IBM LS21, BladeCenter LS21 Type 7971, BladeCenter LS41 Type 7972 Service Manual

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BladeCenter LS2 1 Ty pe 7971 and LS4 1 Ty p e 7972

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Problem Dete rminatio n and Service Guid e

BladeCenter LS2 1 Ty p e 7971 and LS4 1 Ty p e 7972

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Problem Dete rminatio n and Service Guid e

Note: Before using this information and the product it supports, read the general information in Appendix B, “Notices,” on page

103, and the Warranty and Support Information document on the IBM BladeCenter Documentation CD.

Second Edition (February 2007)

US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.

Contents

Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

Guidelines for trained service technicians . . . . . . . . . . . . . . . viii

Inspecting for unsafe conditions . . . . . . . . . . . . . . . . . viii

Guidelines for servicing electrical equipment . . . . . . . . . . . . . viii

Safety statements . . . . . . . . . . . . . . . . . . . . . . . .ix

Chapter 1. Introduction . . . . . . . . . . . . . . . . . . . . . .1

Related documentation . . . . . . . . . . . . . . . . . . . . . .1

Notices and statements in this document . . . . . . . . . . . . . . . .2

Features and specifications . . . . . . . . . . . . . . . . . . . . .3

Blade server controls and LEDs . . . . . . . . . . . . . . . . . . .4

Turning on the blade server . . . . . . . . . . . . . . . . . . . . .6

Turning off the blade server . . . . . . . . . . . . . . . . . . . . .6

System board layouts . . . . . . . . . . . . . . . . . . . . . . .7

System board connectors . . . . . . . . . . . . . . . . . . . .7

System board switches . . . . . . . . . . . . . . . . . . . . .8

System board LEDs . . . . . . . . . . . . . . . . . . . . . .9

Chapter 2. Diagnostics . . . . . . . . . . . . . . . . . . . . .11

Diagnostic tools . . . . . . . . . . . . . . . . . . . . . . . . .11

POST . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

POST beep codes . . . . . . . . . . . . . . . . . . . . . .12

POST error codes . . . . . . . . . . . . . . . . . . . . . . .15

Error logs . . . . . . . . . . . . . . . . . . . . . . . . . .22

Checkout procedure . . . . . . . . . . . . . . . . . . . . . . .24

About the checkout procedure . . . . . . . . . . . . . . . . . .24

Performing the checkout procedure . . . . . . . . . . . . . . . .24

Troubleshooting tables . . . . . . . . . . . . . . . . . . . . . .25

General problems . . . . . . . . . . . . . . . . . . . . . . .25

Hard disk drive problems . . . . . . . . . . . . . . . . . . . .26

Intermittent problems . . . . . . . . . . . . . . . . . . . . . .26

Keyboard or mouse problems . . . . . . . . . . . . . . . . . .27

Memory problems . . . . . . . . . . . . . . . . . . . . . . .28

Microprocessor problems . . . . . . . . . . . . . . . . . . . .28

Monitor or video problems . . . . . . . . . . . . . . . . . . . .29

Network connection problems . . . . . . . . . . . . . . . . . .30

Optional-device problems . . . . . . . . . . . . . . . . . . . .30

Power error messages . . . . . . . . . . . . . . . . . . . . .31

Power problems . . . . . . . . . . . . . . . . . . . . . . .33

Removable-media drive problems . . . . . . . . . . . . . . . . .35

ServerGuide problems . . . . . . . . . . . . . . . . . . . . .36

Service processor problems . . . . . . . . . . . . . . . . . . .36

Software problems . . . . . . . . . . . . . . . . . . . . . .37

Universal Serial Bus (USB) port problems . . . . . . . . . . . . . .37

Light path diagnostics . . . . . . . . . . . . . . . . . . . . . .38

Viewing the light path diagnostics LEDs . . . . . . . . . . . . . . .38

Light path diagnostics LEDs . . . . . . . . . . . . . . . . . . .41

Diagnostic programs, messages, and error codes . . . . . . . . . . . .42

Running the diagnostic programs . . . . . . . . . . . . . . . . .43

Diagnostic text messages . . . . . . . . . . . . . . . . . . . .43

Viewing the test log . . . . . . . . . . . . . . . . . . . . . .44

Diagnostic error codes . . . . . . . . . . . . . . . . . . . . .44

Recovering from a BIOS update failure . . . . . . . . . . . . . . . .50

Service processor (BMC) error codes . . . . . . . . . . . . . . . .51

Solving SAS hard disk drive problems . . . . . . . . . . . . . . . .52

Solving shared BladeCenter resource problems . . . . . . . . . . . . .52

Keyboard or mouse problems . . . . . . . . . . . . . . . . . .52

Media tray problems . . . . . . . . . . . . . . . . . . . . . .53

Network connection problems . . . . . . . . . . . . . . . . . .54

Power problems . . . . . . . . . . . . . . . . . . . . . . .55

Video problems . . . . . . . . . . . . . . . . . . . . . . . .55

Solving undetermined problems . . . . . . . . . . . . . . . . . . .56

Calling IBM for service . . . . . . . . . . . . . . . . . . . . . .58

Chapter 3. Parts listing, Types 7971 and 7972 . . . . . . . . . . . .59

Chapter 4. Removing and replacing blade server components . . . . . .63

Installation guidelines . . . . . . . . . . . . . . . . . . . . . .63

System reliability guidelines . . . . . . . . . . . . . . . . . . .64

Handling static-sensitive devices . . . . . . . . . . . . . . . . .64

Returning a device or component . . . . . . . . . . . . . . . . .64

Removing the blade server from a BladeCenter unit . . . . . . . . . . .65

Installing the blade server in a BladeCenter unit . . . . . . . . . . . . .66

Removing and replacing Tier 1 CRUs . . . . . . . . . . . . . . . .68

Removing the blade server cover . . . . . . . . . . . . . . . . .68

Installing the blade server cover . . . . . . . . . . . . . . . . .69

Removing an expansion unit . . . . . . . . . . . . . . . . . . .70

Installing an expansion unit . . . . . . . . . . . . . . . . . . .71

Removing the bezel assembly . . . . . . . . . . . . . . . . . .72

Installing the bezel assembly . . . . . . . . . . . . . . . . . . .73

Removing a SAS hard disk drive . . . . . . . . . . . . . . . . .74

Installing a SAS hard disk drive . . . . . . . . . . . . . . . . . .75

Removing a memory module . . . . . . . . . . . . . . . . . . .76

Installing a memory module . . . . . . . . . . . . . . . . . . .76

Removing and installing an I/O expansion card . . . . . . . . . . . .78

Removing the battery . . . . . . . . . . . . . . . . . . . . .84

Installing the battery . . . . . . . . . . . . . . . . . . . . . .84

Removing and replacing Tier 2 CRUs . . . . . . . . . . . . . . . .86

Removing a Concurrent KVM Feature Card . . . . . . . . . . . . .86

Installing a Concurrent KVM Feature Card . . . . . . . . . . . . . .87

Removing the hard disk drive tray . . . . . . . . . . . . . . . . .88

Installing the hard disk drive tray . . . . . . . . . . . . . . . . .89

Removing and replacing FRUs . . . . . . . . . . . . . . . . . . .90

Removing a microprocessor and heat sink . . . . . . . . . . . . . .90

Installing a microprocessor and heat sink . . . . . . . . . . . . . .93

Removing the system board assembly . . . . . . . . . . . . . . .95

Installing the system board assembly . . . . . . . . . . . . . . . .96

Chapter 5. Configuration information and instructions . . . . . . . . .97

Firmware updates . . . . . . . . . . . . . . . . . . . . . . . .97

Using the Configuration/Setup Utility program . . . . . . . . . . . . .97

Configuring the Gigabit Ethernet controllers . . . . . . . . . . . . . .97

Blade server Ethernet controller enumeration . . . . . . . . . . . . . .98

Configuring a SAS RAID array . . . . . . . . . . . . . . . . . . .99

Appendix A. Getting help and technical assistance . . . . . . . . . . 101

Before you call . . . . . . . . . . . . . . . . . . . . . . . . 101

Using the documentation . . . . . . . . . . . . . . . . . . . . . 101

Getting help and information from the World Wide Web . . . . . . . . . 101

iv BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

Software service and support . . . . . . . . . . . . . . . . . . . 102

Hardware service and support . . . . . . . . . . . . . . . . . . . 102

Appendix B. Notices . . . . . . . . . . . . . . . . . . . . . . 103

Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Important notes . . . . . . . . . . . . . . . . . . . . . . . . 104

Product recycling and disposal . . . . . . . . . . . . . . . . . . 105

Battery return program . . . . . . . . . . . . . . . . . . . . . 106

Electronic emission notices . . . . . . . . . . . . . . . . . . . . 107

Federal Communications Commission (FCC) statement . . . . . . . . 107

Industry Canada Class A emission compliance statement . . . . . . . . 107

Australia and New Zealand Class A statement . . . . . . . . . . . . 107

United Kingdom telecommunications safety requirement . . . . . . . . 107

European Union EMC Directive conformance statement . . . . . . . . 108

Taiwanese Class A warning statement . . . . . . . . . . . . . . . 108

Chinese Class A warning statement . . . . . . . . . . . . . . . . 108

Japanese Voluntary Control Council for Interference (VCCI) statement 108

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

Contents v

vi BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

Safety

Before installing this product, read the Safety Information.

Antes de instalar este produto, leia as Informações de Segurança.

Pred instalací tohoto produktu si prectete prírucku bezpecnostních instrukcí.

Læs sikkerhedsforskrifterne, før du installerer dette produkt.

Lees voordat u dit product installeert eerst de veiligheidsvoorschriften.

Ennen kuin asennat tämän tuotteen, lue turvaohjeet kohdasta Safety Information.

Avant d’installer ce produit, lisez les consignes de sécurité.

Vor der Installation dieses Produkts die Sicherheitshinweise lesen.

Prima di installare questo prodotto, leggere le Informazioni sulla Sicurezza.

Les sikkerhetsinformasjonen (Safety Information) før du installerer dette produktet.

Antes de instalar este produto, leia as Informações sobre Segurança.

Antes de instalar este producto, lea la información de seguridad.

Läs säkerhetsinformationen innan du installerar den här produkten.

Guidelines for trained service technicians

This section contains information for trained service technicians.

Inspecting for unsafe conditions

Use the information in this section to help you identify potential unsafe conditions in an IBM product on which you are working. Each IBM product, as it was designed and manufactured, has required safety items to protect users and service technicians from injury. The information in this section addresses only those items. Use good judgment to identify potential unsafe conditions that might be caused by non-IBM alterations or attachment of non-IBM features or options that are not addressed in this section. If you identify an unsafe condition, you must determine how serious the hazard is and whether you must correct the problem before you work on the product.

Consider the following conditions and the safety hazards that they present:

v Electrical hazards, especially primary power. Primary voltage on the frame can

cause serious or fatal electrical shock.

v Explosive hazards, such as a damaged CRT face or a bulging capacitor.

v Mechanical hazards, such as loose or missing hardware.

inspect the product for potential unsafe conditions, complete the following steps:

1. Make sure that the power is off and the power cord is disconnected.

2. Make sure that the exterior cover is not damaged, loose, or broken, and

observe any sharp edges.

3. Check the power cord:

v Make sure that the third-wire ground connector is in good condition. Use a

meter to measure third-wire ground continuity for 0.1 ohm or less between the external ground pin and the frame ground.

v Make sure that the power cord is the correct type, as specified in the

documentation for your BladeCenter unit type.

v Make sure that the insulation is not frayed or worn.

Remove the cover.

5. Check for any obvious non-IBM alterations. Use good judgment as to the safety

of any non-IBM alterations.

6. Check inside the server for any obvious unsafe conditions, such as metal filings,

contamination, water or other liquid, or signs of fire or smoke damage.

7. Check for worn, frayed, or pinched cables.

8. Make sure that the power-supply cover fasteners (screws or rivets) have not

been removed or tampered with.

Guidelines for servicing electrical equipment

Observe the following guidelines when servicing electrical equipment:

v Check the area for electrical hazards such as moist floors, non-grounded power

extension cords, and missing safety grounds.

v Use only approved tools and test equipment. Some hand tools have handles that

are covered with a soft material that does not provide insulation from live

electrical current.

v Regularly inspect and maintain your electrical hand tools for safe operational

condition. Do not use worn or broken tools or testers.

viii BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

v Do not touch the reflective surface of a dental mirror to a live electrical circuit.

The surface is conductive and can cause personal injury or equipment damage if it touches a live electrical circuit.

v Some rubber floor mats contain small conductive fibers to decrease electrostatic

discharge. Do not use this type of mat to protect yourself from electrical shock.

v Do not work alone under hazardous conditions or near equipment that has

hazardous voltages.

v Locate the emergency power-off (EPO) switch, disconnecting switch, or electrical

outlet so that you can turn off the power quickly in the event of an electrical accident.

v Disconnect all power before you perform a mechanical inspection, work near

power supplies, or remove or install main units.

v Before you work on the equipment, disconnect the power cord. If you cannot

disconnect the power cord, have the customer power-off the wall box that supplies power to the equipment and lock the wall box in the off position.

v Never assume that power has been disconnected from a circuit. Check it to

make sure that it has been disconnected.

v If you have to work on equipment that has exposed electrical circuits, observe

the following precautions:

– Make sure that another person who is familiar with the power-off controls is

near you and is available to turn off the power if necessary.

– When you are working with powered-on electrical equipment, use only one

hand. Keep the other hand in your pocket or behind your back to avoid creating a complete circuit that could cause an electrical shock.

– When using a tester, set the controls correctly and use the approved probe

leads and accessories for that tester.

– Stand on a suitable rubber mat to insulate you from grounds such as metal

floor strips and equipment frames.

Use extreme care when measuring high voltages.

v To ensure proper grounding of components such as power supplies, pumps,

blowers, fans, and motor generators, do not service these components outside of their normal operating locations.

v If an electrical accident occurs, use caution, turn off the power, and send another

person to get medical aid.

Safety statements

Important:

Each caution and danger statement in this documentation begins with a number.

This number is used to cross reference an English-language caution or danger

statement with translated versions of the caution or danger statement in the Safety

Information document.

For example, if a caution statement begins with a number 1, translations for that

caution statement appear in the Safety Information document under statement 1.

Be sure to read all caution and danger statements in this documentation before

performing the instructions. Read any additional safety information that comes with

your server or optional device before you install the device.

Safety ix

Statement 1:

DANGER

Electrical

current from power, telephone, and communication cables is

hazardous.

To avoid a shock hazard: v Do not connect or disconnect any cables or perform installation,

maintenance, or reconfiguration of this product during an electrical storm.

v Connect all power cords to a properly wired and grounded electrical

outlet.

v Connect to properly wired outlets any equipment that will be attached to

this product.

v When possible, use one hand only to connect or disconnect signal

cables.

v Never turn on any equipment when there is evidence of fire, water, or

structural damage.

v Disconnect the attached power cords, telecommunications systems,

networks, and modems before you open the device covers, unless instructed otherwise in the installation and configuration procedures.

v Connect and disconnect cables as described in the following table when

installing, moving, or opening covers on this product or attached devices.

To Connect: To Disconnect:

1. Turn everything OFF.

2. First, attach all cables to devices.

3. Attach signal cables to connectors.

4. Attach power cords to outlet.

1. Turn everything OFF.

2. First, remove power cords from outlet.

3. Remove signal cables from connectors.

4. Remove all cables from devices.

5. Turn device ON.

x BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

Statement 2:

CAUTION:

When replacing the lithium battery, use only IBM Part Number 33F8354 or an

equivalent type battery recommended by the manufacturer. If your system has

a module containing a lithium battery, replace it only with the same module

type made by the same manufacturer. The battery contains lithium and can

explode if not properly used, handled, or disposed of.

Do not:

v Throw or immerse into water

v Heat to more than 100°C (212°F)

v Repair or disassemble

Dispose

Statement 3:

of the battery as required by local ordinances or regulations.

CAUTION:

When laser products (such as CD-ROMs, DVD drives, fiber optic devices, or

transmitters) are installed, note the following:

v Do not remove the covers. Removing the covers of the laser product could

result in exposure to hazardous laser radiation. There are no serviceable parts inside the device.

v Use of controls or adjustments or performance of procedures other than

those specified herein might result in hazardous radiation exposure.

DANGER

laser products contain an embedded Class 3A or Class 3B laser

Some diode. Note the following.

Laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam.

Safety xi

Statement 4:

≥ 18 kg (39.7 lb) ≥ 32 kg (70.5 lb) ≥ 55 kg (121.2 lb)

CAUTION: Use safe practices when lifting.

Statement 5:

CAUTION: The power control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.

1 2

xii BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

Statement 8:

CAUTION:

Never remove the cover on a power supply or any part that has the following

label attached.

Hazardous voltage, current, and energy levels are present inside any

component that has this label attached. There are no serviceable parts inside

these components. If you suspect a problem with one of these parts, contact

a service technician.

Statement 10:

CAUTION:

Do not place any object on top of rack-mounted devices.

Statement 21:

CAUTION:

Hazardous energy is present when the blade is connected to the power

source. Always replace the blade cover before installing the blade.

Safety xiii

xiv BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

Chapter 1. Introduction

This Problem Determination and Service Guide contains information to help you

solve problems that might occur in your IBM® BladeCenter® LS21 Type 7971 and

LS41 Type 7972 blade server. It describes the diagnostic tools that come with the

blade server, error codes and suggested actions, and instructions for replacing

failing components.

Replaceable components are of three types:

v Tier 1 customer replaceable unit (CRU): Replacement of Tier 1 CRUs is your

responsibility. If IBM installs a Tier 1 CRU at your request, you will be charged for the installation.

v Tier 2 customer replaceable unit: You may install a Tier 2 CRU yourself or

request IBM to install it, at no additional charge, under the type of warranty service that is designated for your server.

v Field replaceable unit (FRU): FRUs must be installed only by trained service

technicians.

information about the terms of the warranty and getting service and assistance,

For

see the Warranty and Support Information document.

Related documentation

In addition to this document, the following documentation also comes with the

server:

v Installation and User’s Guide

This printed document contains general information about the server, including how to install supported options and how to configure the server.

v Safety Information

This document is in Portable Document Format (PDF) on the IBM Documentation CD. It contains translated caution and danger statements. Each caution and danger statement that appears in the documentation has a number that you can use to locate the corresponding statement in your language in the Safety

Information document.

v Warranty and Support Information

This document is in PDF on the IBM Documentation CD. It contains information about the terms of the warranty and about service and assistance.

Depending

IBM Documentation CD.

The blade server might have features that are not described in the documentation

that comes with the server. The documentation might be updated occasionally to

include information about those features, or technical updates might be available to

provide additional information that is not included in the blade server

documentation. The most recent versions of all BladeCenter documentation are at

http://www.ibm.com/bladecenter/. In addition to the documentation in this library, be

sure to review the IBM BladeCenter Planning and Installation Guide for your

BladeCenter unit type for information to help you prepare for system installation and

configuration. This document is available at http://www.ibm.com/bladecenter/.

on the server model, additional documentation might be included on the

Notices and statements in this document

The caution and danger statements that appear in this document are also in the multilingual Safety Information document, which is on the IBM Documentation CD. Each statement is numbered for reference to the corresponding statement in the

Safety Information document.

The following notices and statements are used in this document:

v Note: These notices provide important tips, guidance, or advice. v Important: These notices provide information or advice that might help you avoid

inconvenient or problem situations.

v Attention: These notices indicate potential damage to programs, devices, or

data. An attention notice is placed just before the instruction or situation in which

damage could occur.

v Caution: These statements indicate situations that can be potentially hazardous

to you. A caution statement is placed just before the description of a potentially

hazardous procedure step or situation.

v Danger: These statements indicate situations that can be potentially lethal or

extremely hazardous to you. A danger statement is placed just before the

description of a potentially lethal or extremely hazardous procedure step or

situation.

2 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

Features and specifications

The following table provides a summary of the features and specifications of the

blade server.

Notes:

v Power, cooling, removable-media drives, external ports, and advanced system

management are provided by the BladeCenter unit.

v The operating system in the blade server must provide USB support for the blade

server to recognize and use the removable-media drives and front-panel USB ports. The BladeCenter unit uses USB for internal communications with these devices.

Microprocessor: Supports dual-core

AMD Opteron® microprocessors: Up to two in single-width models or four in double-width models

Note: Use the Configuration/Setup

Utility program to determine the type and speed of the microprocessors in your blade server.

Memory:

v Dual-channel DIMMs: 8 DIMM slots

in single-width models or 16 DIMM slots in double-width models

v Type: Very-low profile (VLP),

double-data rate 2 (DDR2), ECC SDRAM registered x4 (Chipkill) or x8 (non-Chipkill) DIMMs

v Supports 512 MB, 1 GB, and 2 GB

(as of the date of this publication): Total memory of up to 16 GB in single-width models or 32 GB in double-width models

Drives:

Supports small-form-factor,

Serial Attached SCSI (SAS) drives: One in single-width models or two in double-width models

Integrated functions:

v Dual Gigabit Ethernet controllers v Expansion card interface v Local service processor:

Baseboard management controller (BMC) with Intelligent Platform Management Interface (IPMI) firmware

v ATI RN-50 video controller v LSI 1064 Serial Attached SCSI

(SAS) controller

v Light path diagnostics v RS-485 interface for

communication with the management module

v Automatic server restart (ASR) v Serial over LAN (SOL) v Four USB buses for

communication with keyboard, mouse, and removable media drives

Predictive alerts:

v Microprocessor

v Memory

v Hard disk drives

Electrical

Failure Analysis

Input: 12 V dc

(PFA)

Environment:

v Air temperature:

– Blade server on: 10° to 35° C

(50° to 95° F). Altitude: 0 to 914 m (0 to 3000 ft)

– Blade server on: 10° to 32° C

(50° to 90° F). Altitude: 914 to 2134 m (3000 to 7000 ft)

– Blade server off: -40° to 60° C

(-40° to 140° F)

Humidity:

– Blade server on: 8% to 80% – Blade server off: 5% to 80%

Size:

v Height: 24.5 cm (9.7 inches)

v Depth: 44.6 cm (17.6 inches)

v Width:

– Single-width models: 2.9 cm (1.14

inches)

– Double-width models: 5.8 cm

(2.28 inches)

Maximum weight:

– Single-width models: 4.9 kg (10.8

lb)

– Double-width models: 11.2 kg

(24.7 lb)

Chapter 1. Introduction 3

Blade server controls and LEDs

This section describes the controls and LEDs on the blade server.

Note: The control panel door is shown in the closed (normal) position in the

following illustration. To access the power-control button, you must open the control panel door.

Activity LED

Location LED

KVM select button

Information LED

Blade-error LED

Media-tray select button

Power-control button

Power-on LED

KVM select button: Press this button to associate the shared BladeCenter unit

keyboard, video, and mouse port (KVM) with the blade server. The LED on this button flashes while the request is being processed, and then is lit when the ownership of the keyboard, video, and mouse has been transferred to the blade server. It can take approximately 20 seconds to switch the keyboard, video, and mouse control to the blade server.

Using a keyboard that is directly attached to the management-module, you can press keyboard keys in the following sequence to switch KVM control between blade servers:

NumLock NumLock blade_server_number Enter

Where blade_server_number is the two-digit number for the blade bay in which the blade server is installed. A blade server that occupies more than one blade bay is identified by the lowest bay number that it occupies.

If there is no response when you press the KVM select button, you can use the management-module Web interface to determine whether local control has been disabled on the blade server.

Notes:

1. The operating system in the blade server must provide USB support for the

blade server to recognize and use the keyboard and mouse, even if the keyboard and mouse have PS/2-style connectors.

2. If you install a supported Microsoft Windows operating system on the blade

server while it is not the current owner of the KVM, a delay of up to 1 minute occurs the first time that you switch the KVM to the blade server. All subsequent switching takes place in the normal KVM switching time frame (up to 20 seconds).

4 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

Activity LED: When this green LED is lit, it indicates that there is activity on the

hard disk drive or network.

Location LED: When this blue LED is lit, it has been turned on by the system

administrator to aid in visually locating the blade server. The location LED on the

BladeCenter unit is lit also. The location LED can be turned off through the

management-module Web interface or through IBM Director Console.

Information LED: When this amber LED is lit, it indicates that information about a

system error for the blade server has been placed in the management-module

event log. The information LED can be turned off through the management-module

Web interface or through IBM Director Console.

Blade-error LED: When this amber LED is lit, it indicates that a system error has

occurred in the blade server. The blade-error LED will turn off only after the error is

corrected.

Media-tray select button: Press this button to associate the shared BladeCenter

unit media tray (removable-media drives and front-panel USB ports) with the blade

server. The LED on the button flashes while the request is being processed, and

then is lit when the ownership of the media tray has been transferred to the blade

server. It can take approximately 20 seconds for the operating system in the blade

server to recognize the media tray.

If there is no response when you press the media-tray select button, you can use

the management-module Web interface to determine whether local control has been

disabled on the blade server.

Note: The operating system in the blade server must provide USB support for the

blade server to recognize and use the removable-media drives and front-panel USB

ports.

Power-control button: This button is behind the control panel door. Press this

button to turn on or turn off the blade server.

Note: The power-control button has effect only if local power control is enabled for

the blade server. Local power control is enabled and disabled through the

management-module Web interface.

Power-on LED: This green LED indicates the power status of the blade server in

the following manner:

v Flashing rapidly: The service processor (BMC) on the blade server is

communicating with the management module.

v Flashing slowly: The blade server has power but is not turned on.

v Lit continuously: The blade server has power and is turned on.

Chapter 1. Introduction 5

Turning on the blade server

After you connect the blade server to power through the BladeCenter unit, the blade server can start in any of the following ways:

v You can press the power-control button on the front of the blade server (behind

the control panel door, see “Blade server controls and LEDs” on page 4) to start

the blade server.

Notes:

1. Wait until the power-on LED on the blade server flashes slowly before pressing the power-control button. While the service processor in the management module is initializing, the power-on LED does not flash, and the power-control button on the blade server does not respond.

2. While the blade server is starting, the power-on LED on the front of the blade server is lit. See “Blade server controls and LEDs” on page 4 for the power-on LED states.

If a power failure occurs, the BladeCenter unit and then the blade server can

start automatically when power is restored, if the blade server is configured through the management module to do so.

v You can turn on the blade server remotely by using the management module.

v If the blade server is connected to power (the power-on LED is flashing slowly),

the operating system supports the Wake on LAN® feature, and the Wake on LAN feature has not been disabled through the management module, the Wake on LAN feature can turn on the blade server.

Turning off the blade server

When you turn off the blade server, it is still connected to power through the BladeCenter unit. The blade server can respond to requests from the service processor, such as a remote request to turn on the blade server. To remove all power from the blade server, you must remove it from the BladeCenter unit.

Shut down the operating system before you turn off the blade server. See the operating-system documentation for information about shutting down the operating system.

The blade server can be turned off in any of the following ways:

v You can press the power-control button on the blade server (behind the control

panel door, see “Blade server controls and LEDs” on page 4). This starts an orderly shutdown of the operating system, if this feature is supported by the operating system.

v If the operating system stops functioning, you can press and hold the

power-control button for more than 4 seconds to turn off the blade server.

v The management module can turn off the blade server.

– If the system is not operating correctly, the management module will

automatically turn off the blade server.

– Through the management-module Web interface, you can also configure the

management module to turn off the blade server. For additional information, see the IBM BladeCenter Management Module User’s Guide.

6 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

System board layouts

The following illustrations show the connectors, LEDs, and switches on the blade server system board and the Multiprocessor Expansion (MPE) unit. The illustrations in this document might differ slightly from your hardware.

System board connectors

The following illustration shows the connectors on the blade server system board.

Blade expansion

Microprocessor 1

DIMM 4 DIMM 3 DIMM 2 DIMM 1

Microprocessor 2

Concurrent KVM

I/O-expansion card

Battery

SAS hard disk drive

DIMM 8 DIMM 7 DIMM 6 DIMM 5

The following illustration shows the connectors on the MPE unit.

Blade expansion

Microprocessor 1

DIMM 4 DIMM 3 DIMM 2 DIMM 1

Microprocessor 2

MPE unit

Control panel

I/O-expansion card

SAS hard disk drive

DIMM 8 DIMM 7 DIMM 6 DIMM 5

Chapter 1. Introduction 7

System board switches

The following illustration shows the location of the switches on the blade server system board.

Switch block 4 (SW4)

The following table defines the function of each switch on the blade server system board.

Light path diagnostics switch (SW1)

Switch number Description

SW1 Light path diagnostics switch – Press and hold to

relight the system-board LEDs that were lit before you removed the blade server from the BladeCenter unit.

SW4 Switch block 4 has four switches.

v 1 – Reserved

v 2 – BIOS backup page

– Open: BIOS starts from the primary BIOS

page (default)

– Closed: BIOS starts from the backup BIOS

page

3 – Password override enable

– Open: Disabled (default)

– Closed: Enabled – Bypass password during

next server start

4 – Wake On LAN enable

– Open: Disabled

– Closed: Enabled (default)

8 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

The following illustration shows the location of the light path diagnostics switch on the MPE unit.

Light path diagnostics switch (SW1)

The following table defines the function of the light path diagnostics switch on the MPE unit.

Switch number Description

SW1 Light path diagnostics switch – Press and hold to

System board LEDs

The following illustration shows the LEDs on the blade server system board. You must remove the blade server from the BladeCenter unit, open the cover or remove any optional expansion units, and press the light path diagnostics switch to light any error LEDs that were turned on during processing.

Microprocessor 1 error LED

relight the MPE-unit LEDs that were lit before you removed the blade server from the BladeCenter unit.

DIMM 4 error LED DIMM 3 error LED DIMM 2 error LED DIMM 1 error LED

Light path diagnostics panel

SAS hard disk drive error LED

DIMM 8 error LED DIMM 7 error LED DIMM 6 error LED DIMM 5 error LED

Microprocessor 2 error LED

Chapter 1. Introduction 9

The following illustration shows the light path diagnostics panel on the blade server system board.

NMI

NMI error LED

MIS S BRD

TEMP

LP 1

Microprocessor mismatch error LED

System-board error LED

Over temperature error LED

Light path diagnostics LED

Light path diagnostics switch

The following illustration shows the LEDs on the MPE unit. You must remove the blade server from the BladeCenter unit, open the cover, and press the light path diagnostics switch to light any error LEDs that were turned on during processing.

Microprocessor 1 error LED

DIMM 4 error LED DIMM 3 error LED DIMM 2 error LED DIMM 1 error LED

Light path diagnostics panel

SAS hard disk drive error LED

DIMM 8 error LED DIMM 7 error LED DIMM 6 error LED DIMM 5 error LED

Microprocessor 2 error LED

The following illustration shows the light path diagnostics panel on the MPE unit.

MIS

S BRD

LP 1

LP 2

Microprocessor mismatch error LED

MPE-board error LED

Light path diagnostics LED (for blade server)

Light path diagnostics LED (for MPE)

Light path diagnostics switch

10 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

Chapter 2. Diagnostics

This chapter describes the diagnostic tools that are available to help you solve problems that might occur in the blade server.

Note: The blade server uses shared resources that are installed in the BladeCenter

unit. Problems with these shared resources might appear to be in the blade server (see “Solving shared BladeCenter resource problems” on page 52 for information about isolating problems with these resources). See the Problem Determination and

Service Guide or the Hardware Maintenance Manual and Troubleshooting Guide for

your BladeCenter unit and other BladeCenter component documentation for diagnostic procedures for shared BladeCenter components.

If you cannot locate and correct the problem using the information in this chapter, see Appendix A, “Getting help and technical assistance,” on page 101 for more information.

Diagnostic tools

The following tools are available to help you diagnose and solve hardware-related problems:

v POST beep codes, error messages, and error logs

The power-on self-test (POST) generates beep codes and messages to indicate successful test completion or the detection of a problem. See “POST” for more information.

v Troubleshooting tables

These tables list problem symptoms and actions to correct the problems. See “Troubleshooting tables” on page 25 for more information.

v Light path diagnostics

Use the light path diagnostics to diagnose system errors quickly. See “Light path diagnostics” on page 38 for more information.

v Diagnostic programs, messages, and error codes

The diagnostic programs are the primary method of testing the major components of the blade server. These programs are stored in read-only memory (ROM) on the blade server. See “Diagnostic programs, messages, and error codes” on page 42 for more information.

POST

When you turn on the blade server, it performs a series of tests to check the operation of the blade server components and some optional devices in the blade server. This series of tests is called the power-on self-test, or POST.

If a power-on password is set, you must type the password and press Enter, when prompted, for POST to run.

If POST is completed without detecting any problems, a single beep sounds, and the blade server startup is completed.

If POST detects a problem, more than one beep might sound, or an error message is displayed. See “Beep code descriptions” on page 12 and “POST error codes” on page 15 for more information.

POST beep codes

A beep code is a combination of short or long beeps or a series of short beeps that are separated by pauses. For example, a “1-2-3” beep code is one short beep, a pause, two short beeps, a pause, and three short beeps. A beep code other than one beep indicates that POST has detected a problem. To determine the meaning of a beep code, see “Beep code descriptions.” If no beep code sounds, see “No-beep symptoms” on page 15.

Beep code descriptions

The following table describes the beep codes and suggested actions to correct the detected problems.

A single problem might cause more than one error message. When this occurs, correct the cause of the first error message. The other error messages usually will not occur the next time POST runs.

Exception: If there are multiple error codes or light path diagnostics LEDs that

indicate a microprocessor error, the error might be in a microprocessor or in a microprocessor socket. See “Microprocessor problems” on page 28 for information about diagnosing microprocessor problems.

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Beep code Description Action

1-1-3 CMOS write/read test failed.

1-1-4 BIOS ROM checksum failed.

1-2-1 Programmable interval timer failed. (Trained service technician only) Replace the

1-2-2 DMA initialization failed. (Trained service technician only) Replace the

1-2-3 DMA page register write/read failed. (Trained service technician only) Replace the

1. Reseat the battery

2. Replace the following components one at a time, in the order shown, restarting the blade server each time:

a. Battery

b. (Trained service technician only) System

board assembly

1. Update the BIOS code.

2. Reseat the DIMMs.

3. Replace the following components one at a time, in the order shown, restarting the blade server each time:

a. DIMMs

b. (Trained service technician only) System

board assembly

system board assembly.

12 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Beep code Description Action

1-2-4 RAM refresh verification failed.

1. Reseat the following components:

a. DIMMs

b. MPE unit (if one is installed)

Replace the following components one at a

2. time, in the order shown, restarting the blade server each time:

a. DIMMs

b. (Trained service technician only) System

board assembly

c. (Trained service technician only) MPE

board assembly (if one is installed)

1-3-1 First 64K RAM test failed.

1. Reseat the DIMMs.

2. Replace the following components one at a time, in the order shown, restarting the blade server each time:

a. DIMMs

b. (Trained service technician only) System

board assembly

2-1-1 Secondary DMA register test failed. (Trained service technician only) Replace the

system board assembly.

2-1-2 Primary DMA register test failed. (Trained service technician only) Replace the

system board assembly.

2-1-3 Primary interrupt mask register test

failed.

2-1-4 Secondary interrupt mask register test

failed.

2-2-2 Keyboard controller test failed.

(Trained service technician only) Replace the system board assembly.

1. Check the function of the shared BladeCenter unit resources (see “Solving shared BladeCenter resource problems” on page 52).

2. (Trained service technician only) Replace the system board assembly.

2-3-1 Screen initialization failed. (Trained service technician only) Replace the

system board assembly.

3-1-1 Timer tick interrupt failed. (Trained service technician only) Replace the

system board assembly.

3-1-2 Interval timer channel 2 failed. (Trained service technician only) Replace the

system board assembly.

Chapter 2. Diagnostics 13

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Beep code Description Action

3-1-4 Time-of-day clock failed.

1. Reseat the battery.

2. Replace the following components one at a time, in the order shown, restarting the blade server each time:

a. Battery

b. (Trained service technician only) System

board assembly

3-3-2 I2C error occurred.

1. Power down the blade server and reseat it in the BladeCenter unit.

2. Reseat the following components:

a. DIMMs

b. MPE unit (if one is installed)

Replace the following components one at a

3. time, in the order shown, restarting the blade server each time:

a. DIMMs

b. (Trained service technician only) System

board assembly

3-3-3 No operational memory in system. Important: In some memory configurations,

the 3-3-3 beep code might sound during POST followed by a blank display screen. If this occurs and the Boot Fail Count feature in the Start Options of the Configuration/Setup Utility program is set to Enabled (its default setting), you must restart the blade server three times to force the system BIOS to reset the memory connector or bank of connectors from Disabled to Enabled.

1. Install or reseat DIMMs and restart the blade server three times.

2. Replace the following components one at a time, in the order shown, restarting the blade server each time:

a. DIMMs

b. (Trained service technician only) System

board assembly

14 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

No-beep symptoms

The following table describes situations in which no beep code sounds when POST is completed.

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

No-beep symptom Action

No beep and the blade server operates correctly (Trained service technician only) Replace the system

board assembly.

No beep and no video (system-error LED is off) See “Solving undetermined problems” on page 56.

No beep and no video (system attention LED is lit) See “Light path diagnostics” on page 38.

POST error codes

The following table describes the POST error codes and suggested actions to correct the detected problems.

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Error code Description Action

062 Three consecutive startup failures

1. Run the Configuration/Setup Utility program, select

Load Default Settings, make sure that the date and time are correct, and save the settings.

2. Reseat the following components:

a. Battery

b. MPE unit (if one is installed)

c. DIMMs

d. (Trained service technician only)

Microprocessor 1

e. (Trained service technician only)

Microprocessor 2

Replace the following components one at a time,

3. in the order shown, restarting the blade server each time:

a. Battery

b. DIMMs

c. (Trained service technician only)

Microprocessor 1

d. (Trained service technician only)

Microprocessor 2

e. (Trained service technician only) System board

assembly

Chapter 2. Diagnostics 15

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Error code Description Action

101 Timer tick interrupt failure (Trained service technician only) Replace the system

board assembly.

102 Timer 2 test failure (Trained service technician only) Replace the system

board assembly.

106 Diskette controller failure (Trained service technician only) Replace the system

board assembly.

129 Internal cache (L1) error

1. Reseat the following components:

a. (Trained service technician only)

Microprocessor 1

b. (Trained service technician only)

Microprocessor 2

Replace the following components one at a time,

2. in the order shown, restarting the blade server each time:

a. (Trained service technician only)

Microprocessor 1

b. (Trained service technician only)

Microprocessor 2

c. (Trained service technician only) System board

assembly

151 Real-time clock failure

1. Reseat the battery.

2. Replace the following components one at a time, in the order shown, restarting the blade server each time:

a. Battery

b. (Trained service technician only) System board

assembly

161 Real-time clock battery failure

1. Run the Configuration/Setup Utility program.

2. Reseat the battery.

3. Replace the following components one at a time, in the order shown, restarting the blade server each time:

a. Battery

b. (Trained service technician only) System board

assembly

16 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Error code Description Action

162 Invalid configuration information or CMOS

RAM checksum failure.

1. Run the Configuration/Setup Utility program, select

Load Default Settings, and save the settings.

2. Reseat the battery.

3. Replace the following components one at a time, in the order shown, restarting the blade server each time:

a. Battery

b. (Trained service technician only) System board

assembly

163 Time of day not set.

1. Run the Configuration/Setup Utility program, select Load Default Settings, make sure that the date and time are correct, and save the settings.

2. Reseat the battery.

3. Replace the following components one at a time, in the order shown, restarting the blade server each time:

a. Battery

b. (Trained service technician only) System board

assembly

164 Memory size does not match CMOS.

1. Run the Configuration/Setup Utility program, make sure that the memory configuration is correct, and save the settings.

2. Reseat the DIMMs.

3. Replace the following components one at a time, in the order shown, restarting the blade server each time:

a. DIMMs

b. (Trained service technician only) System board

assembly

175 Bad EEPROM CRC #1 (Trained service technician only) Replace the system

board assembly.

177 Bad checksum (Trained service technician only) Replace the system

board assembly.

178 EEPROM not functional (Trained service technician only) Replace the system

board assembly.

184 Bad power-on password. (Trained service technician only) Replace the system

board assembly.

185 Corrupted boot sequence

1. Run the Configuration/Setup Utility program, select Load Default Settings, and save the settings.

2. (Trained service technician only) Replace the system board assembly.

186 Security hardware control logic error (Trained service technician only) Replace the system

board assembly.

Chapter 2. Diagnostics 17

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Error code Description Action

187 VPD Serial Number not set (Trained service technician only) Replace the system

board assembly.

188 Bad EEPROM CRC #2 (Trained service technician only) Replace the system

board assembly.

189 Three attempts to enter the incorrect

password.

1. Set the Password override enable switch on the system board to Enable; then, restart the blade server, run the Configuration/Setup Utility program, and change the power-on password.

2. (Trained service technician only) Replace the system board assembly.

201 Base memory error or extended memory

error.

1. Update the BIOS code and restart the blade server.

2. Reseat the DIMMs.

3. Replace the following components one at a time, in the order shown, restarting the blade server each time:

a. DIMMs

b. (Trained service technician only) System board

assembly

229 Internal cache (L2) error.

1. Reseat the following components:

a. (Trained service technician only)

Microprocessor 1

b. (Trained service technician only)

Microprocessor 2

Replace the following components one at a time,

2. in the order shown, restarting the blade server each time:

a. (Trained service technician only)

Microprocessor 1

b. (Trained service technician only)

Microprocessor 2

c. (Trained service technician only) System board

assembly

289 DIMM disabled by user or system.

1. If the DIMM was disabled by the user, run the Configuration/Setup Utility program and enable the DIMM.

2. Reseat the disabled DIMM.

3. Replace the following components one at a time, in the order shown, restarting the blade server each time:

a. Disabled DIMM

b. (Trained service technician only) System board

assembly

18 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Error code Description Action

301 Keyboard failure.

1. If you have installed a USB keyboard, run the Configuration/Setup Utility program and enable keyboardless operation to prevent the POST error message 301 from being displayed during startup.

2. Check the function of the shared BladeCenter unit resources (see “Solving shared BladeCenter resource problems” on page 52).

3. (Trained service technician only) Replace the system board assembly.

303 Keyboard controller error.

1. Check the function of the shared BladeCenter unit resources (see “Solving shared BladeCenter resource problems” on page 52).

2. (Trained service technician only) Replace the system board assembly.

602 Invalid diskette boot record.

1. Check the function of the shared BladeCenter unit resources (see “Solving shared BladeCenter resource problems” on page 52).

2. (Trained service technician only) Replace the system board assembly

604 Diskette drive failure.

1. Check the function of the shared BladeCenter unit resources (see “Solving shared BladeCenter resource problems” on page 52).

2. (Trained service technician only) Replace the system board assembly

662 Diskette drive configuration error.

1. Check the function of the shared BladeCenter unit resources (see “Solving shared BladeCenter resource problems” on page 52).

2. (Trained service technician only) Replace the system board assembly

1200 Processor machine check.

1. Reseat the following components:

a. (Trained service technician only)

Microprocessor 1

b. (Trained service technician only)

Microprocessor 2

Replace the following components one at a time,

2. in the order shown, restarting the blade server each time:

a. (Trained service technician only)

Microprocessor 1

b. (Trained service technician only)

Microprocessor 2

c. (Trained service technician only) System board

assembly

Chapter 2. Diagnostics 19

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Error code Description Action

1801 No more room for option ROM.

1. Run the Configuration/Setup Utility program and make sure that the PXE settings are correct. Disabling PXE can allow more options to be managed.

2. Use the Configuration/Setup Utility program (Advanced Setup → PCI Bus Control → PCI ROM Control) to disable each option one at a time, restarting the blade server each time, until the 1801 error code clears. Options that cause the 1801 error code are the I/O-expansion cards and expansion units. Disable these options in the order of least-to-most important.

3. Remove each option one at a time, restarting the blade server each time, until the 1801 error code clears. Options that cause the 1801 error code are the I/O-expansion cards and expansion units. Remove these options in the order of least-to-most important.

4. (Trained service technician only) If the problem remains after all options have been removed, replace the system board assembly.

18xx PCI error (Trained service technician only) Replace the system

board assembly.

1962 Boot sector error, no operating system

installed.

1. Make sure that a bootable operating system is installed.

2. Run the SAS Attached Disk diagnostic test.

3. Reseat the hard disk drive.

4. Replace the following components one at a time, in the order shown, restarting the blade server each time:

a. Hard disk drive

b. (Trained service technician only) System board

assembly

2462 Video configuration error (Trained service technician only) Replace the system

board assembly.

20 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Error code Description Action

5962 CD or DVD drive configuration error.

1. Run the Configuration/Setup Utility program, select

Load Default Settings, and save the settings.

2. Check the function of the shared BladeCenter unit resources (see “Solving shared BladeCenter resource problems” on page 52).

3. Reseat the battery.

4. Replace the following components one at a time, in the order shown, restarting the blade server each time:

a. Battery

b. (Trained service technician only) System board

assembly

8603 Pointing device error

1. Check the function of the shared BladeCenter unit resources (see “Solving shared BladeCenter resource problems” on page 52).

2. (Trained service technician only) Replace the system board assembly.

I999301 Fixed disk boot sector error.

1. Reseat the hard disk drive.

2. Replace the following components one at a time, in the order shown, restarting the blade server each time:

a. Hard disk drive

b. (Trained service technician only) System board

assembly

Chapter 2. Diagnostics 21

Error logs

The BMC log contains all system status messages from the blade server service processor. The management-module event log in your BladeCenter unit contains messages that were generated on each blade server during POST and status messages from the BladeCenter service processor. (See the Management Module

User’s Guide for more information.)

The following illustration shows an example of a BMC log entry.

BMC System Event Log

---------------------------------------------------------Get Next Entry Get Previous Entry Clear BMC SEL

Entry Number= 00005 / 00011 Record ID= 0005 Record Type= 02 Timestamp= 2005/01/25 16:15:17 Entry Details: Generator ID= 0020

Sensor Type= 04 Assertion Event Fan Threshold Lower Non-critical - going high

Sensor Number= 40 Event Direction/Type= 01

Event Data= 52 00 1A

Important:

v A single problem might cause several error messages. When this occurs, work to

correct the cause of the first error message. After you correct the cause of the first error message, the other error messages usually will not occur the next time you run the test.

v The management-module event log in your BladeCenter unit lists messages

according to the position of the blade server in the blade bays. If a blade server is moved from one bay to another, the management-module event log will report messages for that blade server using the new bay number; messages for that blade server that were generated before the move will still be listed using the previous bay number.

BMC log is limited in size. When the log is full, new entries will not overwrite

The existing entries; therefore, you must periodically clear the BMC log through the Configuration/Setup Utility program (the menu choices are described in the Installation and User’s Guide). When you are troubleshooting an error, be sure to clear the BMC log so that you can find current errors more easily.

Entries that are written to the BMC log during the early phase of POST show an incorrect date and time as the default time stamp; however, the date and time are corrected as POST continues.

Each BMC log entry appears on its own page. To display all the data for an entry, use the Up Arrow (↑) and Down Arrow (↓) keys or the Page Up and Page Down keys. To move from one entry to the next, select Get Next Entry or Get Previous

Entry.

22 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

The BMC log indicates an assertion event when an event has occurred. It indicates a deassertion event when the event is no longer occurring.

Some of the error codes and messages in the BMC log are abbreviated.

You can view the contents of the BMC log from the Configuration/Setup Utility program and from the diagnostic programs.

When you are troubleshooting PCI-X slots, note that the error logs report the PCI-X buses numerically. The numerical assignments vary depending on the configuration. You can check the assignments by running the Configuration/Setup Utility program (see the Installation and User’s Guide for more information).

Viewing the BMC log from the Configuration/Setup Utility program

For complete information about using the Configuration/Setup Utility program, see the Installation and User’s Guide.

To view the BMC log, complete the following steps:

1. Turn on the blade server.

2. When the prompt Press F1 for Configuration/Setup appears, press F1. If you

have set a power-on password, you must type the password and press Enter to start the Configuration/Setup Utility program.

3. Select Advanced Settings, select Baseboard Management Controller (BMC)

settings, and then select BMC System Event Log.

Viewing the BMC log from the diagnostic programs

The BMC log contains the same information, whether it is viewed from the Configuration/Setup Utility program or from the diagnostic programs.

For information about using the diagnostic programs, see “Running the diagnostic programs” on page 43.

To view the BMC log, complete the following steps:

1. If the blade server is running, turn off the blade server.

2. Turn on the blade server.

3. When the prompt F2 for Diagnostics appears, press F2.

4. From the top of the screen, select Hardware Info.

5. From the list, select BMC Log.

Chapter 2. Diagnostics 23

Checkout procedure

The checkout procedure is the sequence of tasks that you should follow to diagnose a problem in the blade server.

About the checkout procedure

Before performing the checkout procedure for diagnosing hardware problems, review the following information:

v Read the safety information that begins on page vii.

v The diagnostic programs provide the primary methods of testing the major

components of the blade server. If you are not sure whether a problem is caused by the hardware or by the software, you can use the diagnostic programs to confirm that the hardware is working correctly.

v When you run the diagnostic programs, a single problem might cause more than

one error message. When this happens, correct the cause of the first error message. The other error messages usually will not occur the next time you run the diagnostic programs.

Exception: If there are multiple error codes or light path diagnostics LEDs that

v If the blade server is halted and a POST error code is displayed, see “POST

error codes” on page 15. If the blade server is halted and no error message is displayed, see “Troubleshooting tables” on page 25 and “Solving undetermined problems” on page 56.

v For intermittent problems, check the error log; see “Error logs” on page 22 and

“Diagnostic programs, messages, and error codes” on page 42.

v If no LEDs are lit on the blade server front panel, verify the blade server status

and errors in the management-module Web interface; also see “Solving undetermined problems” on page 56.

v If device errors occur, see “Troubleshooting tables” on page 25.

Performing the checkout procedure

To perform the checkout procedure, complete the following steps:

1. If the blade server is running, turn off the blade server.

2. Turn on the blade server. Make sure that the blade server has control of the video (the keyboard/video/mouse button is lit). If the blade server does not start, see “Troubleshooting tables” on page 25.

3. Record any POST beep codes that sound or POST error messages that are displayed on the monitor. If an error is displayed, look up the first error in the “POST error codes” on page 15.

4. Check the control panel blade-error LED; if it is lit, check the light path diagnostics LEDs (see “Light path diagnostics” on page 38).

5. Check for the following results:

v Successful completion of POST, indicated by a single beep

v Successful completion of startup, indicated by a readable display of the

operating-system desktop

24 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

6. Did a single beep sound and are there readable instructions on the main menu?

v No: Find the failure symptom in “Troubleshooting tables”; if necessary, see

“Solving undetermined problems” on page 56.

v Yes: Run the diagnostic programs (see “Running the diagnostic programs” on

page 43).

– If you receive an error, see “Diagnostic error codes” on page 44.

– If the diagnostic programs were completed successfully and you still

suspect a problem, see “Solving undetermined problems” on page 56.

Troubleshooting tables

Use the troubleshooting tables to find solutions to problems that have identifiable symptoms. If these symptoms relate to shared BladeCenter unit resources, see “Solving shared BladeCenter resource problems” on page 52.

If you cannot find the problem in these tables, see “Running the diagnostic programs” on page 43 for information about testing the blade server.

If you have just added new software or a new optional device, and the blade server is not working, complete the following steps before using the troubleshooting tables:

1. Remove the software or device that you just added.

2. Run the diagnostic tests to determine whether the blade server is running correctly.

3. Reinstall the new software or new device.

General problems

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Symptom Action

A cover lock is broken, an LED is not working, or a similar problem has occurred.

If the part is a CRU, replace it. If the part is a FRU, the part must be replaced by a trained service technician.

Chapter 2. Diagnostics 25

Hard disk drive problems

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Symptom Action

Not all drives are recognized by the Fixed Disk or SAS Attached Disk diagnostic test.

The blade server stops responding during the Fixed Disk or SAS Attached Disk diagnostic test.

A hard disk drive passes the Fixed Disk or SAS Attached Disk diagnostics test, but the problem remains.

Remove the drive that is indicated by the diagnostic tests; then, run the Fixed Disk or SAS Attached Disk diagnostic test again. If the remaining drives are recognized, replace the drive that you removed with a new one.

Remove the hard disk drive that was being tested when the blade server stopped responding, and run the diagnostic test again. If the Fixed Disk or SAS Attached Disk diagnostic test runs successfully, replace the drive that you removed with a new one.

Run the SAS Fixed Disk or SAS Attached Disk diagnostic test again. If the diagnostics continue to pass but the drive continues to have a problem, replace the drive with a new one.

Intermittent problems

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Symptom Action

A problem occurs only occasionally and is difficult to diagnose.

1. Make sure that:

v When the blade server is turned on, air is flowing from the rear of the

BladeCenter unit at the blower grille. If there is no airflow, the blower is not working. This causes the blade server to overheat and shut down.

v The SAS hard disk drives are configured correctly.

Check the BMC log (see “Error logs” on page 22).

26 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

Keyboard or mouse problems

The keyboard and mouse are shared BladeCenter unit resources. First, make sure that the keyboard and mouse are assigned to the blade server; then, see the following table and “Solving shared BladeCenter resource problems” on page 52.

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Symptom Action

All keyboard and mouse problems.

1. Make sure that the keyboard/video/mouse select button LED on the front of the blade server is lit, indicating that the blade server is connected to the shared keyboard and mouse.

2. Check the function of the shared BladeCenter unit resources (see “Solving shared BladeCenter resource problems” on page 52).

3. Make sure that:

v The device drivers are installed correctly.

v The keyboard and mouse are recognized as USB, not PS/2, devices by the

blade server. Although the keyboard and mouse might be a PS/2-style devices, communication with them is through USB in the BladeCenter unit. Some operating systems allow you to select the type of keyboard and mouse during installation of the operating system. If this is the case, select USB.

(Trained service technician only) Replace the system board assembly.

Chapter 2. Diagnostics 27

Memory problems

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Symptom Action

The amount of system memory that is displayed is less than the amount of installed physical memory.

1. Make sure that:

v Yo u have installed the correct type of memory.

v If you changed the memory, you updated the memory configuration in the

Configuration/Setup Utility program.

v All banks of memory are enabled. The blade server might have automatically

disabled a memory bank when it detected a problem, or a memory bank might have been manually disabled.

Check BMC log for error message 289:

v If a DIMM was disabled by a system-management interrupt (SMI), replace

the DIMM.

v If a DIMM was disabled by the user or by POST, run the Configuration/Setup

Utility program and enable the DIMM.

Reseat the following components:

a. DIMMs

b. MPE unit (if one is installed)

Replace the following components one at a time, in the order shown, restarting

4. the blade server each time:

a. DIMMs

b. (Trained service technician only) MPE board assembly (if one is installed)

c. (Trained service technician only) System board assembly

Microprocessor problems

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Symptom Action

The blade server emits a continuous beep during POST, indicating that the startup (boot) microprocessor is not working correctly.

28 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

1. (Trained service technician only) Reseat microprocessor 1.

2. (Trained service technician only) Replace microprocessor 1.

Monitor or video problems

The video monitor is a shared BladeCenter unit resource. First, make sure that the video monitor is assigned to the blade server; then, see the following table and “Solving shared BladeCenter resource problems” on page 52.

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Symptom Action

The screen is blank.

The monitor has screen jitter, or the screen image is wavy, unreadable, rolling, or distorted.

Wrong characters appear on the screen.

1. Check the function of the shared BladeCenter unit resources (see “Solving shared BladeCenter resource problems” on page 52).

2. Make sure that:

v Damaged BIOS code is not affecting the video; see “Recovering from a

BIOS update failure” on page 50.

v The device drivers are installed correctly.

(Trained service technician only) Replace the system board assembly.

1. Check the function of the shared BladeCenter unit resources (see “Solving shared BladeCenter resource problems” on page 52).

2. (Trained service technician only) Replace the system board assembly.

1. If the wrong language is displayed, update the firmware or operating system with the correct language in the blade server that has ownership of the monitor.

2. Check the function of the shared BladeCenter unit resources (see “Solving shared BladeCenter resource problems” on page 52).

3. (Trained service technician only) Replace the system board assembly.

Chapter 2. Diagnostics 29

Network connection problems

The blade server connects to the network using shared BladeCenter unit resources. See the following table and “Solving shared BladeCenter resource problems” on page 52.

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Symptom Action

One or more blade servers are unable to communicate with the network.

1. Check the function of the shared BladeCenter unit resources (see “Solving shared BladeCenter resource problems” on page 52).

2. Make sure that:

v The correct device drivers are installed.

v The Ethernet controllers correctly configured.

v Optional I/O-expansion cards are correctly installed and configured.

(Trained service technician only) Replace the system board assembly.

Optional-device problems

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Symptom Action

An IBM optional device that was just installed does not work.

1. Make sure that:

v The device is designed for the blade server (see http://www.ibm.com/servers/

eserver/serverproven/compat/us/).

v Yo u followed the installation instructions that came with the device and the

device is installed correctly.

v Yo u have not loosened any other installed devices or cables.

v Yo u updated the configuration information in the Configuration/Setup Utility

program. Whenever memory or any other device is changed, you must update the configuration.

If the device comes with its own test instructions, use those instructions to test

2. the device.

3. Reseat the device that you just installed.

4. Replace the device that you just installed.

30 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

Power error messages

Power to the blade server is provided by shared BladeCenter unit resources. See the following table and “Solving shared BladeCenter resource problems” on page

52.

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Message Action

System Power Good fault

VRM Power Good fault

System over recommended voltage for +12v.

System over recommended voltage for +3.3v.

System over recommended 5V fault.

VRM voltage over recommended tolerance.

1. Reseat the blade server.

2. Check the function of the shared BladeCenter unit resources (see “Solving shared BladeCenter resource problems” on page 52).

3. Reseat the MPE unit (if one is installed).

4. Replace the following components one at a time, in the order shown, restarting the blade server each time:

a. (Trained service technician only) MPE board assembly (if one

is installed)\n

b. (Trained service technician only) System board assembly

1. Reseat the blade server.

2. Check the function of the shared BladeCenter unit resources (see “Solving shared BladeCenter resource problems” on page 52).

3. (Trained service technician only) Replace the system board assembly.

1. Reseat the blade server.

2. Check the function of the shared BladeCenter unit resources (see “Solving shared BladeCenter resource problems” on page 52).

3. (Trained service technician only) Replace the system board assembly.

1. Reseat the blade server.

2. Check the function of the shared BladeCenter unit resources (see “Solving shared BladeCenter resource problems” on page 52).

3. (Trained service technician only) Replace the system board assembly.

1. Reseat the blade server.

2. Check the function of the shared BladeCenter unit resources (see “Solving shared BladeCenter resource problems” on page 52).

3. (Trained service technician only) Replace the system board assembly.

1. Reseat the blade server.

2. Check the function of the shared BladeCenter unit resources (see “Solving shared BladeCenter resource problems” on page 52).

3. (Trained service technician only) Replace the system board assembly.

Chapter 2. Diagnostics 31

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Message Action

System under recommended voltage for +12v.

1. Reseat the blade server.

2. Check the function of the shared BladeCenter unit resources (see “Solving shared BladeCenter resource problems” on page 52).

3. (Trained service technician only) Replace the system board assembly.

System under recommended voltage for +3.3v.

1. Reseat the blade server.

2. Check the function of the shared BladeCenter unit resources (see “Solving shared BladeCenter resource problems” on page 52).

3. (Trained service technician only) Replace the system board assembly.

System under recommended 5V fault.

1. Reseat the blade server.

2. Check the function of the shared BladeCenter unit resources (see “Solving shared BladeCenter resource problems” on page 52).

3. (Trained service technician only) Replace the system board assembly.

32 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

Power problems

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Symptom Action

Power switch does not work, and the reset button does work.

The blade server does not turn on.

1. Reseat the control-panel connector.

2. Replace the following components one at a time, in the order shown, restarting the blade server each time:

a. Bezel assembly

b. (Trained service technician only) System board assembly

1. Check the function of the shared BladeCenter unit resources (see “Solving shared BladeCenter resource problems” on page 52).

2. Make sure that the power-on LED on the blade server control panel is flashing slowly.

v If the power LED is flashing rapidly and continues to do so, the blade server

is not communicating with the management-module; reseat the blade server and go to step 6

v If the power LED is off, the blade bay is not receiving power, the blade

server is defective, or the control panel is loose or defective.

Check the power-management policies in the operating system for the blade

3. server.

4. Reseat the blade server.

5. If you just installed a device in the blade server, remove it and restart the blade server. If the blade server now starts, you might have installed more devices than the power to that blade bay supports.

6. If you tried another blade server in the blade bay when checking the function of the shared BladeCenter unit resources and the other blade server worked, complete the following tasks on the blade server that was removed:

a. Reseat the following components:

1) MPE unit (if one is installed)

2) Control panel cable

Replace the following components one at a time, in the order shown,

restarting the blade server each time:

1) Blade server bezel assembly

2) (Trained service technician only) MPE board assembly (if one is installed)

3) (Trained service technician only) System board assembly

See “Solving undetermined problems” on page 56.

Chapter 2. Diagnostics 33

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Symptom Action

The blade server does not start and the following conditions are

Make sure that microprocessors 1 and 2 are identical (number of cores, cache size and type, clock speed, internal and external clock frequencies).

present:

v The amber system-error LED

on the BladeCenter unit system LED panel is lit.

(Trained service technician only) If microprocessors are not identical, remove the microprocessor with the incorrect specifications and replace with a microprocessor that has the correct specifications.

v The amber blade error LED

on the blade server control panel is lit.

v The management-module

event log contains the message Processor speed mismatch.

The blade server turns off for no apparent reason.

1. Check the function of the shared BladeCenter unit resources (see “Solving shared BladeCenter resource problems” on page 52).

2. (Trained service technician only) If the microprocessor error LED is lit, replace the microprocessor.

3. (Trained service technician only) Replace the system board assembly.

The blade server does not turn off.

1. Verify whether you are using an Advanced Configuration and Power Interface (ACPI) or non-ACPI operating system.

2. If you are using a non-ACPI operating system, complete the following steps:

a. Turn off the blade server by pressing the power-control button for 4

seconds.

b. If the blade server fails during POST and the power-control button does not

work, remove the blade server from the bay and reseat it.

If the problem remains or if you are using an ACPI-aware operating system,

3. complete the following steps:

a. Check the power-management policies in the operating system for the

blade server.

b. (Trained service technician only) Replace the system board assembly.

34 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

Removable-media drive problems

The removable-media (CD, DVD, or diskette) drives are shared BladeCenter unit resources. First, make sure that the drives are assigned to the blade server; then, see the following table and “Solving shared BladeCenter resource problems” on page 52.

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Symptom Action

All removable-media drive problems.

The CD or DVD drive is detected as /dev/sr0 by SUSE Linux. (If the SUSE Linux operating system is installed remotely onto a blade server that is not the current owner of the media tray [CD or DVD drive, diskette drive, and USB port], SUSE Linux detects the CD or DVD drive as /dev/sr0 instead of /dev/cdrom.)

The CD or DVD drive is not recognized after being switched back to the blade server running Windows® 2000 Advanced Server with SP3 applied. (When the CD or DVD drive owned by blade server x is switched to another blade server, then is switched back to blade server x, the operating system in blade server x no longer recognizes the CD or DVD drive. This happens when you have not safely stopped the drives before switching ownership of the media tray [CD or DVD drive, diskette drive, and USB port].)

1. Make sure that the media-tray select button LED on the front of the blade server is lit, indicating that the blade server is connected to the shared removable-media drives.

2. Check the function of the shared BladeCenter unit resources (see “Solving shared BladeCenter resource problems” on page 52).

3. Run the Configuration/Setup Utility program and make sure that the drive is enabled.

4. For CD or DVD problems, make sure that the correct device driver is installed.

5. Reseat the battery.

6. Replace the following components one at a time, in the order shown, restarting the blade server each time:

a. Battery.

b. (Trained service technician only) System board assembly

Establish a link between /dev/sr0 and /dev/cdrom as follows:

1. Enter the following command:

rm /dev/cdrom; ln -s /dev/sr0 /dev/cdrom

2. Insert the following line in the /etc/fstab file:

/dev/cdrom /media/cdrom auto ro,noauto,user,exec 0 0

Note: Because the BladeCenter unit uses USB to communicate with the media

tray devices, switching ownership of the media tray to another blade server is the same as disconnecting a USB device. Before you switch ownership of the CD or DVD drive (media tray) to another blade server, safely stop the media tray devices on the blade server that currently owns the media tray, as follows:

1. Double-click the Unplug/Eject Hardware icon in the Windows taskbar at the bottom right of the desktop.

2. Select USB Floppy and click Stop.

3. Select USB Mass Storage Device and click Stop.

4. Click Close.

You

can now safely switch ownership of the media tray to another blade server.

Chapter 2. Diagnostics 35

ServerGuide problems

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Symptom Action

The ServerGuide™ Setup and Installation CD will not start.

The operating-system installation program continuously loops.

The ServerGuide program will not start the operating-system CD.

The operating system cannot be installed; the option is not available.

1. Make sure that the CD or DVD drive is associated with the blade server that you are configuring.

2. Make sure that the blade server supports the ServerGuide program.

3. If the startup (boot) sequence settings have been changed, make sure that the CD or DVD drive is first in the startup sequence.

Make more space available on the hard disk.

Make sure that the operating-system CD is supported by the ServerGuide program. See the ServerGuide Setup and Installation CD label for a list of supported operating-system versions.

Make sure that the blade server supports the operating system. If it does, either no logical drive is defined (SAS RAID servers), or the ServerGuide System Partition is not present. Run the ServerGuide program and make sure that setup is complete.

Service processor problems

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Symptom Action

The management-module reports a general monitor failure.

Disconnect the BladeCenter unit from all electrical sources, wait for 30 seconds, reconnect the BladeCenter unit to the electrical sources, and restart the blade server. If the problem remains, see “Solving undetermined problems” on page 56, and the Hardware Maintenance Manual and Troubleshooting Guide or Problem

Determination and Service Guide for your BladeCenter unit.

36 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

Software problems

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Symptom Action

You suspect a software problem.

1. To determine whether the problem is caused by the software, make sure that:

v The blade server has the minimum memory that is needed to use the

software. For memory requirements, see the information that comes with the software.

Note: If you have just installed an adapter or memory, the blade server

might have a memory-address conflict.

v The software is designed to operate on the blade server. v Other software works on the blade server. v The software works on another server.

If you received any error messages when using the software, see the

2. information that comes with the software for a description of the messages and suggested solutions to the problem.

3. Contact your place of purchase of the software.

Universal Serial Bus (USB) port problems

The USB ports are shared BladeCenter unit resources. First, make sure that the USB ports are assigned to the blade server; then, see the following table and “Solving shared BladeCenter resource problems” on page 52.

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Symptom Action

A USB device does not work.

1. Check the function of the shared BladeCenter unit resources (see “Solving shared BladeCenter resource problems” on page 52).

2. Make sure that:

v The operating system supports USB devices. v The correct USB device driver is installed.

(Trained service technician only) Replace the system board assembly.

Chapter 2. Diagnostics 37

Light path diagnostics

Light path diagnostics is a system of LEDs on the control panel and on various internal components of the blade server. When an error occurs, LEDs can be lit throughout the blade server to help identify the source of the error.

After you remove the blade server, you can press and hold the light path diagnostics switch for a maximum of 25 seconds to light the LEDs and locate the failing component. The following components have this feature:

v Hard disk drives

v Light path diagnostics panel

v Microprocessors

v Memory modules (DIMMs)

Viewing the light path diagnostics LEDs

Before working inside the blade server to view light path diagnostics LEDs, read the safety information that begins on page vii and “Handling static-sensitive devices” on page 64.

If an error occurs, view the light path diagnostics LEDs in the following order:

1. Look at the control panel on the front of the blade server (see “Blade server controls and LEDs” on page 4).

v If the information LED is lit, it indicates that information about a suboptimal

condition in the blade server is available in the BMC log or in the management-module event log.

v If the blade-error LED is lit, it indicates that an error has occurred; go to step

To view the light path diagnostics panel and LEDs, complete the following steps:

a. Remove the blade server from the BladeCenter unit.

b. Place the blade server on a flat, static-protective surface.

c. Remove the cover from the blade server.

d. Press and hold the light path diagnostics switch to light the LEDs of the

failing components in the blade server. The LEDs will remain lit for as long as you press the switch, to a maximum of 25 seconds.

38 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

The following illustration shows the locations of the blade server system-board error LEDs and light path diagnostics panel.

Microprocessor 1 error LED

DIMM 4 error LED DIMM 3 error LED DIMM 2 error LED DIMM 1 error LED

Light path diagnostics panel

SAS hard disk drive error LED

DIMM 8 error LED DIMM 7 error LED

Microprocessor 2 error LED

DIMM 6 error LED DIMM 5 error LED

The following illustration shows the LEDs on the blade server system-board light path diagnostics panel.

NMI

MIS S BRD

TEMP

LP 1

NMI error LED

Microprocessor mismatch error LED

System-board error LED

Over temperature error LED

Light path diagnostics LED

Light path diagnostics switch

Chapter 2. Diagnostics 39

The following illustration shows the locations of the MPE-unit error LEDs and light path diagnostics panel.

Microprocessor 1 error LED

DIMM 4 error LED DIMM 3 error LED DIMM 2 error LED DIMM 1 error LED

Light path diagnostics panel

SAS hard disk drive error LED

DIMM 8 error LED DIMM 7 error LED DIMM 6 error LED DIMM 5 error LED

Microprocessor 2 error LED

The following illustration shows the LEDs on the MPE unit light path diagnostics panel.

MIS

S BRD

LP 1

LP 2

Microprocessor mismatch error LED

MPE-board error LED

Light path diagnostics LED (for blade server)

Light path diagnostics LED (for MPE)

Light path diagnostics switch

When you press the light path diagnostics switch, note which LEDs are lit on the blade server system board, MPE unit, and light path diagnostics panels. Using this information and the information in “Light path diagnostics LEDs” on page 41 can often provide enough information to diagnose the error.

40 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

Light path diagnostics LEDs

The following table describes the LEDs on the light path diagnostics panels, on the blade server system board, and on the MPE unit. It also lists suggested actions to correct the detected problems.

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Lit light path diagnostics LED Description Action

None An error has occurred and cannot be isolated,

or the service processor has failed.

DIMM x error

v On the blade server system board: A

blade-server DIMM error has occurred.

v On the MPE unit: An MPE unit DIMM error

has occurred.

LP1

v On the blade server light path diagnostics

panel: The light path LEDs on the blade server system board have power.

v On the MPE unit light path diagnostics

panel: An error occurred on the blade server system board.

LP2 (on MPE unit

Light path LEDs on the MPE unit have power. Check for lit error LEDs on the MPE unit.

only)

Microprocessor x error

v On the blade server system board:

Blade-server microprocessor x has failed.

v On the MPE unit: MPE unit microprocessor

x has failed.

MIS (Microprocessor mismatch)

v On the blade server light path diagnostics

panel: The blade-server microprocessors do not match.

v On the MPE unit light path diagnostics

panel: The MPE unit microprocessors do not match.

1. Make sure that the light path diagnostics LED is lit to ensure that there is enough power in the blade server to light the rest of the LEDs.

2. Check the BMC log for information about an error that is not represented by a light path diagnostics LED.

1. Make sure that DIMM x is supported.

2. Reseat DIMM x.

3. Replace DIMM x.

Multiple DIMM LEDs do not necessarily

Note:

indicate multiple DIMM failures. If more than one DIMM LED is lit, reseat or replace one DIMM at a time until the error is corrected.

Remove the MPE unit (if one is installed) and check for lit error LEDs on the blade server system board.

1. (Trained service technician only) Reseat microprocessor x.

2. (Trained service technician only) Replace microprocessor x.

Make sure that microprocessors 1 and 2 are identical (number of cores, cache size and type, clock speed, internal and external clock frequencies, and wattage); also, see “Troubleshooting tables” on page 25.

Chapter 2. Diagnostics 41

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Lit light path diagnostics LED Description Action

NMI (NMI error) The system board has failed.

1. Replace the blade server cover and reinsert the blade server in the BladeCenter unit; then, restart the blade server. Check the BMC log for information about the error.

2. (Trained service technician only) Replace the system board assembly.

S BRD (System board or MPE board error)

The system board or MPE board has failed.

v (Trained service technician only) If lit LED is

on the blade server light path diagnostics panel, replace the system board assembly.

v (Trained service technician only) If lit LED is

on the MPE unit light path diagnostics panel, replace the MPE board assembly.

TEMP (Over temperature error)

The system temperature has exceeded a threshold level.

1. Check the function of the shared BladeCenter unit resources (see “Solving shared BladeCenter resource problems” on page 52).

2. Make sure that the room temperature is not too high. See “Features and specifications” on page 3 for temperature information.

SAS hard disk drive error

v On the blade server system board: A

blade-server hard disk drive has failed.

v On the MPE unit: An MPE unit hard disk

drive has failed.

Run the SAS Fixed Disk or SAS Attached Disk diagnostic test. If the diagnostics pass but the drive continues to have a problem, replace the hard disk drive with a new one.

Diagnostic programs, messages, and error codes

The diagnostic programs are the primary method of testing the major components of the blade server. As you run the diagnostic programs, text messages and error codes are displayed on the screen and are saved in the test log. A diagnostic text message or error code indicates that a problem has been detected; to determine what action you should take as a result of a message or error code, see the table in “Diagnostic error codes” on page 44.

If you cannot find the problem using the diagnostic programs, see “Solving undetermined problems” on page 56 for information about testing the blade server.

42 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

Running the diagnostic programs

To run the diagnostic programs, complete the following steps:

1. If the blade server is running, turn off the blade server.

2. Turn on the blade server.

3. When the prompt F2 for Diagnostics appears, press F2.

4. From the top of the screen, select either Extended or Basic.

5. From the menu, select the test that you want to run, and follow the instructions on the screen.

For help with the diagnostic programs, press F1. You also can press F1 from within a help screen to obtain online documentation from which you can select different categories. To exit from the help information, press Esc.

To determine what action you should take as a result of a diagnostic text message or error code, see the table in “Diagnostic error codes” on page 44.

If the diagnostic programs do not detect any hardware errors but the problem remains during normal server operations, a software error might be the cause. If you suspect a software problem, see the information that comes with your software.

A single problem might cause more than one error message. When this happens, correct the cause of the first error message. The other error messages usually will not occur the next time you run the diagnostic programs.

Exception: If there are multiple error codes or light path diagnostics LEDs that

If the blade server stops during testing and you cannot continue, restart the blade server and try running the diagnostic programs again. If the problem remains, replace the component that was being tested when the blade server stopped.

The diagnostic programs assume that a keyboard and mouse are attached to the BladeCenter unit and that the blade server controls them. If you run the diagnostic programs with either no mouse or a mouse attached to the BladeCenter unit that is not controlled by the blade server, you cannot use the Next Cat and Prev Cat buttons to select categories. All other mouse-selectable functions are available through function keys.

To view server configuration information such as system configuration, memory contents, interrupt request (IRQ) use, direct memory access (DMA) use, or device drivers, select Hardware Info from the top of the screen.

Diagnostic text messages

Diagnostic text messages are displayed while the tests are running. A diagnostic text message contains one of the following results:

Passed: The test was completed without any errors.

Failed: The test detected an error.

User Aborted: Yo u stopped the test before it was completed.

Chapter 2. Diagnostics 43

Not Applicable: Yo u attempted to test a device that is not present in the blade

server.

Aborted: The test could not proceed because of the blade server configuration.

Warning: The test could not be run. There was no failure of the hardware that was

being tested, but there might be a hardware failure elsewhere, or another problem prevented the test from running; for example, there might be a configuration problem, or the hardware might be missing or is not being recognized.

The result is followed by an error code or other additional information about the error.

Viewing the test log

To view the test log when the tests are completed, select Utility from the top of the screen and then select View Test Log. The test-log data is maintained only while you are running the diagnostic programs. When you exit from the diagnostic programs, the test log is cleared.

To save the test log to a file on a diskette or to the hard disk, select Save Log on the diagnostic programs screen and specify a location and name for the saved log file.

Note: To save the test log to a diskette, you must use a diskette that you have

formatted yourself; this function does not work with preformatted diskettes. If the diskette has sufficient space for the test log, the diskette can contain other data.

Diagnostic error codes

The following table describes the error codes that the diagnostic programs might generate and suggested actions to correct the detected problems.

If the diagnostic programs generate error codes that are not listed in the table, make sure that the latest level of the BIOS code is installed.

In the error codes, x can be any numeral or letter. However, if the three-digit number in the central position of the code is 000, 195, or 197, do not replace a CRU or FRU. These numbers appearing in the central position of the code have the following meanings:

000 The blade server passed the test. Do not replace a CRU or FRU.

195 The Esc key was pressed to end the test. Do not replace a CRU or FRU.

197 This is a warning error, but it does not indicate a hardware failure; do not

replace a CRU or FRU. Take the action that is indicated in the Action column, but do not replace a CRU or a FRU. See the description for

Warning in the section “Diagnostic text messages” on page 43 for more

information.

44 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Error code Description Action

001-197-000 001-198-000

Test aborted.

1. Check the test log for messages indicating the cause of the error, and take the indicated action.

2. Restart the server.

3. Run the diagnostic test again.

4. Run the Quick Memory Test All Banks diagnostic; then, if an error is detected, take the indicated action

5. Reinstall the blade server in the BladeCenter unit and, if necessary, update the BIOS code on the server; then, rerun the test (see “Firmware updates” on page 97).

001-250-00n ECC Test logic Failed. See PC Doctor logs.

Note: n = Failing CPU. (1 – 4)

1. Restart the server.

2. Run the diagnostic test again.

3. (Trained service technician only) Replace the failing microprocessor.

001-250-000 Failed processor board ECC.

1. Reseat the following components:

a. DIMMs

b. (Trained service technician only)

Microprocessor 1

c. (Trained service technician only)

Microprocessor 2

Replace the following components one at a time,

2. in the order shown, restarting the blade server each time:

a. DIMMs

b. (Trained service technician only)

Microprocessor 1

c. (Trained service technician only)

Microprocessor 2

d. (Trained service technician only) System

board assembly

001-292-000 Core system: failed/CMOS checksum failed. Load the BIOS default settings by using the

Configuration/Setup Utility program and run the test again (see the Installation and User’s Guide for your blade server).

001-xxx-000 Failed core tests. (Trained service technician only) Replace the system

board assembly.

001-xxx-001 Failed core tests. (Trained service technician only) Replace the system

board assembly.

005-xxx-000 Failed video test. (Trained service technician only) Replace the system

board assembly.

030-xxx-000 Failed internal SAS interface test. (Trained service technician only) Replace the system

board assembly.

Chapter 2. Diagnostics 45

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Error code Description Action

035-xxx-099 No adapters were found. Reseat the adapter (if installed).

075-xxx-000 Failed power supply test. Replace the power supply (see the Hardware

Maintenance Manual and Troubleshooting Guide or Problem Determination and Service Guide for your

BladeCenter unit).

089-xxx-00n Failed microprocessor test.

1. Reseat the following components:

a. (Trained service technician only) Blade server

microprocessor 1 if n = 0 or 1

b. (Trained service technician only) Blade server

microprocessor 2 if n = 2 or 3

c. (Trained service technician only) MPE unit

microprocessor 1 if n = 4 or 5

d. (Trained service technician only) MPE unit

microprocessor 2 if n = 6 or 7

Replace the following components one at a time,

2. in the order shown, restarting the blade server each time:

a. (Trained service technician only) Blade server

microprocessor 1 if n = 0 or 1

b. (Trained service technician only) Blade server

microprocessor 2 if n = 2 or 3

c. (Trained service technician only) MPE unit

microprocessor 1 if n = 4 or 5

d. (Trained service technician only) MPE unit

microprocessor 2 if n = 6 or 7

165-060-000 Service Processor: ASM may be busy

1. Rerun the diagnostics test.

2. Correct other error conditions that might be keeping the Advanced System Management (ASM) network or components busy. See the error log and diagnostic panel.

3. Turn off the blade server and reseat it in the BladeCenter unit.

4. (Trained service technician only) Replace the system board assembly.

165-198-000 Service Processor: Aborted

1. Rerun the diagnostic test.

2. Correct other error conditions that might be keeping the Advanced System Management (ASM) network or components busy. See the error log and diagnostic panel.

3. Turn off the blade server and reseat it in the BladeCenter unit.

4. (Trained service technician only) Replace the system board assembly.

46 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Error code Description Action

165-201-000 Service Processor: Failed

1. Power down blade server and reseat it in the chassis.

2. (Trained service technician only) Replace the system board assembly.

165-330-000 Service Processor: Failed Update the ROM diagnostic to the latest level and

run the diagnostics again.

165-342-000 Service Processor: Failed

1. Make sure that the latest firmware levels for Advanced System Management (ASM) and BIOS are installed.

2. Turn off the blade server and reseat it in the BladeCenter unit.

3. (Trained service technician only) Replace the system board assembly.

166-198-00x System Management: Aborted.

1. Remove the blade server from the BladeCenter unit, wait 30 seconds, and reseat it in the BladeCenter unit; then, run the test again.

2. Update the BMC firmware and run the test again.

3. (Trained service technician only) Replace the system board assembly.

166-403-001 System Management: Failed. (BMC

indicates failure in I2C bus test.)

1. Remove the blade server from the BladeCenter unit, wait 30 seconds, and reseat it in the BladeCenter unit; then, run the test again.

2. Update the BMC firmware and run the test again.

3. Update the Ethernet firmware and run the test again.

4. (Trained service technician only) Replace the system board assembly.

166-419-001 System Management: Failed. (BMC

indicates failure in I2C bus test.)

1. Remove the blade server from the BladeCenter unit, wait 30 seconds, and reseat it in the BladeCenter unit; then, run the test again.

2. Update the BMC firmware and run the test again.

3. Remove the MPE unit and run the test again. (Trained service technician only) If the error does not repeat, replace the MPE board assembly.

4. (Trained service technician only) Replace the system board assembly.

Chapter 2. Diagnostics 47

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Error code Description Action

166-420-001 System Management: Failed. (BMC

indicates failure in I2C bus test.)

1. Remove the blade server from the BladeCenter unit, wait 30 seconds, and reseat it in the BladeCenter unit; then, run the test again.

2. Update the BMC firmware and run the test again.

3. Remove the BladeCenter Storage Expansion Unit 3 and run the test again. If the error does not repeat, replace the BladeCenter Storage Expansion Unit 3.

4. (Trained service technician only) Replace the system board assembly.

166-421-001 System Management: Failed. (BMC

indicates failure in I2C bus test.)

1. Remove the blade server from the BladeCenter unit, wait 30 seconds, and reseat it in the BladeCenter unit; then, run the test again.

2. Update the BMC firmware and run the test again.

3. Remove the high-speed expansion card (if one is installed) and run the test again. If the error does not repeat, replace the high-speed expansion card.

4. (Trained service technician only) Replace the system board assembly.

166-422-001 System Management: Failed. (BMC

indicates failure in I2C bus test.)

1. Remove the blade server from the BladeCenter unit, wait 30 seconds, and reseat it in the BladeCenter unit; then, run the test again.

2. Update the BMC firmware and run the test again.

3. Remove the I/O-expansion card and run the test again. If the error does not repeat, replace the I/O-expansion card.

4. (Trained service technician only) Replace the system board assembly.

166-nnn-001 System Management: Failed. BMC indicates

failure in self test.

Note:

v nnn = 300 to 320

v nnn = 400 to 424 (excluding 403 and 419

to 422)

1. Remove the blade server from the BladeCenter unit, wait 30 seconds, and reseat it in the BladeCenter unit; then, run the test again.

2. Update the BMC firmware and run the test again.

3. (Trained service technician only) Replace the system board assembly.

180-xxx-000 Diagnostics LED failure. Run the LED test in the diagnostics program.

180-xxx-001 Failed front LED panel test.

1. Reseat the control-panel connector.

2. Replace the bezel assembly.

3. (Trained service technician only) Replace the system board assembly.

180-xxx-002 Failed diagnostics LED panel test. (Trained service technician only) Replace the system

board assembly.

48 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Error code Description Action

180-xxx-003 Failed system board LED test. (Trained service technician only) Replace the system

board assembly.

201-198-xxx Memory test aborted. See PC Doctor logs.

1. Restart the server.

2. Run the diagnostic test again.

3. Reinstall the diagnostic program.

4. Refer to the error log for additional information.

201-199-xxx Unexpected error. Test aborted. See PC

Doctor logs.

1. Restart the server.

2. Run the diagnostic test again.

3. Reinstall the diagnostic program.

4. Refer to the error log for additional information.

201-xxx-PBD Test failed.

v P = CPU Number (1 – 4)

v B = Failing Bank/Pair number.

v D = Failing DIMM number within Failing

CPU # P.

v D = 9 = Both DIMMs in the failing

1. Reseat the failing DIMM(s); then; run the memory diagnostic test again.

2. Replace the failing DIMM(s); then; run the memory diagnostic test again.

3. (Trained service technician only) Replace the system board assembly.

bank/pair of DIMMs.

202-xxx-00n Failed system cache test.

1. (Trained service technician only) Reseat microprocessor n.

2. Replace the following components one at a time, in the order shown, restarting the blade server each time:

a. (Trained service technician only)

Microprocessor n

b. (Trained service technician only) MPE board

assembly (if microprocessor n is on the MPE unit)

c. (Trained service technician only) System

board assembly (if microprocessor n is on the blade server)

217-198-xxx Could not establish drive parameters.

1. Reseat hard disk drive x.

2. Update the BIOS code.

3. Replace the following components one at a time, in the order shown, restarting the blade server each time:

a. Hard disk drive x

b. (Trained service technician only) System

board assembly

217-xxx-000 Failed hard disk drive test.

Note: If RAID is configured, the SAS

Attached Disk number refers to the RAID

1. Reseat hard disk drive 1.

2. Replace hard disk drive 1.

logical drive.

Chapter 2. Diagnostics 49

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs

and which components are FRUs.

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Error code Description Action

217-xxx-001 Failed hard disk drive test.

Note: If RAID is configured, the SAS

Attached Disk number refers to the RAID

1. Reseat hard disk drive 2.

2. Replace hard disk drive 2.

logical drive.

405-xxx-000 Failed Ethernet test on controller on the

system board.

1. Make sure that Ethernet is not disabled in the Configuration/Setup Utility program.

2. (Trained service technician only) Replace the system board assembly.

Recovering from a BIOS update failure

The blade server has an advanced recovery feature that will automatically switch to a backup BIOS page if the BIOS code in the blade server has become damaged, such as from a power failure during an update.

The flash memory of the blade server consists of a primary page and a backup page. If the BIOS code in the primary page is damaged, the baseboard management controller will detect the error and automatically switch to the backup page to start the blade server. If this happens, a POST message Booted from

backup POST/BIOS image is displayed. The backup page version may not be the

same version as the primary image.

You can then recover or restore the original primary page BIOS by using a BIOS flash diskette.

To recover the BIOS code and restore the blade server operation to the primary page, complete the following steps:

1. Download the latest version of the BIOS code from http://www.ibm.com/ bladecenter/.

2. Update the BIOS code, following the instructions that come with the update file that you downloaded. This will automatically restore and update the primary page.

3. Restart the blade server.

If that procedure fails, the blade server might not restart correctly or might not display video. To manually restore the BIOS code, complete the following steps:

1. Read the safety information that begins on page vii and “Handling static-sensitive devices” on page 64.

2. Turn off the blade server.

3. Remove the blade server from the BladeCenter unit (see “Removing the blade server from a BladeCenter unit” on page 65).

4. Remove the cover (see “Removing the blade server cover” on page 68).

5. If an MPE unit is installed, remove the MPE unit (see “Removing an expansion unit” on page 70).

50 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

6. Locate switch block SW4 on the system board (see “System board switches” on page 8).

7. Move the BIOS backup page switch (SW4-2) to the Closed position to enable the backup page.

8. Install the MPE unit, if one was removed to access SW4 (see “Installing an expansion unit” on page 71).

9. Install the cover and reinstall the blade server in the BladeCenter unit, making sure that the blade server is connected to the media tray.

10. Insert the BIOS flash diskette into the diskette drive.

11. Turn on the blade server. The system begins the power-on self-test (POST).

12. Select 1 - Update POST/BIOS from the menu that contains various flash

(update) options.

Attention: Do not type Y when you are prompted to back up the ROM

location; doing so causes the damaged BIOS to be copied into the backup page.

13. When you are prompted whether you want to move the current POST/BIOS image to the backup ROM location, type N.

14. When you are prompted whether you want to save the current code to a diskette, type N.

15. Select Update the BIOS.

Attention: Do not restart the blade server at this time.

16. When the update is complete, remove the flash diskette from the diskette drive.

17. Turn off the blade server and remove it from the BladeCenter unit (see “Removing the blade server from a BladeCenter unit” on page 65).

18. Remove the cover of the blade server (see “Removing the blade server cover” on page 68).

19. If an MPE unit is installed, remove the MPE unit (see “Removing an expansion unit” on page 70).

20. Move switch SW4-2 to the Open position to return to the normal startup mode.

21. Install the MPE unit, if one was removed to access SW4 (see “Installing an expansion unit” on page 71).

22. Install the cover and reinstall the blade server in the BladeCenter unit.

23. Turn on the blade server.

Service processor (BMC) error codes

The baseboard management controller (BMC) log contains up to 512 of the most recent service processor errors in IPMI format. These messages are a combination of plain text and error code numbers. You can view the BMC log from the Configuration/Setup Utility menu by selecting Advanced Setup → Baseboard Management Controller (BMC) Settings → BMC System Event Log.

You can view additional information and error codes in plain text by viewing the management-module event log in your BladeCenter unit.

Chapter 2. Diagnostics 51

Solving SAS hard disk drive problems

For any SAS error message, one or more of the following devices might be causing the problem:

v A failing SAS device (adapter, drive, or controller)

v An improper SAS configuration

any SAS error message, make sure that the SAS devices are configured

For correctly.

Solving shared BladeCenter resource problems

Problems with BladeCenter shared resources might appear to be in the blade server. The following sections provide procedures to help you isolate blade server problems from shared BladeCenter resource problems. If the problem is thought to be with a shared resource, see the Problem Determination and Service Guide or the Hardware Maintenance Manual and Troubleshooting Guide for your BladeCenter unit and other BladeCenter component documentation for additional information. If the problem cannot be solved, see “Solving undetermined problems” on page 56.

To check the general function of shared BladeCenter resources, complete the following operations:

v Make sure that:

– The BladeCenter unit has the required power modules installed and is

connected to a working power source.

– Power management has been correctly set for your BladeCenter unit

configuration.

Check if the problem is being experienced with more than one blade server.

Perform a test of the function on a known-good blade server.

v Try the blade server in a different blade bay.

v Try a known-good blade server in the blade bay.

Keyboard or mouse problems

To check for keyboard or mouse problems, complete the following steps until the problem is solved:

1. Make sure that:

v Both the blade server and the monitor are turned on. v The keyboard/video/mouse select button LED on the front of the blade server

is lit, indicating that the blade server is connected to the shared keyboard and mouse.

v The keyboard or mouse cable is securely connected to the active

BladeCenter management-module.

v The keyboard or mouse works with another blade server.

Check for correct management-module operation (see the documentation for

2. your BladeCenter unit).

Note: Some BladeCenter unit types have several management-module

components that might need to be tested or replaced (see the Installation Guide for your management module for more information).

52 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

3. Replace the keyboard or mouse.

4. Replace the management module (see the documentation for your BladeCenter unit).

If these steps do not resolve the problem, it is likely a problem with the blade server. See “Keyboard or mouse problems” on page 27.

Media tray problems

To check for problems with the media tray (removable media drives and USB ports), complete the following steps until the problem is solved:

1. Make sure that:

v The media-tray select button LED on the front of the blade server is lit,

v The media tray devices work with another blade server.

Check if the problem affects more than one media tray component:

v USB ports v Diskette drive v CD or DVD drive

For problems affecting only a USB port:

a. Make sure that the USB device is operational. If using a USB hub, make

b. Reseat the following components:

Replace the following components one at a time, in the order shown,

Continue with step 7.

4. For problems affecting only the diskette drive:

a. If there is a diskette in the drive, make sure that:

Continue with step 6.

indicating that the blade server is connected to the shared media tray.

sure that the hub is operating correctly and that any software that the hub requires is installed. Plug the USB device directly into the USB port, bypassing the hub, to check its operation.

1) USB device cable

2) Media tray cable (if applicable)

3) Media tray

restarting the blade server each time:

1) USB cable (if applicable)

2) Media tray cable (if applicable)

3) Media tray

v The diskette is inserted correctly in the drive. v The diskette is good and not damaged; the drive LED light flashes once

per second when the diskette is inserted. (Try another diskette if you have one.)

v The diskette contains the necessary files to start the blade server. v The software program is working properly. v The distance between monitors and diskette drives is at least 76 mm (3

in.).

Chapter 2. Diagnostics 53

5. For problems affecting only the CD or DVD drive:

a. Make sure that:

v The CD or DVD is inserted correctly in the drive. If necessary, insert the

end of a straightened paper clip into the manual tray-release opening to eject the CD or DVD. The drive LED light flashes once per second when the CD or DVD is inserted.

v The CD or DVD is clean and not damaged. (Try another CD or DVD if

you have one.)

v The software program is working properly.

b. Continue with step 6.

For problems affecting one or more of the removable media drives:

a. Reseat the following components:

1) Removable-media drive cable (if applicable)

2) Removable-media drive

3) Media tray cable (if applicable)

4) Media tray

Replace the following components one at a time, in the order shown,

restarting the blade server each time:

1) Removable-media drive cable (if applicable)

2) Media tray cable (if applicable)

3) Removable-media drive

4) Media tray

Continue with step 7.

7. Check for correct management-module operation (see the documentation for your BladeCenter unit).

Note: Some BladeCenter unit types have several management-module

components that might need to be tested or replaced (see the Installation Guide for your management module for more information).

8. Replace the management module (see the documentation for your BladeCenter unit).

If these steps do not resolve the problem, it is likely a problem with the blade server. See “Removable-media drive problems” on page 35 or “Universal Serial Bus (USB) port problems” on page 37.

Network connection problems

To check for network connection problems, complete the following steps until the problem is solved:

1. Make sure that:

v The network cables are securely connected to the I/O module. v Power configuration of the BladeCenter unit supports the I/O module

configuration.

v Installation of the I/O-module type is supported by the BladeCenter unit and

blade server hardware.

v The I/O modules for the network interface that is being used are installed in

the correct BladeCenter bays, and are configured and operating correctly.

v The settings in the I/O module are correct for the blade server (settings in the

I/O module are specific to each blade server).

Check for correct I/O-module operation; troubleshoot and replace the I/O

2. module as indicated in the documentation for the I/O module.

54 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

Power problems

3. Check for correct management-module operation (see the documentation for your BladeCenter unit).

Note: Some BladeCenter unit types have several management-module

components that might need to be tested or replaced (see the Installation Guide for your management module for more information).

4. Replace the management module (see the documentation for your BladeCenter unit).

If these steps do not resolve the problem, it is likely a problem with the blade server. See “Network connection problems” on page 30.

To check for power problems, make sure that:

v The LEDs on all the BladeCenter power modules are lit.

v Power is being supplied to the BladeCenter unit.

v Installation of the blade server type is supported by the BladeCenter unit.

v The BladeCenter unit has the correct power configuration to operate the blade

bay where your blade server is installed (see the documentation for your BladeCenter unit).

v The BladeCenter unit power management configuration and status support blade

server operation (see the Management Module User’s Guide or the Management Module Command-Line Interface Reference Guide for information).

v Local power control for the blade server is correctly set (see the Management

Module User’s Guide or the Management Module Command-Line Interface Reference Guide for information).

v The BladeCenter unit blowers are correctly installed and operational.

Video problems

If these operations do not solve the problem, it is likely a problem with the blade server. See “Power error messages” on page 31 and “Power problems” on page 33.

To check for video problems, complete the following steps until the problem is solved:

1. Make sure that:

v Both the blade server and the monitor are turned on, and that the monitor

brightness and contrast controls are correctly adjusted.

v The keyboard/video/mouse select button LED on the front of the blade server

is lit, indicating that the blade server is connected to the shared BladeCenter monitor.

v The video cable is securely connected to the BladeCenter

management-module. Non-IBM monitor cables might cause unpredictable problems.

v The monitor works with another blade server.

Chapter 2. Diagnostics 55

v Some IBM monitors have their own self-tests. If you suspect a problem with

the monitor, see the information that comes with the monitor for instructions for adjusting and testing the monitor. If the monitor self-tests show that the monitor is working correctly, consider the location of the monitor. Magnetic fields around other devices (such as transformers, appliances, fluorescent lights, and other monitors) can cause screen jitter or wavy, unreadable, rolling, or distorted screen images. If this happens, turn off the monitor.

Attention: Moving a color monitor while it is turned on might cause screen

discoloration.

Move the device and the monitor at least 305 mm (12 in.) apart. Turn on the monitor. To prevent diskette drive read/write errors, make sure that the distance between the monitor and any diskette drive is at least 76 mm (3 in.).

Check for correct management-module operation (see the documentation for

2. your BladeCenter unit).

Note: Some BladeCenter unit types have several management-module

components that might need to be tested or replaced (see the Installation Guide for your management module for more information).

3. Replace the monitor cable, if applicable.

4. Replace the monitor.

5. Replace the management module (see the documentation for your BladeCenter unit).

If these steps do not resolve the problem, it is likely a problem with the blade server. See “Monitor or video problems” on page 29.

Solving undetermined problems

Note: When you are diagnosing a problem in the blade server, you must determine

whether the problem is in the blade server or in the BladeCenter unit.

v If all of the blade servers have the same symptom, the problem is probably in the

BladeCenter unit. For more information, see the Hardware Maintenance Manual and Troubleshooting Guide or Problem Determination and Service Guide for your

BladeCenter unit.

v If the BladeCenter unit contains more than one blade server and only one of the

blade servers has the problem, troubleshoot the blade server that has the problem.

the diagnostic tests did not diagnose the failure or if the blade server is

If inoperative, use the information in this section.

If you suspect that a software problem is causing failures (continuous or intermittent), see “Software problems” on page 37.

Damaged data in CMOS memory or damaged BIOS code can cause undetermined problems. To reset the CMOS data, remove and replace the battery to override the power-on password and clear the CMOS memory; see “Removing the battery” on page 84. If you suspect that the BIOS code is damaged, see “Recovering from a BIOS update failure” on page 50.

56 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

Check the LEDs on all the power supplies of the BladeCenter unit in which the blade server is installed. If the LEDs indicate that the power supplies are working correctly and reseating the blade server does not correct the problem, complete the following steps:

1. Make sure that the control panel connector is correctly seated on the system board (see “System board connectors” on page 7 for the location of the connector).

2. If no LEDs on the control panel are working, replace the bezel assembly; then, try to turn on the blade server from the management module (see the documentation for the BladeCenter unit and management module for more information).

3. Turn off the blade server.

4. Remove the blade server from the BladeCenter unit and remove the cover.

5. Remove or disconnect the following devices, one at a time, until you find the failure. Reinstall, turn on, and reconfigure the blade server each time.

v MPE unit (if one is installed) v I/O-expansion cards v Hard disk drive v Memory modules. The minimum configuration requirement is 1 GB (two 512

MB DIMMs on the system board).

The following minimum configuration is required for the blade server to start:

v System board assembly v One microprocessor v Two 512 MB DIMMs v A functioning BladeCenter unit

6. Install and turn on the blade server. If the problem remains, suspect the following components in the following order: a. DIMM b. System board assembly c. Microprocessor

the problem is solved when you remove an I/O-expansion card from the blade

If server but the problem recurs when you reinstall the same card, suspect the I/O-expansion card; if the problem recurs when you replace the card with a different one, suspect the system board.

If you suspect a networking problem and the blade server passes all the system tests, suspect a network cabling problem that is external to the system.

Chapter 2. Diagnostics 57

Calling IBM for service

See Appendix A, “Getting help and technical assistance,” on page 101 for information about calling IBM for service.

When you call for service, have as much of the following information available as possible:

v Machine type and model

v Microprocessor and hard disk drive upgrades

v Failure symptoms

– Does the blade server fail the diagnostic programs? If so, what are the error

codes?

– What occurs? When? Where?

– Is the failure repeatable?

– Has the current server configuration ever worked?

– What changes, if any, were made before it failed?

– Is this the original reported failure, or has this failure been reported before?

Diagnostic program type and version level

v Hardware configuration (print screen of the system summary)

v BIOS code level

v Operating-system type and version level

can solve some problems by comparing the configuration and software setups

You between working and nonworking servers. When you compare servers to each other for diagnostic purposes, consider them identical only if all the following factors are exactly the same in all the blade servers:

v Machine type and model

v BIOS level

v Adapters and attachments, in the same locations

v Address jumpers, terminators, and cabling

v Software versions and levels

v Diagnostic program type and version level

v Configuration option settings

v Operating-system control-file setup

58 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

Chapter 3. Parts listing, Types 7971 and 7972

The following replaceable components are available for the LS21 Type 7971 and LS41 Type 7972 blade servers.

Note: The illustrations in this document might differ slightly from your hardware.

Replaceable components are of three types:

v Tier 1 customer replaceable unit (CRU): Replacement of Tier 1 CRUs is your

responsibility. If IBM installs a Tier 1 CRU at your request, you will be charged for the installation.

v Tier 2 customer replaceable unit: You may install a Tier 2 CRU yourself or

request IBM to install it, at no additional charge, under the type of warranty service that is designated for your server.

v Field replaceable unit (FRU): FRUs must be installed only by trained service

technicians.

information about the terms of the warranty and getting service and assistance,

For see the Warranty and Support Information document.

Index Description

CRU No.

(Tier 1)

CRU No.

(Tier 2)

FRU No.

1 Cover (models 7971-all) 32R2432

1 Cover (models 7972-all) 42D8680

MPE board assembly (models 7972-32x 7972-3Bx 7972-52x

7972-5Bx 7972-6Bx 7972-4Tx 7972-7Bx 7972-E2y

Bezel, MPE unit (models 7972-32x 7972-3Bx 7972-4Tx 7972-52x

7972-5Bx 7972-6Bx 7972-7Bx 7972-E2y)

40K5904

39R9204

4 Filler, microprocessor heat sink (models 7971-all except E1y) 40K5929

5 Heat sink, microprocessor 40K5895

6 Microprocessor, Opteron 2210, 1.8 GHz, 45W (model 7971-2Tx) 43X0910

6 Microprocessor, Opteron 2210, 1.8 GHz, 68W (model 7971-21x) 43X0911

6 Microprocessor, Opteron 2212, 2.0 GHz, 68W (model 7971-31x) 39R9237

6 Microprocessor, Opteron 2212, 2.0 GHz, 95W (model 7971-3Ax) 39R9238

6 Microprocessor, Opteron 2216, 2.4 GHz, 68W (model 7971-51x) 39R9239

6 Microprocessor, Opteron 2216, 2.4 GHz, 95W (model 7971-5Ax) 40K8422

6 Microprocessor, Opteron 2218, 2.6 GHz, 95W (model 7971-6Ax) 39R9240

6 Microprocessor, Opteron 2200, 2.8 GHz, 95W (model 7971-7Ax) 43X0912

Microprocessor, Opteron 8212, 2.0 GHz, 68W (models 7972-31x,

7972-32x)

Microprocessor, Opteron 8212, 2.0 GHz, 95W (models 7972-3Ax,

7972-3Bx)

39R9241

39R9242

6 Microprocessor, Opteron 8214, 2.2 GHz, 68W (model 7972-4Tx) 43X0913

Microprocessor, Opteron 8216, 2.4 GHz, 68W (models 7972-51x,

7972-52x)

Microprocessor, Opteron 8216, 2.4 GHz, 95W (models 7972-5Ax,

7972-5Bx)

Microprocessor, Opteron 8218, 2.6 GHz, 95W (models 7972-6Ax,

7972-6Bx)

Microprocessor, Opteron 8220, 2.8 GHz, 95W (models 7972-7Ax

7872-7Bx)

39R9243

40K8423

39R9244

43X0914

7 System board assembly (models 7971-all) 39R9203

8 Bezel assembly, blade server (models 7971-all) 40K5905

8 Bezel assembly, blade server (models 7972-all) 40K5896

/9 Filler, DIMM 40K5884

10 Hard disk drive, 36.4 GB SAS (option) 26K5778

10 Hard disk drive, 73.4 GB SAS (option) 26K5779

Memory, 512 MB PC2-5300, VLP (models 7971-31x 7971-3Ax

7971-21x 791-2Tx 7972-31x 7972-3Ax 7972-32x 7972-3Bx

39M5860

7972-4Tx)

Memory, 1 GB PC2-5300, VLP (models 7971-51x 7971-5Ax

7971-6Ax 7971-7Ax 7972-51x 7972-5Ax 7972-6Ax 7972-7Ax

39M5863

7972-52x 7972-5Bx 7972-6Bx 7972-7Bx)

11 Memory, 2 GB PC2-5300, VLP (model 7971-E!y 7972-option) 39M5866

11 Memory, 4 GB PC2-4200 (option) 39M5869

Battery, 3.0 volt 33F8354

60 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

Index Description

BladeCenter Storage Expansion Unit 3 (option) 40K1739

DC adapter (option) 32R1899

Expansion card, Concurrent KVM (option) 13N0842

Expansion card, IBM Gigabit Ethernet (option) 39M4630

Expansion card, Infiniband 4x high-speed (option) 32R1763

Expansion card, Myrinet (option) 32R1845

Expansion card, Myrinet 4 MB (option) 40K8871

Fibre channel card (option) 26K4859

Fibre channel expansion card (option) 26R0889

Filler, hard disk drive 40K5928

iSCSI card 32R1926

Kit, miscellaneous parts 32R2451

Label, FRU list 40K5933

Label, system service 40K5927

PCI expansion 2 card (option) 32R0753

Tray, SAS hard disk drive 31R2239

ServeRAID 8 k-l card (option) 25R8079

ServeRAID 8 k, without battery (option) 25R8076

CRU No.

(Tier 1)

CRU No.

(Tier 2)

FRU No.

Chapter 3. Parts listing, Types 7971 and 7972 61

62 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

Chapter 4. Removing and replacing blade server components

Replaceable components are of three types:

v Tier 1 customer replaceable unit (CRU): Replacement of Tier 1 CRUs is your

responsibility. If IBM installs a Tier 1 CRU at your request, you will be charged for the installation.

v Tier 2 customer replaceable unit: You may install a Tier 2 CRU yourself or

request IBM to install it, at no additional charge, under the type of warranty that is designated for your server.

v Field replaceable unit (FRU): FRUs must be installed only by trained service

technicians.

Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine

See whether a component is a Tier 1 CRU, Tier 2 CRU, or FRU.

For information about the terms of the warranty and getting service and assistance, see the Warranty and Support Information document.

Installation guidelines

Before you install options, read the following information:

v Read the safety information that begins on page vii and the guidelines in

“Handling static-sensitive devices” on page 64. This information will help you work safely.

v When you install your new blade server, take the opportunity to download and

apply the most recent firmware updates. This step will help to ensure that any known issues are addressed and that your blade server is ready to function at maximum levels of performance. To download firmware updates for your blade server, go to http://www.ibm.com/bladecenter/, click Support, select BladeCenter

LS21 or BladeCenter LS41 from the Hardware list, and click Go; then, click the Download tab.

v Observe good housekeeping in the area where you are working. Place removed

covers and other parts in a safe place.

v Back up all important data before you make changes to disk drives.

v Before you remove a blade server from the BladeCenter unit, you must shut

down the operating system and turn off the blade server. Yo u do not have to shut down the BladeCenter unit itself.

v Blue on a component indicates touch points, where you can grip the component

to remove it from or install it in the blade server, open or close a latch, and so on.

v Orange on a component or an orange label on or near a component indicates

that the component can be hot-swapped, which means that if the server and operating system support hot-swap capability, you can remove or install the component while the server is running. (Orange can also indicate touch points on hot-swap components.) See the instructions for removing or installing a specific hot-swap component for any additional procedures that you might have to perform before you remove or install the component.

v For a list of supported options for the blade server, see http://www.ibm.com/

servers/eserver/serverproven/compat/us/.

System reliability guidelines

To help ensure proper cooling and system reliability, make sure that the following requirements are met:

v Each microprocessor socket always contains either a microprocessor heat-sink

filler or a microprocessor and heat sink. If the blade server has only one microprocessor, it must be installed in microprocessor socket 1.

v You do not operate the BladeCenter unit without a blade server, expansion unit,

or filler blade installed in each blade bay to ensure proper cooling. See the documentation for your BladeCenter unit for additional information.

v The blade server battery must be operational. If the battery becomes defective,

replace it immediately.

Handling static-sensitive devices

Attention: Static electricity can damage the blade server and other electronic

devices. To avoid damage, keep static-sensitive devices in their static-protective packages until you are ready to install them.

To reduce the possibility of damage from electrostatic discharge, observe the following precautions:

v When working on the BladeCenter T unit, use an electrostatic discharge (ESD)

wrist strap, especially when you will be handling modules, options, and blade servers. To work properly, the wrist strap must have a good contact at both ends (touching your skin at one end and firmly connected to the front or back of the BladeCenter unit).

v Limit your movement. Movement can cause static electricity to build up around

you.

v Handle the device carefully, holding it by its edges or its frame.

v Do not touch solder joints, pins, or exposed circuitry.

v Do not leave the device where others can handle and damage it.

v While the device is still in the static-protective package, touch it to an unpainted

metal part of the BladeCenter unit or any unpainted metal surface on any other grounded rack component in the rack you are installing the device in for at least 2 seconds. This drains static electricity from the package and from your body.

v Remove the device from the package and install it directly into the blade server

without setting down the device. If it is necessary to set down the device, put it back into the static-protective package. Do not place the device on the blade server cover or on a metal surface.

v Take additional care when handling devices during cold weather. Heating reduces

indoor humidity and increases static electricity.

Returning a device or component

If you are instructed to return a device or component, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you.

64 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

Removing the blade server from a BladeCenter unit

Attention:

v To maintain proper system cooling, do not operate the BladeCenter unit without a

blade server, expansion unit, or blade filler installed in each blade bay.

v Note the bay number. Reinstalling a blade server into a different bay than the

one from which it was removed could have unintended consequences. Some configuration information and update options are established according to bay number; if you reinstall the blade server into a different bay, you might have to reconfigure the blade server.

remove the blade server from a BladeCenter unit, complete the following steps.

To The appearance of your BladeCenter unit might be different, see the documentation for your BladeCenter unit for additional information.

Release handles (open)

1. Read the safety information that begins on page vii and “Installation guidelines” on page 63.

2. If the blade server is operating, shut down the operating system; then, press the power-control button (behind the blade server control panel door) to turn off the blade server (see “Turning off the blade server” on page 6 for more information).

Attention: Wait at least 30 seconds, until the hard disk drives stop spinning,

before proceeding to the next step.

3. Pull the two release handles to the open position. The blade server moves out of the bay approximately 0.6 cm (0.25 inch).

4. Pull the blade server out of the bay.

5. Place either a blade filler or another blade server in the bay within 1 minute.

Chapter 4. Removing and replacing blade server components 65

Installing the blade server in a BladeCenter unit

To install a blade server in a BladeCenter unit, complete the following steps. The appearance of your BladeCenter unit might be different, see the documentation for your BladeCenter unit for additional information.

Release handles (open)

Statement 21:

CAUTION: Hazardous energy is present when the blade server is connected to the power source. Always replace the blade cover before installing the blade server.

1. Make sure that the release handles on the blade server are in the open position (perpendicular to the blade server).

2. If you installed a blade filler or another blade server in the bay from which you removed the blade server, remove it from the bay.

Attention: Yo u must install the blade server in the same blade bay from which

you removed it. Some blade server configuration information and update options are established according to bay number. Reinstalling a blade server into a different blade bay from the one from which it was removed could have unintended consequences, and you might have to reconfigure the blade server.

3. Slide the blade server into the blade bay from which you removed it until it stops.

4. Push the release handles on the front of the blade server to the closed position.

5. Turn on the blade server (see “Turning on the blade server” on page 6).

6. Make sure that the power-on LED on the blade server control panel is lit continuously, indicating that the blade server is receiving power and is turned on.

66 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

7. (Optional) Write identifying information on one of the labels that come with the blade servers and place the label on the BladeCenter unit bezel. See the documentation for your BladeCenter unit for information about the label placement.

Important: Do not place the label on the blade server or in any way block the

ventilation holes on the blade server.

If you have changed the configuration of the blade server or if you are installing a different blade server from the one that you removed, you must configure the blade server through the Configuration/Setup Utility, and you might have to install the blade server operating system. Detailed information about these tasks is available in the Installation and User’s Guide.

Chapter 4. Removing and replacing blade server components 67

Removing and replacing Tier 1 CRUs

Replacement of Tier 1 CRUs is your responsibility. If IBM installs a Tier 1 CRU at your request, you will be charged for the installation.

The illustrations in this document might differ slightly from your hardware.

Removing the blade server cover

Note: If the blade server has an expansion unit that does not have a removable

cover, remove the expansion unit (see “Removing an expansion unit” on page 70).

To remove the blade server cover, complete the following steps.

Note: The following illustration shows how to remove the cover from a single-width

model blade server; removing the cover from a double-width model blade server is similar.

Blade-cover release

1. Read the safety information that begins on page vii and “Installation guidelines” on page 63.

2. If the blade server is installed in a BladeCenter unit, remove it (see “Removing the blade server from a BladeCenter unit” on page 65).

3. Carefully lay the blade server down on a flat, static-protective surface, with the cover side up.

4. Press the blade-cover release on each side of the blade server or expansion unit and lift the cover open.

5. Lift the cover from the blade server and store it for future use.

68 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

Installing the blade server cover

To install the blade server cover, complete the following steps.

Note: The following illustration shows how to install the cover on a single-width

model blade server; installing the cover on a double-width model blade server is similar.

Blade-cover release

Statement 21:

CAUTION: Hazardous energy is present when the blade server is connected to the power source. Always replace the blade cover before installing the blade server.

Attention: Yo u cannot insert the blade server into the BladeCenter unit until the

cover is installed and closed. Do not attempt to override this protection.

1. Read the safety information that begins on page vii and “Installation guidelines” on page 63.

2. Lower the cover so that the slots at the rear slide down onto the pins at the rear of the blade server. Before closing the cover, check that all components are installed and seated correctly and that you have not left loose tools or parts inside the blade server.

3. Pivot the cover to the closed position until it clicks into place.

4. Install the blade server into the BladeCenter unit (see “Installing the blade server in a BladeCenter unit” on page 66).

Chapter 4. Removing and replacing blade server components 69

Removing an expansion unit

To remove an expansion unit, complete the following steps.

Note: The following illustration shows how to remove an MPE unit from the blade

server; removing another type of expansion unit from a blade server is similar.

Extraction thumbscrew

Expansion unit

Blade expansion connector cover

Blade-cover release

MPE unit connector cover

Blade-cover release

1. Read the safety information beginning on page vii and “Installation guidelines” on page 63.

2. If the blade server is installed in a BladeCenter unit, remove it (see “Removing the blade server from a BladeCenter unit” on page 65).

3. Carefully lay the blade server down on a flat, static-protective surface, with the cover side up.

4. Remove the blade server cover, if one is installed (see “Removing the blade server cover” on page 68).

5. If the expansion unit has an extraction device (such as a thumbscrew or a lever), use it to disengage the expansion unit from the blade server; otherwise, press the blade-cover release on each side of the blade server to disengage the expansion unit from the blade server.

Attention: Do not rotate the expansion unit open further than 90° to avoid

damage to the connectors at the rear of the blade server.

6. Rotate the expansion unit open; then, lift the expansion unit from the blade server.

7. If you are not installing an expansion unit immediately, make sure that the protective covers are installed on the blade expansion connector and the MPE unit connector.

8. If you are instructed to return the expansion unit, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you.

70 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

Installing an expansion unit

Attention: If a high-speed expansion card is installed in the blade server system

board, you cannot install an expansion unit.

To install an expansion unit, complete the following steps.

Note: The following illustration shows how to install an MPE unit on the blade

server; installing another type of expansion unit on a blade server is similar.

Extraction thumbscrew

Expansion unit

Blade expansion connector cover

Blade-cover release

MPE unit connector cover

Blade-cover release

1. Remove the cover from the blade expansion connector, if one is installed.

2. If you are installing an MPE unit, remove the cover from the MPE unit connector, if one is installed.

3. Touch the static-protective package that contains the expansion unit to any

unpainted metal surface on the BladeCenter unit or any unpainted metal surface

on any other grounded rack component; then, remove the expansion unit from the package.

4. Orient the expansion unit above the blade server.

5. Lower the expansion unit so that the slots at the rear slide down onto the cover pins at the rear of the blade server; then, pivot the expansion unit down onto the blade server.

6. If the expansion unit has an extraction device (such as a thumbscrew or a lever), use it to fully engage the expansion unit on the blade server; otherwise, press the expansion unit firmly into the closed position until it clicks into place.

7. Install the blade-server cover, if required (see“Installing the blade server cover” on page 69).

8. Install the blade server into the BladeCenter unit (see “Installing the blade server in a BladeCenter unit” on page 66).

Chapter 4. Removing and replacing blade server components 71

Removing the bezel assembly

To remove the bezel assembly, complete the following steps.

Note: The following illustration shows how to remove the bezel assembly from the

blade server; removing the bezel assembly from the MPE unit is similar.

Bezel-assembly release (both sides)

Bezel assembly

Control-panel cable

Control-panel connector

1. Read the safety information that begins on page vii and “Installation guidelines” on page 63.

2. Open the blade server cover (see “Removing the blade server cover” on page

68).

3. If you are removing the bezel assembly from the blade server and an MPE unit is installed, remove the MPE unit (see “Removing an expansion unit” on page

70).

4. Press the bezel-assembly release on each side of the blade server and pull the bezel assembly away from the blade server approximately 1.2 cm (0.5 inch).

5. If you are removing the blade-server bezel assembly, disconnect the control-panel cable from the control-panel connector.

6. Pull the bezel assembly away from the blade server.

7. If you are instructed to return the bezel assembly, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you; otherwise, store the bezel assembly in a safe place.

72 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

Installing the bezel assembly

To install the bezel assembly, complete the following steps.

Note: The following illustration shows how to install the bezel assembly on the

blade server; installing the bezel assembly on the MPE unit is similar.

Bezel-assembly release (both sides)

Bezel assembly

Control-panel cable

Control-panel connector

1. If you are installing the blade-server bezel assembly, connect the control-panel cable to the control-panel connector.

2. Carefully slide the bezel assembly onto the blade server until it clicks into place.

3. Install the MPE unit, if one was removed while removing the bezel assembly (see “Installing an expansion unit” on page 71).

4. Install the cover onto the blade server (see “Installing the blade server cover” on page 69).

5. Install the blade server into the BladeCenter (see “Installing the blade server in a BladeCenter unit” on page 66).

Chapter 4. Removing and replacing blade server components 73

Removing a SAS hard disk drive

To remove a SAS hard disk drive, complete the following steps.

Note: The following illustration shows how to remove the SAS hard disk drive from

the blade server; removing the SAS hard disk drive from the MPE unit is similar.

SAS hard disk drive

Hard disk drive release lever

1. Read the safety information that begins on page vii and “Installation guidelines” on page 63.

2. If the blade server is installed in a BladeCenter unit, remove it (see “Removing the blade server from a BladeCenter unit” on page 65).

3. Remove the blade server cover (see “Removing the blade server cover” on page 68).

4. If you are removing a hard disk drive from the blade server and an MPE unit is installed, remove the MPE unit (see “Removing an expansion unit” on page 70).

5. Locate the blue release lever on the hard disk drive tray.

6. While pushing the release lever away from the drive, slide the drive forward to disengage it from the connector at the rear of the drive tray: then, lift the drive out of the drive tray.

7. If you are instructed to return the hard disk drive, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you.

74 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

Installing a SAS hard disk drive

To install a SAS hard disk drive, complete the following steps.

Note: The following illustration shows how to install the SAS hard disk drive in the

blade server; installing the SAS hard disk drive in the MPE unit is similar.

SAS hard disk drive

Hard disk drive release lever

1. Touch the static-protective package that contains the hard disk drive to any

unpainted metal surface on the BladeCenter unit or any unpainted metal surface

on any other grounded rack component; then, remove the hard disk drive from the package.

Attention: Do not press on the top of the drive. Pressing the top might

damage the drive.

2. Place the hard disk drive into the drive tray and push it into the connector at the rear of the drive tray, until the drive moves past the lever at the front of the tray.

3. Install the MPE unit, if one was removed while removing the hard disk drive (see “Installing an expansion unit” on page 71).

4. Install the blade server cover (see “Installing the blade server cover” on page

69).

5. Install the blade server into the BladeCenter unit (see “Installing the blade server in a BladeCenter unit” on page 66).

Chapter 4. Removing and replacing blade server components 75

Removing a memory module

To remove a DIMM, complete the following steps.

Note: The following illustration shows how to remove a DIMM from the blade

server or the MPE unit.

DIMM

1. Read the safety information that begins vii and “Installation guidelines” on page 63

2. If the blade server is installed in a BladeCenter unit, remove it (see “Removing the blade server from a BladeCenter unit” on page 65).

3. Remove the blade server cover (see “Removing the blade server cover” on page 68).

4. If you are removing a DIMM from the blade server and an MPE unit is installed, remove the MPE unit (see “Removing an expansion unit” on page 70).

5. Locate the DIMM connectors (see “System board connectors” on page 7). Determine which DIMM you want to remove from the blade server.

Attention: To avoid breaking the retaining clips or damaging the DIMM

connectors, handle the clips gently.

6. Move the DIMM retaining clips on the side of the DIMM socket to the open position by pressing the retaining clips away from the center of the DIMM socket.

7. Using your fingers, pull the DIMM out of the DIMM socket.

8. If you are instructed to return the DIMM, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you.

Retaining clip

Installing a memory module

Note: If you are replacing a faulty DIMM, make sure that the replacement DIMM is

the correct type of memory. For each installed microprocessor, a set of 4 DIMM sockets is enabled (see the following table for more information). If you are adding DIMMs, install the DIMMs in pairs into the DIMM sockets that are enabled. See the

Installation and User’s Guide for additional information about the type of memory

that is compatible with the server.

76 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

Installed microprocessors Enabled DIMM sockets

1 (in blade server) 1, 2, 3, 4 (in blade server)

1 and 2 (in blade server) 1, 2, 3, 4, 5, 6, 7, 8 (in blade server)

1 and 2 (in blade server) 1 (in MPE unit)

1 and 2 (in blade server) 1 and 2 (in MPE unit)

1, 2, 3, 4, 5, 6, 7, 8 (in blade server) 1, 2, 3, 4 (in MPE unit)

1, 2, 3, 4, 5, 6, 7, 8 (in blade server) 1, 2, 3, 4, 5, 6, 7, 8 (in MPE unit)

To install a DIMM, complete the following steps.

Note: The following illustration shows how to install a DIMM in the blade server or

the MPE unit.

DIMM

Retaining clip

1. Read the documentation that comes with the DIMM.

2. Locate the DIMM connectors (see “System board connectors” on page 7). Determine the connectors into which you will install the DIMMs.

3. Touch the static-protective package that contains the DIMM to any unpainted metal surface on the BladeCenter unit or any unpainted metal surface on any other grounded rack component; then, remove the DIMM from the package.

Attention: To avoid breaking the DIMM retaining clips or damaging the DIMM

connectors, open and close the clips gently.

4. Make sure that both of the connector retaining clips are in the fully open position.

5. Turn the DIMM so that the DIMM keys align correctly with the connector on the system board.

6. Insert the DIMM by pressing the DIMM along the guides into the connector. Make sure that the retaining clips snap into the closed positions.

Attention: If there is a gap between the DIMM and the retaining clips, the

DIMM has not been correctly installed. In this case, open the retaining clips and remove the DIMM; then, reinsert the DIMM.

7. Install the MPE unit, if one was removed while removing the DIMMs (see “Installing an expansion unit” on page 71).

8. Install the blade server cover (see “Installing the blade server cover” on page

69).

9. Install the blade server into the BladeCenter unit (see “Installing the blade server in a BladeCenter unit” on page 66).

Chapter 4. Removing and replacing blade server components 77

Removing and installing an I/O expansion card

The following sections describe how to remove and replace small-form-factor, standard-form-factor, and high-speed I/O-expansion cards.

Removing a small-form-factor expansion card

To remove a small-form-factor expansion card, complete the following steps.

Note: The following illustration shows how to remove a small-form-factor expansion

card from the blade server; removing a small-form-factor expansion card from the MPE unit is similar.

Small-form-factor expansion card

PRESS HEREWHEN

INSTALLING CARD

1. Read the safety information that begins on page vii and “Installation guidelines” on page 63.

2. If the blade server is installed in a BladeCenter unit, remove it (see “Removing the blade server from a BladeCenter unit” on page 65).

3. Remove the blade server cover (see “Removing the blade server cover” on page 68).

4. If you are removing the expansion card from the blade server and an MPE unit is installed, remove the MPE unit (see “Removing an expansion unit” on page

70).

5. Gently pivot the wide end of the card out of the expansion card connectors; then, slide the notched end of the card out of the raised hook on the expansion card bracket and lift the card out of the blade server.

6. If you are instructed to return the expansion card, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you.

78 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

Installing a small-form-factor expansion card

To install a small-form-factor expansion card, complete the following steps.

Note: The following illustration shows how to install a small-form-factor expansion

card in the blade server; installing a small-form-factor expansion card in the MPE unit is similar.

1. Touch the static-protective package that contains the expansion card to any

unpainted metal surface on the BladeCenter unit or any unpainted metal surface

on any other grounded rack component; then, remove the expansion card from the package.

2. Orient the expansion card over the expansion card connectors.

3. Slide the notch in the narrow end of the card into the raised hook on the expansion card bracket; then, gently pivot the card into the expansion card connectors.

Small-form-factor expansion card

PRESS HEREWHEN

INSTALLING CARD

Note: For device-driver and configuration information to complete the

installation of the expansion card, see the documentation that comes with the expansion card.

4. Install the MPE unit, if one was removed while removing the expansion card (see “Installing an expansion unit” on page 71).

5. Install the blade server cover (see “Installing the blade server cover” on page

69).

6. Install the blade server into the BladeCenter unit (see “Installing the blade server in a BladeCenter unit” on page 66).

Chapter 4. Removing and replacing blade server components 79

Removing a standard-form-factor expansion card

To remove a standard-form-factor expansion card, complete the following steps.

Note: The following illustration shows how to remove a standard-form-factor

expansion card from the blade server; removing a standard-form-factor expansion card from the MPE unit is similar.

Standard-form-factor expansion card

1. Read the safety information that begins on page vii and “Installation guidelines” on page 63.

2. If the blade server is installed in a BladeCenter unit, remove it (see “Removing the blade server from a BladeCenter unit” on page 65).

3. Remove the blade server cover (see “Removing the blade server cover” on page 68).

4. If you are removing the expansion card from the blade server and an MPE unit is installed, remove the MPE unit (see “Removing an expansion unit” on page

70).

6. If you are instructed to return the expansion card, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you.

E R

LLIN

ST S H S

IN E R

80 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

Installing a standard-form-factor expansion card

To install a standard-form-factor expansion card, complete the following steps.

Note: The following illustration shows how to install a standard-form-factor

expansion card in the blade server; installing a standard-form-factor expansion card in the MPE unit is similar.

Standard-form-factor expansion card

1. Touch the static-protective package that contains the expansion card to any

unpainted metal surface on the BladeCenter unit or any unpainted metal surface

on any other grounded rack component; then, remove the expansion card from the package.

2. Orient the expansion card over the expansion card connectors.

3. Slide the narrow end of the card into the raised hook on the expansion card bracket; then, gently pivot the wide end of the card into the expansion card connectors.

LIN

Note: For device-driver and configuration information to complete the

installation of the expansion card, see the documentation that comes with the expansion card.

4. Install the MPE unit, if one was removed while removing the expansion card (see “Installing an expansion unit” on page 71).

5. Install the blade server cover (see “Installing the blade server cover” on page

69).

6. Install the blade server into the BladeCenter unit (see “Installing the blade server in a BladeCenter unit” on page 66).

Chapter 4. Removing and replacing blade server components 81

Removing a high-speed expansion card

To remove a high-speed expansion card, complete the following steps.

Note: The following illustration shows how to remove a high-speed expansion card

from the blade server; removing a high-speed expansion card from the MPE unit is similar.

High-speed expansion card

Expansion card standoff

1. Read the safety information that begins on page vii and “Installation guidelines” on page 63.

2. If the blade server is installed in a BladeCenter unit, remove it (see “Removing the blade server from a BladeCenter unit” on page 65).

3. Remove the blade server cover (see “Removing the blade server cover” on page 68).

4. Rotate the expansion-card extraction lever upward to disengage the blade-expansion connector.

5. Pivot the narrow end of the card away from the blade expansion connector; then, slide the slots at the back end of the card out of the expansion-card standoffs and lift the card out of the blade server.

6. If you are instructed to return the expansion card, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you.

Extraction lever

Blade expansion connector

82 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

Installing a high-speed expansion card

To install a high-speed expansion card, complete the following steps.

Note: The following illustration shows how to install a high-speed expansion card in

the blade server; installing a high-speed expansion card in the MPE unit is similar.

1. Touch the static-protective package that contains the expansion card to any

2. Locate the blade-expansion connector and orient the expansion card over it.

3. Slide the slots at the back end of the card onto the pins on the expansion card

4. Firmly press on the indicated locations to seat the expansion card.

High-speed expansion card

Blade expansion connector

Expansion card standoff

unpainted metal surface on the BladeCenter unit or any unpainted metal surface

on any other grounded rack component; then, remove the expansion card from the package.

standoff; then, gently pivot the card into the blade expansion connector.

Note: For device-driver and configuration information to complete the

installation of the expansion card, see the documentation that comes with the expansion card.

5. Install the blade server cover (see “Installing the blade server cover” on page

69).

6. Install the blade server into the BladeCenter unit (see “Installing the blade server in a BladeCenter unit” on page 66).

Chapter 4. Removing and replacing blade server components 83

Removing the battery

To remove the battery, complete the following steps.

1. Read the safety information that begins on page vii and “Installation guidelines” on page 63

2. If the blade server is installed in a BladeCenter unit, remove it (see “Removing the blade server from a BladeCenter unit” on page 65).

3. Remove the blade server cover (see “Removing the blade server cover” on page 68).

4. If an MPE unit is installed, remove the MPE unit (see “Removing an expansion unit” on page 70).

5. Locate the battery on the system board (see “System board connectors” on page 7).

6. Use one finger to press the top of the battery clip away from the battery. The battery pops up when released.

7. Use your thumb and index finger to lift the battery from the socket.

8. Dispose of the battery as required by local ordinances or regulations.

Installing the battery

The following notes describe information that you must consider when you are replacing the battery in the blade server.

v When you are replacing the battery, you must replace it with a lithium battery of

the same type from the same manufacturer.

v To order replacement batteries, call 1-800-426-7378 within the United States, and

1-800-465-7999 or 1-800-465-6666 within Canada. Outside the U.S. and Canada, call your IBM marketing representative or authorized reseller.

v After you replace the battery, you must reconfigure the server and reset the

system date and time.

v To avoid possible danger, read and follow the following safety statement.

84 BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide

IBM LS21, BladeCenter LS21 Type 7971, BladeCenter LS41 Type 7972 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual