NEC MC2400 User Manual

Server MC2400

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User’s Guide

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Server MC2400

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User’s Guide

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Proprietary Notice and Liability Disclaimer

The information disclosed in this document, including all designs and related materials, is the valuable property of NEC Computer Systems Division (hereinafter "NEC CSD") and/or its licensors. NEC CSD and/or its licensors, as appropriate, reserve all patent, copyright and other proprietary rights to this document, including all design, manufacturing, reproduction, use, and sales rights thereto, except to the extent said rights are expressly granted to others.

The NEC CSD product(s) discussed in this document are warranted in accordance with the terms of the Warranty Statement accompanying each product. However, actual performance of each such product is dependent upon factors such as system configuration, customer data, and operator control. Since implementation by customers of each product may vary, the suitability of specific product configurations and applications must be determined by the customer and is not warranted by NEC CSD.

To allow for design and specification improvements, the information in this document is subject to change at any time, without notice. Reproduction of this document or portions thereof without prior written approval of NEC CSD is prohibited.

Trademarks

INTEL is a registered trademark of Intel Corporation. MS-DOS is a registered trademark of Microsoft Corporation.

Pentium is a registered trademark of Intel Corporation. All other product, brand, or trade names used in this publication are the trademarks or registered

trademarks of their respective trademark owners.

PN: 102173-02

November 1999

NEC Computer Systems Division

Contents

ContentsContents

Using This Guide.................................................................. ix

Text Conventions................................................................................................................... x

Related Documents...............................................................................................................xi

Safety Notices......................................................................................................................xii

Safety Notices for Users Outside of the U.S.A. and Canada.........................................xiii

Care and Handling.............................................................................................................. xiv

System Overview ............................................................... 1-1

Overview ............................................................................................................................1-2

System Chassis ...................................................................................................................1-5

Power Supply......................................................................................................................1-7

Peripheral Bays...................................................................................................................1-7

SAF-TE Board....................................................................................................................1-7

System Board Features.......................................................................................................1-8

Pentium Processor .....................................................................................................1-9

System Memory ............................................................................................................ 1-9

I/O Expansion Slots.....................................................................................................1-10

Real-Time Clock/Calendar..........................................................................................1-11

BIOS............................................................................................................................1-11

IDE Controller............................................................................................................. 1-11

Network Controller......................................................................................................1-11

SCSI Controller ........................................................................................................... 1-12

Video Controller..........................................................................................................1-12

Peripheral Controller...................................................................................................1-13

Serial Ports...........................................................................................................1-13

Parallel Port .........................................................................................................1-13

External Device Connectors........................................................................................1-13

System Board Management Controller (BMC)...........................................................1-13

System Security................................................................................................................1-14

Security with Mechanical Locks and Monitoring .......................................................1-14

Software Locks via the System Setup Utility..............................................................1-14

Setting Up the System ....................................................... 2-1

Overview ............................................................................................................................2-2

Selecting a Site ...................................................................................................................2-2

Unpacking the System........................................................................................................2-3

Rack-Mount Subsystem Assembly..................................................................................... 2-4

Before You Begin..........................................................................................................2-4

Static Precautions ..........................................................................................................2-4

Assembly.......................................................................................................................2-5

Getting Familiar with the System.......................................................................................2-8

Front View with Front Door Closed..............................................................................2-8

Front View with Front Door Opened ............................................................................2-9

Rear View....................................................................................................................2-11

Status Indicator LED Descriptions..............................................................................2-12

Making Connections.........................................................................................................2-14

Setting the Line Voltage...................................................................................................2-15

Connecting the Power Cord(s) .........................................................................................2-17

Contents iii

Powering On Your System .............................................................................................. 2-17

Configuring Your System...................................................3-1

Configuring Your System.................................................................................................. 3-2

BIOS Setup Utility............................................................................................................. 3-3

Using the BIOS Setup Utility ....................................................................................... 3-3

BIOS Setup Configuration Settings.............................................................................. 3-4

Main Menu.................................................................................................................... 3-5

Primary IDE Master and Slave Submenu ............................................................. 3-6

Secondary IDE Master and Slave Submenu ......................................................... 3-7

Keyboard Submenu............................................................................................... 3-8

Processor Settings Submenu................................................................................. 3-8

Advanced Menu............................................................................................................ 3-9

PCI Configuration Submenus ............................................................................. 3-10

PCI Device, Slot 1 - Slot 4 Submenus ................................................................ 3-10

Integrated Peripheral Configuration Submenu ................................................... 3-11

Advanced Chipset Control.................................................................................. 3-12

Security Menu............................................................................................................. 3-12

Security menu (Continued)......................................................................................... 3-13

Security menu (Continued)......................................................................................... 3-14

Server Menu................................................................................................................ 3-14

System Management Submenu........................................................................... 3-15

Server Management Information Submenu ........................................................ 3-16

Console Redirection Submenu............................................................................ 3-17

Boot Menu .................................................................................................................. 3-17

Boot Device Priority Submenu ........................................................................... 3-18

Hard Drive Submenu .......................................................................................... 3-18

Removable Devices ............................................................................................ 3-18

Exit Menu ................................................................................................................... 3-19

Symbios Configuration Utility......................................................................................... 3-20

Running the Symbios Configuration Utility............................................................... 3-20

Changing the Adapter and Device Configurations ..................................................... 3-21

Optional RAID Controllers.............................................................................................. 3-24

Factory Installed Controllers ...................................................................................... 3-24

Add-on Controller....................................................................................................... 3-25

DACCF Configuration Utility .................................................................................... 3-25

Configuring System Board Jumpers ................................................................................ 3-26

Before You Begin....................................................................................................... 3-26

Moving System Board Jumpers.................................................................................. 3-28

Resetting the CMOS NVRAM ................................................................................... 3-29

Clearing and Changing the Passwords........................................................................ 3-29

Recovering the BIOS.................................................................................................. 3-29

Boot Block Write Protect............................................................................................ 3-29

Fault Resilient Booting (FRB) Timer Enable Jumper ................................................ 3-30

Chassis Intrusion Detection Jumper ........................................................................... 3-31

BMC Forced Update Mode ........................................................................................ 3-31

iv Contents

Upgrading Your System ....................................................... 1

General Information .............................................................................................................. 2

Static Precautions .................................................................................................................. 2

Preparing Your System for Upgrade .....................................................................................3

Equipment Log ...................................................................................................................... 3

Opening the Front Door......................................................................................................... 3

Removing a Side Panel.......................................................................................................... 4

Installing a Side Panel ........................................................................................................... 5

Modifying the System Board.................................................................................................6

Replacing the Real-time Clock Battery............................................................................ 6

Replacing a Pentium Processor ........................................................................................ 8

Removing the Pentium II Processor (S.E.C. Version)..............................................9

Installing the Pentium II Processor (S.E.C. Version)............................................. 10

Replacing the Pentium III Processor (SECC2 Version) ......................................... 12

Removing and Installing the Cooling Baffle.................................................................. 14

DIMMs...........................................................................................................................15

Memory DIMM Configurations ............................................................................. 16

Installing DIMMs................................................................................................... 17

Removing DIMMs.................................................................................................. 18

Option Boards...................................................................................................................... 19

Installation Considerations ............................................................................................. 19

Installing an Option Board ............................................................................................. 20

Removing an Option Board............................................................................................ 23

Installing a RAID Controller Board ....................................................................................23

Hard Disk Drives................................................................................................................. 24

Installing or Swapping a Hard Disk Drive in a Hot-swap Bay ...................................... 25

Installing or Swapping a Hard Disk Drive ..................................................................... 26

Removable Media Devices.................................................................................................. 29

Installing a 5.25-Inch Media Device .............................................................................. 30

Removing a 5.25-Inch Device........................................................................................ 35

Problem Solving................................................................. 5-1

Problem Solving .................................................................................................................5-2

Static Precautions ...............................................................................................................5-2

Troubleshooting Checklists................................................................................................5-3

Initial System Startup....................................................................................................5-3

Running New Application Software .............................................................................5-4

After System Has Been Running Correctly...................................................................5-5

Additional Troubleshooting Procedures............................................................................. 5-6

Preparing the System for Diagnostic Testing................................................................ 5-6

Monitoring POST..........................................................................................................5-7

Verifying Proper Operation of Key System Indicators................................................. 5-8

Confirming Loading of the Operating System ..............................................................5-8

Specific Problems and Corrective Actions.........................................................................5-9

Power LED Does Not Light ..........................................................................................5-9

Incorrect or No Beep Code..........................................................................................5-10

No Characters Appear on Screen ................................................................................5-10

Characters are Distorted or Incorrect ..........................................................................5-11

System Cooling Fans Do Not Rotate ..........................................................................5-11

Diskette Drive Activity LED Does Not Light.............................................................5-11

CD-ROM Drive Activity Light Does Not Light ......................................................... 5-12

Contents v

Problems with Application Software.......................................................................... 5-12

Press F2 Key to Enter Setup: Prompt Does Not Display........................................... 5-12

Enable F2 Prompt by Using SSU........................................................................ 5-13

Enable F2 Prompt by Changing a Jumper and Using SSU................................. 5-14

Bootable CD-ROM Is Not Detected........................................................................... 5-14

Problems with the Network.............................................................................................. 5-15

PNP Installation Tips ....................................................................................................... 5-16

BIOS User’s Information................................................................................................. 5-16

Error and Status Messages.......................................................................................... 5-16

POST Error Codes and Messages............................................................................... 5-20

How to Identify BIOS and BMC Revision Levels .......................................................... 5-22

BIOS Revision Level Identification ........................................................................... 5-22

BMC Revision Level Identification............................................................................ 5-22

System Cabling.................................................................. A-1

System Cabling................................................................................................................. A-2

Before You Begin ............................................................................................................. A-2

Static Precautions..............................................................................................................A-2

Standard Configuration..................................................................................................... A-3

RAID Configuration ......................................................................................................... A-6

System Setup Utility .......................................................... B-1

System Setup Utility (SSU) ...............................................................................................B-2

Creating SSU Diskettes......................................................................................................B-3

Running the SSU................................................................................................................B-4

Customizing the SSU....................................................................................................B-5

Launching a Task..........................................................................................................B-6

Resource Configuration Add-in (RCA) Window .........................................................B-7

Defining an ISA Card ...................................................................................................B-8

Adding and Removing ISA Cards ................................................................................B-9

Modifying Resources..................................................................................................B-10

Recommended Resource Settings...............................................................................B-11

System Resource Usage..............................................................................................B-12

Multiboot Add-in (MBA) Window.............................................................................B-13

Password Administration (PWA) Window.................................................................B-13

System Event Log (SEL) Window .............................................................................B-14

Exiting the SSU................................................................................................................B-15

Emergency Management Port...........................................C-1

Emergency Management Port............................................................................................C-2

How the EMP Works.........................................................................................................C-3

EMP Requirements and Configurations ............................................................................C-5

Setting Up the Server for the EMP ....................................................................................C-6

System Management Submenu.....................................................................................C-6

Console Redirection Submenu......................................................................................C-7

Main EMP Window ...........................................................................................................C-7

Toolbar..........................................................................................................................C-7

Status Bar......................................................................................................................C-8

EMP Main Menu ..........................................................................................................C-8

Server Control Operations............................................................................................C-9

Connect .................................................................................................................C-9

Power On/Off......................................................................................................C-10

vi Contents

Reset ................................................................................................................... C-11

Phonebook .......................................................................................................................C-12

Management Plug-ins...................................................................................................... C-13

SEL Viewer ................................................................................................................ C-13

SEL Viewer Menu Options ................................................................................ C-14

Sensor Type Codes ............................................................................................. C-15

Using the Sensor Type Code Table.................................................................... C-15

SDR Viewer ...............................................................................................................C-17

SDR Viewer Menu Options................................................................................ C-18

FRU Viewer ...............................................................................................................C-18

FRU Viewer Menu Options................................................................................ C-19

System Status Hardware Support Information................D-1

System Status Hardware Support Information ..................................................................D-2

Glossary

Equipment Log

Index

Contents vii

Using This Guide

The MC2400 User’s Guide provides a quick reference to information about your system. Its goal is to familiarize you with your system and the tasks necessary for system configuring and upgrading.

This guide contains the following information:

Chapter 1, “System Overview” provides an overview of your system and describes your

system’s major system components. See this chapter to familiarize yourself with your system.

Chapter 2, “Setting Up Your System” tells you how to select a site, unpack the system,

assemble the rack-mount subsystem, make cable connections, and power on your system.

Chapter 3, “Configuring Your System” tells you how to configure the system and

provides instructions for running the BIOS Setup Utility and the Symbios Configuration Utility, which is used to configure SCSI devices in your system. This chapter also provides information on system board jumper settings.

Chapter 4, “Upgrades and Options” provides you with instructions for upgrading your

system with an additional processor, optional memory, options cards, and peripheral devices.

Chapter 5, “Problem Solving” contains helpful information for solving problems that

might occur with your system.

Appendix A, “System Cabling” includes cabling information for the two onboard SCSI

controllers, the onboard IDE controllers, and the optional RAID controllers.

Appendix B, “System Setup Utility” provides information for configuring onboard

resources and add-in boards. It also provides information on viewing the system event log.

Appendix C, “Emergency Management Port” provides information on a feature that

provides an interface to the Emergency Management Port (EMP) Console Manager. This interface allows remote server management via a modem or direct connection.

Appendix D, “System Status Hardware Support Information” helps you identify a

system status hardware item indicated by one of several software monitoring components.

“Glossary” defines the standard acronyms and technical terms used in this manual.

“Equipment Log” provides you with a sample equipment log for documenting the

system configuration and future updates you may make to your system.

Using This Guide ix

Text Conventions

This guide uses the following text conventions.

Warnings, cautions, and notes have the following meanings:

Warnings alert you to situations that could result in serious personal injury or loss of life.

Cautions indicate situations that can damage the system hardware or software.

Note

Names of keyboard keys are printed as they appear on the keyboard. For example, Ctrl,

Alt, or Enter.

Notes give important information about the material being described.

WARNING

CAUTION

Text or keystrokes that you enter appear as boldface type. For example, type abc123 and

press ENTER.

File names are printed in uppercase letters. For example, AUTOEXEC.BAT.

x Using This Guide

Safety Notices

Caution: To reduce the risk of electric shock which could cause personal injury, follow

all safety notices. The symbols shown are used in your documentation and on your equipment to indicate safety hazards.

Warning: Lithium batteries can be dangerous. Improper handling of lithium batteries

may result in an explosion. Dispose of lithium batteries as required by local ordinance or as normal waste if no local ordinance exists.

Warning: The detachable power supply cords are intended to serve as the disconnect

devices.

Warning: This equipment has a 3-wire, grounded power cords. To prevent electrical

hazards, do not remove or defeat the ground prong on the power cords. Replace a power cord if it gets damaged. Contact your dealer for an exact replacement.

Warning: The DC push-button on/off switch on the front panel does not turn off the

system AC power. Also, +5vdc is present on the system board whenever the AC power cords are connected between the system and an AC outlet. Before doing the procedures in this manual, make sure that your system is powered off and unplug the AC power cords from the back of the chassis. Failure to disconnect power before opening your system can result in personal injury and equipment damage.

In the U.S.A. and Canada, the power cord must be a UL-listed detachable power cord (in Canada, CSA-certified), type ST or SJT, 16 AWG, 3-conductor, provided with a molded-on NEMA type 5-15 P plug cap at one end and a molded-on cord connector body at the other end. The cord length must not exceed 9 feet (2.7 meters).

Outside the U.S.A. and Canada, the plug must be rated for 250 VAC, 10 amp minimum, and must display an international agency approval marking. The cord must be suitable for use in the end-user country. Consult your dealer or the local electrical authorities if you are unsure of the type of power cord to use in your country. The voltage change occurs via a switch in the power supply.

Warning: Under no circumstances should the user attempt to disassemble the power

supply. The power supply has no user-replaceable parts. Inside the power supply are hazardous voltages that can cause serious personal injury. A defective power supply must be returned to your dealer.

xii Using This Guide

Safety Notices for Users Outside of the U.S.A. and Canada

PELV (Protected Extra-Low Voltage) Integrity: To ensure the extra-low voltage

integrity of the equipment, connect only equipment with mains-protected electricallycompatible circuits to the external ports.

Remote Earths: To prevent electrical shock, connect all local (individual office)

computers and computer support equipment to the same electrical circuit of the building wiring. If you are unsure, check the building wiring to avoid remote earth conditions.

Earth Bonding: For safe operation, only connect the equipment to a building supply

that is in accordance with current wiring regulations in your country. In the U.K., those regulations are the IEE.

Using This Guide xiii

Care and Handling

Use the following guidelines to properly handle and care for your system.

Protect the system from extremely low or high temperatures. Let the system warm (or cool) to room temperature before using it.

Keep the system away from magnetic forces.

Keep the system dry. Do not wash the system with a wet cloth or pour fluid into it.

Protect the system from being bumped or dropped.

Check the system for condensation. If condensation exists, allow it to evaporate before powering on the system.

Keep the system away from dust, sand, and dirt.

xiv Using This Guide

System Overview

Overview

System Chassis

Power Supply

Peripheral Bays

SAF-TE (SCSI Accessed Fault Tolerant Enclosure)

Board

System Board Features

System Security

Overview

This server is a modular, multiprocessing server based on the Intel Pentium® chip set. The combination of compute performance, memory capacity, and integrated I/O provides a high performance environment for many server market applications. These range from large corporations supporting remote offices to small companies looking to obtain basic connectivity capability such as file and print services, e -mail, web access, web site server, etc.

This server is also conveniently housed and available as a tower-based system or as a rack-mount system (fits into a standard IAE 19-inch rack assembly).

1-2 System Overview

Tower-Based System Front View

Rack-Mount System Front View

This server system is designed for minimum downtime. To this end, the server includes or has the options to include the following:

Optional power system redundancy; in a system configured with two power supplies,

the system will continue to operate with a single power supply failure.

Self-contained power supply units that can be easily installed or removed from the

back of the chassis.

SCSI drive bays accessible from the front of the chassis.

Hot-swap SCSI disk drive backplane; a failed drive can be removed and a new drive

installed without system power being turned off, if an optional Redundant Array of Independent Disks (RAID) controller is installed.

High degree of SCSI disk fault tolerance and advanced disk array management

features through the use of RAID technology, if an optional RAID controller is installed.

Chassis that supports up to two power supplies. The second power supply can be

added to provide redundant power.

System Overview 1-3

As application requirements increase, you can expand your server with an additional processor, additional memory, add-in boards and peripheral devices: tape devices, CDROM, diskette drives and hard disk drives.

Your server features the following major components:

Single or dual high-performance Pentium processors packaged in Single Edge

Connector (SEC) cartridges.

32 MB to 1 GB of memory, using up to four DIMMs.

Four PCI expansion slots for add-in boards (one slot shared with an ISA slot). 1x32

bit PCI bus.

Two ISA expansion slots for add-in boards (one slot shared with a PCI slot).

Embedded PC-compatible support (serial, parallel, mouse, keyboard, diskette, and Plug and Play features).

Integrated onboard Cirrus Logic CL-GD5480 Super Video Graphics Array (SVGA)

controller with 2 MB of video memory.

Dual Symbios SYM53C875 SCSI controllers providing ultra wide and legacy

narrow SCSI interfaces.

Integrated onboard Network Interface Controller (NIC), an Intel 82558 PCI LAN

controller for 10 or 100 Mbps TX Fast Ethernet networks. RJ-45 Ethernet connector.

Dual Channel enhanced IDE controller.

Chassis that holds up to 12 drives: seven hot-swap bays for ultra-2 (LVD) SCSI hard

drives; five removable media expansion bays with a CD-ROM reader already installed in one bay; and a half-height bay with a diskette drive already installed in the bay.

Seven hot-swap SCSI hard disk drive bays accessible from the front of the chassis.

The bays are secured behind a lockable front door where the drives can be swapped in or out of the system without powering it down, if RAID is configured in the system.

SCSI backplane is Ultra-2 (LVD) ready.

Integrated dual Universal Serial Bus (USB) ports.

One standard power supply module with a slot available for an additional redundant

power supply module. When an additional power supply module is installed, both the standard and additional redundant power supply module slots become hot swappable.

Hardware monitors (temperature, fans, and voltage) and software monitors to

indicate failures.

1-4 System Overview

Mechanical: Keylock at the front of the chassis and two metal padlocks loops (one at

the back of each side panel). Three intrusion sensor switches for the front, left and right side of the chassis. Two of the three intrusion sensor switches (left and right side intrusion sensor switches only) become power inter-lock switches when two power supplies are installed.

System Chassis

The system chassis is an easy-to-expand, fabricated metal structure. The major system components are shown in the following illustrations.

System Chassis (Left Side View)

A. Removable media bays (2)

B. Speaker/Switch assembly

C. System board

D. Front input fan

E. Rear exhaust fan

F. Second rear exhaust fan (Optional)

G. Intrusion/Interlock switch - Side Covers

H. Intrusion switch - Front Cover

System Overview 1-5

System Chassis (Right Side View)

A. CD-ROM drive

B. Removable media bay

C. 1.44 MB 3.5"diskette drive

D. SAF-TE board

E. SCSI disk drive bays (7)

F. SCSI backplane board

G. Fans, behind SCSI disk drive bays (2 standard plus 1 optional)

H. Optional fan*

I. Intrusion/Interlock switch

J. Standard power supply

K. Power supply module slots (one standard power supply slot

and one optional power supply slot)

L. Power supply status LED*

M. DC power LED*

N. Power available switch*

O. Power supply distribution board*

*Part provided with optional power supply kit.

1-6 System Overview

Power Supply

The ATX300 watt power supply is switch-selectable for 115 or 230 Vac at an operating frequency of 50/60 Hz. It is designed to comply with existing emission standards and provides sufficient power for a fully loaded system configuration. The power supply voltage selection switch is factory set to 115Vac for systems used in the United States; it is set to 230Vac for systems used in Europe.

Peripheral Bays

The system supports a variety of standard PC AT-compatible peripheral devices. The chassis includes these peripheral bays:

A 3.5-inch front panel bay for mounting the standard 3.5" diskette drive (supports

720 KB and 1.44 MB diskette media)

Four 5.25-inch removable media front panel bays for mounting half-height 5.25-inch

peripheral devices: standard CD ROM drive and optional tape drives, etc.

Seven hot-swap SCSI hard disk drive bays for mounting up to seven SCSI hard disk

drives in easily removable drive carriers.

Note:

plane that require an 80-pin single connector attachment (SCA) connector on the drives that you install.

SAF-TE Board

The system has a SAF-TE (SCSI Accessed Fault Tolerant Enclosure) board that provides an interface for the disk subsystem to automatically integrate with peripheral packaging that supports status signals, hot swapping drives, and enclosure monitoring.

The transport mechanism for the standardized alert detection and status reporting is the SCSI bus. Disk drives, power supplies, cooling fans, and temperature are continually monitored and the conditions then reported over the SCSI bus to the system. When used with RAID management software the user can be alerted of impending or imminent disk conditions requiring attention. This allows the user to react to conditions that could normally go unnoticed until data loss.

The SCSI hard disk drive bays contain a hot-swap back

System Overview 1-7

System Board Features

The system board offers a “flat” design with the processor and memory subsystems residing on the board. This figure shows the major components on the system board. The following subsections describe the system board major components.

A C

W V

U T

Pri.

Sec.

System Board

A. Secondary processor connector N. Server management connector

B. Primary processor connector O. Narrow SCSI connector

C. Fan connectors P. Wide SCSI connector

D. Main power connector Q. Memory DIMM sockets

E. Diskette drive connector R. PCI slots for add-in boards

F. Front panel reset connector S. ISA slots for add-in boards

G. Speaker connector T. USB connector

H. Not used U. RJ-45 network controller connector

I. Front panel power switch connector V. Serial port B (COM 2) connector

J. Lithium backup battery W. VGA monitor port connector

K. System fan connector X. Parallel port connector

L. IDE connectors, primary and secondary Y. Serial A (COM 1) connector

M. Configuration jumper blocks Z. Keyboard and Mouse PS/2 compatible connectors

1-8 System Overview

Pentium Processor

Depending on system configuration, each system includes one or two Pentium processors. Each Pentium processor is packaged in a Single Edge Contact (S.E.C.) cartridge. or Single Edge Contact Cartridge Version 2 (SECC2). The cartridge includes the processor core with an integrated 16 KB primary (L1) cache; the secondary (L2) cache; a thermal plate (not included in the SECC2); and a back cover. The processor implements the MMX™ technology and the processor’s numeric coprocessor significantly increases the speed of floating-point operations.

The processor external interface operates at a maximum of 100 MHz. The second-level cache is located on the substrate of the processor cartridge. The cache includes burst pipelined synchronous static RAM (BSRAM). The L2 cache is offered in 512 KB configurations only, with error correcting code (ECC).

System Memory

The system board contains four 168-pin DIMM sockets. Memory is partitioned as four banks of SDRAM DIMMs, each providing 72 bits of noninterleaved memory (64-bit main memory plus ECC). Your system may include from 32 MB to 1 GB of memory, using up to four DIMMs.

System memory begins at address 0 and is continuous (flat addressing) up to the maximum amount of DRAM installed (exception: system memory is noncontiguous in the ranges defined as memory holes using configuration registers). The system supports both base (conventional) and extended memory.

System Overview 1-9

I/O Expansion Slots

The server's expansion capabilities meet the needs of file and application servers for high performance I/O by providing a combination of PCI local bus and ISA connectors.

The system board has two full-length ISA bus connectors. One of the connectors shares a chassis expansion slot with a PCI connector. ISA features:

Bus speed up to 8.33 MHz

16-bit memory addressing

8- or 16-bit data transfers

Plug and Play ready.

The system board has four full-length PCI connectors. One of the connectors shares a chassis expansion slot with an ISA connector. PCI features:

Bus speed up to 33 MHz

32-bit memory addressing

5 V signaling environment

Burst transfers up to a peak of 264 MB/s

8-, 16-, or 32-bit data transfers

Plug and Play ready

Parity enabled.

1-10 System Overview

Real-Time Clock/Calendar

The real-time clock provides system clock/calendar information stored in a non-volatile memory (NVRAM). The real-time clock battery provides power backup for the realtime clock.

BIOS

A BIOS and Setup Utility are located in the Flash EPROM on the system board and include support for system setup and PCI/ISA Plug-and-Play auto-configuration. A number of security, reliability, and management features also have been incorporated to meet vital server needs.

IDE Controller

The system includes a dual channel enhanced IDE interface controller. The controller has a primary and secondary connector located on the system board, each connector supporting a master and a slave device. The IDE controller provides support for the internally mounted CD-ROM and an optional tape device.

Network Controller

The system board includes a 10BASE-T/100BASE-TX network controller based on the Intel 82558 Fast Ethernet PCI Bus Controller. As a PCI bus master, the controller can burst data at up to 132 MB/sec. The controller contains two receive and transmit FIFO buffers that prevent data overruns or underruns while waiting for access to the PCI bus. The controller has the following:

32-bit PCI bus master interface (direct drive of bus), compatible with PCI Bus

Specification, Revision 2.1

Chained memory structure with improved dynamic transmit chaining for

enhanced performance

Programmable transmit threshold for improved bus utilization

Early receive interrupt for concurrent processing of receive data

On-chip counters for network management

Autodetect and autoswitching for 10 or 100 Mbps network speeds

Support for both 10 Mbps and 100 Mbps networks, capable of full or half

duplex, with back-to-back transmit at 100 Mbps.

The network status LEDs on the system board indicate:

Transmit/receive activity on the LAN

Valid link to the LAN

10/100 Mbps transfer mode.

System Overview 1-11

SCSI Controller

The system board includes an embedded dual Symbios Logic SYM53C875, PCI SCSI host adapter. The SYM53C875 contains two independent SCSI controllers that share a single PCI bus master interface. Internally, each controller is identical, capable of operations using either 8- or 16-bit SCSI providing 10 MB/s (Fast-10) or 20 MB/s (Fast-20) throughput, or 20 MB/s (Ultra) or 40 MB/s (Ultra-wide) throughput. As implemented on the system board, controller A attaches to an Ultra-2 SCSI backplane that supports up to seven Ultra-2 SCA drives. Controller B may be used to support SCSI devices in the removable media bays.

Video Controller

The system has a high-performance SVGA subsystem that supports the following:

BIOS compatibility with VGA, EGA, CGA, Hercules Graphics, and MDA

2 MB of Video Random Access Memory (VRAM) video buffer

16-bit bus for high-speed display memory access

Hardware accelerated bit block transfers (BITBLT)

Display power management system

Supports 72Hz refresh, non-interlaced at: 640x480, 800x600, 1024x768, or

1280x1024 resolutions

Displays of up to 16M colors at 640x480 and 800x600 resolutions, 64K colors at

1024x768 resolutions and 256 colors at 1280x1024 resolutions.

1-12 System Overview

Peripheral Controller

The advanced integrated peripheral controller supports two serial ports, one parallel port, diskette drive, PS/2-compatible keyboard and mouse, and integrated Real Time Clock (RTC). The system provides the connector interface for each port.

Serial Ports

Both serial ports are relocatable. Each serial port can be set to one of four different COM ports and can be enabled separately. When disabled, serial port interrupts are available to add-in boards.

Parallel Port

One IEEE 1284-compatible 25-pin bidirectional EPP (supporting levels 1.7 and 1.9) parallel port is provided. BIOS programming enables the parallel port and determines the port address and interrupt. When disabled, the interrupt is available to add-in boards.

External Device Connectors

The external I/O connectors provide support for a PS/2 compatible mouse and a keyboard, connectors for VGA monitor, 2 serial port connectors, a parallel port connector and two USB connections.

System Board Management Controller (BMC)

Server management is concentrated in the System Board Management Controller (BMC). The BMC and associated circuitry are powered from a 5Vdc standby voltage, which remains active when system power is switched off, but the ac power source is still on and connected.

The BMC supports the Emergency Management Port (EMP) Console, which allows remote server management via a modem or direct connection to a manager system. Events monitored by the manager system include over-temperature and over-voltage conditions, fan failure, or chassis intrusion.

Information on the Emergency Management Port (EMP) Console may be found in Appendix C of this User’s Guide.

System Overview 1-13

System Security

To help prevent unauthorized entry or use of the system, the system includes a full lockable front panel and Server Management software that monitors the system intrusion switches.

Security with Mechanical Locks and Monitoring

The front panel of the tower-based system contains a mechanical lock to prevent access to the front of the computer chassis. In addition, each side cover contains a padlock loop (padlock not provided) located on the rear of the chassis to prevent removal of the side covers and access to the inside of the computer chassis

The computer chassis includes an intrusion switch for the front cover and intrusion/interlock switches for both the left side and the right-side covers (as viewed from the front). When any these covers are opened, the switch transmits an alarm signal to the system board, where server management software processes the signal. The side cover switches also operate as interlock switches. That is if only one power supply module is installed the switches operate as intrusion switches or if two power supply modules are installed the switches operate as inter-lock switches controlling power shut down to the system for safety reasons.

Security with the rack-mount system is identical to the tower-based system stated above, except that there is no front cover associated with the rack-mount system.

Software Locks via the System Setup Utility

The BIOS Setup Utility and the System Setup Utility (SSU) provide a number of security features to prevent unauthorized or accidental access to the system. Once the security measures are enabled, access to the system is allowed only after the user enters the correct password(s). For example:

Enable the keyboard lockout timer so that the server requires a password to

reactivate the keyboard and mouse after a specified time-out period1 to 120 minutes.

Set and enable an administrative password.

Set and enable a user password

Set secure mode to prevent keyboard or mouse input and to prevent use of the

front panel reset and power switches.

Activate a hot-key combination to enter secure mode quickly.

Disable writing to the diskette drive when secure mode is set.

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