Hp COMPAQ PROLIANT 4500 MAINTENANCE AND SERVICE GUIDE
NOTICE
The information in this guide is subject to change without notice.
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TECHNICAL OR EDITORIAL ERRORS OR OMISSIONS CONTAINED HEREIN;
NOR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM
THE FURNISHING, PERFORMANCE, OR USE OF THIS MATERIAL.
This guide contains information protected by copyright. No part of this guide may be
photocopied or reproduced in any form without prior written consent from Compaq
Computer Corporation.
© 1995 Compaq Computer Corporation.
All rights reserved. Printed in the U.S.A.
Compaq, Systempro, Deskpro, Compaq Insight Manager,
Registered U.S. Patent and Trademark Office.
ProSignia, Systempro/XL, ProLiant, NetFlex, ROMPaq, and QVision are trademarks of
Compaq Computer Corporation.
The software described in this guide is furnished under a license agreement or
nondisclosure agreement. The software may be used or copied only in accordance with
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Product names mentioned herein may be trademarks and/or registered trademarks of their
respective companies.
MAINTENANCE AND SERVICE GUIDE
Compaq ProLiant 4500 Servers
First Edition (May 1995)
Text Number 188470-001
CHMP
v
PREFACE
This Maintenance and Service Guide is a troubleshooting guide that can be used for
reference when servicing the Compaq ProLiant Family of Servers.
Compaq Computer Corporation reserves the right to make changes to Compaq
ProLiant 4500 Servers without notice.
Symbols
The following text and symbols mark special messages throughout this guide:
WARNING: Text set off in this manner indicates that failure to follow
directions in the warning could result in bodily harm or loss of life.
CAUTION: Text set off in this manner indicates that failure to follow
directions could result in damage to equipment or loss of data.
IMPORTANT: Text set off in this manner presents clarifying information or
specific instructions.
NOTE: Text set off in this manner presents commentary, sidelights, or interesting
points of information.
Technician Notes
WARNING: Only authorized technicians trained by Compaq should
attempt to repair this equipment. All troubleshooting and repair procedures are detailed to allow only subassembly/module level repair. Because of the complexity of the individual boards and subassemblies, no
one should attempt to make repairs at the component level or to make
modifications to any printed wiring board. Improper repairs can create a
safety hazard. Any indications of component replacement or printed
wiring board modifications may void any warranty.
CAUTION: To properly ventilate your system, you must provide at least
12 inches (30.48 cm) of clearance at the front and back of the computer.
CAUTION: The computer is designed to be electrically grounded.
To ensure proper operation, plug the AC power cord into a properly
grounded AC outlet only.
Maintenance and Service Guide
vi Preface
Locating Additional Information
The following documentation is available to support these products:
n User Documentation
n Compaq Service Quick Reference Guide
n Service Training Guides
n Compaq Service Advisories and Bulletins
n Compaq QuickFind
n Compaq Insight Manager 2.0
Maintenance and Service Guide
vii
CONTENTS
Chapter 1
ILLUSTRATED PARTS CATALOG
Compaq ProLiant 4500 Server 1-1
Mechanical Exploded View of the Compaq ProLiant 4500 1-1
Components Exploded View of the Compaq ProLiant 4500 1-2
Spares Parts List 1-3
Chapter 2
REMOVAL AND REPLACEMENT PROCEDURES
ELECTROSTATIC DISCHARGE INFORMATION 2-1
PREPARATION PROCEDURES 2-2
POWER SUPPLY SAFETY INTERLOCK 2-2
REMOVAL AND REPLACEMENT PROCEDURES 2-3
Front Bezel Door/Side Access Panel 2-3
System Unit Cover 2-4
Mass Storage Devices 2-5
Removable Media Storage Devices 2-5
Hot-Pluggable Hard Drives 2-7
Important Guidelines About Replacing Hot-Pluggable Hard Drives 2-7
Replacing Hot-Pluggable Drives 2-8
Cable Folding Routing Diagrams 2-9
Cable Diagram for Diskette Drive 2-9
Cable Diagram for Removable Media Storage Devices 2-10
Cable Diagram for Internal Fast-Wide SCSI-2 Device 2-10
Boards 2-11
Hot-Pluggable Drive Backplane Board 2-11
Memory 2-12
System Board 2-14
Processor Board 2-15
Option Boards 2-16
Power Supply 2-17
Miscellaneous Parts 2-18
Rear Fan 2-18
Lower Front Fan 2-19
Plenum Fan 2-20
Battery/Clock Module 2-21
Maintenance and Service Guide
viii Contents
Chapter 3
DIAGNOSTIC TOOLS
Utility Access 3-1
POWER-ON SELF-TEST (POST) 3-2
POST Error Messages 3-3
DIAGNOSTICS (DIAGS) 3-13
Diagnostic Error Codes 3-13
DRIVE ARRAY ADVANCED DIAGNOSTICS (DAAD) 3-25
Starting DAAD 3-25
DAAD Diagnostic Messages 3-26
RAPID RECOVERY SERVICES 3-35
Automatic Server Recovery 3-35
Configuring the Server for Automatic Server Recovery (ASR) 3-37
Server Health Logs 3-39
System Configuration History Files 3-41
ROMPaq 3-41
Chapter 4
SWITCH AND JUMPER INFORMATION
SYSTEM BOARD 4-1
System Maintenance Switch Settings SW1 4-2
SCSI DEVICES 4-2
COMPAQ NETFLEX-2 CONTROLLER 4-5
Chapter 5
PHYSICAL AND OPERATING SPECIFICATIONS
System Unit Specifications 5-2
Power Supply Specifications 5-3
Redundant Power Supply Specifications 5-4
SIMM Specifications 5-5
Internal Diskette Drives 5-5
CD-ROM Specifications 5-6
SMART SCSI Array Controller 5-7
550-MB Pluggable Fast-SCSI-2 Drive Specifications 5-7
1.05-GB Pluggable Fast-SCSI-2 Drive Specifications 5-7
Maintenance and Service Guide
Contents
ix
Chapter 5 Continued...
2.1-GB Pluggable Drive Specifications 5-8
4.3-GB Pluggable Drive Specifications 5-8
Integrated Fast-Wide SCSI-2 Controller 5-8
32-Bit Fast-Wide SCSI-2/E Controller 5-9
Integrated Fast-SCSI-2 Controller 5-9
32-Bit Fast-SCSI-2 Controller 5-9
NetFlex-2 ENET-TR Controller 5-10
NetFlex-3/E Controller 5-10
Maintenance and Service Guide
Chapter 1
1-1
ILLUSTRATED PARTS
CATALOG
This chapter provides the illustrated parts breakdown and a spare parts list for the family of
Compaq ProLiant 4500 Servers.
Figure 1-1. Exploded View of the Compaq ProLiant 4500 Server Mechanical Parts
Maintenance and Service Guide
1-2 Illustrated Parts Catalog
Maintenance and Service Guide
Figure 1-2. Exploded View of the Compaq ProLiant 4500 Server System Components
Illustrated Parts Catalog
1-3
Table 1-1
Spares Parts List - Compaq ProLiant 4500
Item Description Part Number
CHASSIS
1
Chassis 199731-001
2 Hood 148593-001
3 Side Access Panel 148592-001
4 Front Bezel Door 188487-001
5 Speaker 148590-001
6 Power Supply/Inter-Lock Switch 148583-001
7 Bezel Kit (1/6, 1/3, 1/2 Height - Qty 5 each) and Empty Hot-
Pluggable Drive Cover
8 Foot 148580-001
9 System Fan 148581-001
10 Chassis Brace with Board Guide (3 parts) 199732-001
11 Plenum Fan 199728-001
12 Lower Front Fan (under drive cage) 189916-001
13 Modem Bracket 148723-001
14 Key-Lock Assembly 148725-001
15 Thumb Screw Assembly (Qty 3) 148594-001
16 Front Bezel Guides (Qty 5) 148724-001
17 Board Guide (Lower) 148744-001
18 Board Guide for Processor and Memory (Rear Fan) 199733-001
19 Bezel Switch Cover 148745-001
20 Logo Kit (Qty 2) 188488-001
21 Drive Guide and Ground Spring (Qty 5 each) 146771-001
22 Slot Cover (Qty 5) 141081-001
23 SCSI Cover 190170-001
SYSTEM COMPONENTS
24 Power Supply 188406-001
25 Redundant Power Supply 488 W (Option) 163828-001
BOARDS
26 System I/O Board 188414-001
27 Processor Board 5/100 MHz 184793-001
28 Hot-Pluggable Drive Backplane Board (Wide SCSI) 188490-001
29 Pass-Thru Board (Wide SCSI) 199612-001
MEMORY
30 Memory Expansion Board 139947-001
31 4-MB SIMM (80ns) 118741-001
8-MB SIMM (80ns) 128954-001*
16-MB SIMM (80ns) 139143-001*
32-MB SIMM (80ns) 139949-001*
4-MB SIMM (70ns) 141754-001*
8-MB SIMM (70ns) 141755-001*
16-MB SIMM (70ns) 149947-001*
32-MB SIMM (70ns) 149948-001*
64-MB SIMM (70ns) 188489-001*
4-MB SIMM (60ns) 139139-001*
211449-201
Continued
Maintenance and Service Guide
1-4 Illustrated Parts Catalog
Spares Parts List - Compaq ProLiant 4500 Continued
Item Description Part Number
8-MB SIMM (60ns) 139140-001*
16-MB SIMM (60ns) 139141-001*
32-MB SIMM (60ns) 139142-001*
MASS STORAGE
33 550 MB Pluggable Fast-SCSI-2 Drive 146799-001
34 1.05 GB Pluggable Fast-SCSI-2 Drive 146717-001
35 2.1 GB Pluggable Fast-SCSI-2 Drive 199428-001
36 4.3 GB Pluggable Fast-SCSI-2 Drive 199584-001*
37 2.1 GB Pluggable Fast-Wide SCSI-2 Drive 199643-001*
38 4.3 GB Pluggable Fast-Wide SCSI-2 Drive 199598-001*
39 Hot-Pluggable Tray Adapter (Fast-Wide SCSI-2) 199656-001*
40 Hot-Pluggable Tray Adapter (Fast-SCSI-2) 146781-001
41 Tray Load CD-ROM Drive 142223-201
42 1.44 MB, 3.5" Diskette Drive (Standard) 144207-201
43 1.44 MB, 3.5" Diskette Drive (Option) 112565-001*
44 1.2 MB, 5.25" Diskette Drive 112566-001
45 2/8-GB DAT Drive 142074-201
46 525-MB ACA Tape Drive 142073-201
47 4/16-GB TurboDAT Drive 199464-201
48 TurboDAT Autoloader 199466-201
49 1.2-GB Tape Drive 199615-201*
CABLE KITS
50 LED Cables 148585-001
51 Internal Fast-Wide SCSI-2 Cable, 23” 199606-003**
52 2-Device Internal Cable with Terminator, 36” 148728-001**
53 Diskette Cable 143706-001**
54 External SCSI Signal Cable 6' 146776-001
55 External 100-Pin to 50-Pin Cable 142159-001
56 Loop Back Cable (2 CH NIC) 142254-001*
57 Loop Back Cable (NetFlex) 142054-001*
58 2 Channel Ethernet "Y" Cable 197134-001
KEYBOARDS
59 Keyboard, U.S. English 160648-101*
Keyboard, U.K. English 160648-103*
Keyboard, German 160648-104*
Keyboard, French 160648-105*
Keyboard, Italian 160648-106*
Keyboard, Spanish 160648-107*
Keyboard, Danish 160648-108*
Keyboard, Norwegian 160648-109*
Keyboard, Swedish/Finnish 160648-110*
Keyboard, Swiss 160648-111*
Keyboard, French Canadian 160648-112*
Keyboard, Portuguese 160648-113*
Keyboard, Turkish 160648-114*
Keyboard, Greek 160648-115*
Keyboard, Latin American 160648-116*
* Not Shown
** Cables shown in chapter 2 of this guide
Continued
Maintenance and Service Guide
Illustrated Parts Catalog
1-5
Spares Parts List - Compaq ProLiant 4500 Continued
Item Description Part Number
Keyboard, Arabic 160648-117*
Keyboard, Belgian 160648-118*
Keyboard, BHCSY 160648-120*
Keyboard, Hungary 160648-121*
Keyboard, Polish 160648-122*
Keyboard, Slovakia 160648-123*
Keyboard, Russia 160648-124*
Keyboard, Czech 160648-129*
MISCELLANEOUS
60 Maintenance and Service Guide 188491-001*
61 Administrator's Guide, English 188485-001*
Administrator's Guide, German 188485-041*
Administrator's Guide, French 188485-051*
Administrator's Guide, Italian 188485-061*
Administrator's Guide, Spanish 188485-071*
Administrator's Guide, Japanese 188485-191*
Administrator's Guide, Dutch 188485-331*
62 System ROMpaq 143198-001*
63 Option ROMpaq 142207-001*
64 RTC Chip with Battery 149344-001*
65 Shipping Box 148577-001*
66 Shipping Buns and Plastic Bag 148726-001*
67 Power Supply Maintenance Key (Qty 5) 148757-001*
68 Drive Backplane ROM 146705-001
OPTIONS
69 SMART Controller 181132-001
70 Fast-SCSI-2/E Controller 142040-001*
71 Fast-Wide SCSI-2/E Controller 199634-001*
72 NetFlex Controller 142041-001*
73 NetFlex-2 Controller 142222-001*
74 NetFlex-3/E Controller 169801-001
75 NetFlex-3 100 Base-TX Upgrade Module 169805-001
76 NetFlex-3 100 VG-AnyLAN Upgrade Module 169803-001
77 Token Ring Module 142042-001*
78 DualPort Ethernet Controller 142151-001
79 2400 Baud LTE Modem 121250-001
80 2400 Baud LTE Modem (DAA) 127831-001*
81 SpeedPaq Modem (US only) 199906-001
* Not Shown
Maintenance and Service Guide
Chapter 2
2-1
REMOVAL AND
REPLACEMENT PROCEDURES
This chapter provides subassembly/module-level removal and replacement procedures for the
Compaq ProLiant 4500 Family of Servers. After completing all necessary removal and
replacement procedures, run the DIAGNOSTICS program to verify that all components
operate properly.
NOTE: Refer to the support software guide for procedures on using the
Compaq System Configuration utility when installing or removing expansion
boards, mass storage devices, and Extended Industry Standard Architecture
(EISA) options.
To service Compaq ProLiant 4500 Servers, you need:
n Torx T-15 screwdriver
n Power Supply Service Maintenance Key
n Ethernet loopback plug
n NetFlex loopback plug
n System Configuration software
n Diagnostics software
n Drive Array Advanced Diagnostics software
ELECTROSTATIC DISCHARGE
INFORMATION
A discharge of static electricity can damage static-sensitive devices or microcircuitry. Proper
packaging and grounding techniques are necessary precautions to prevent damage. To prevent
electrostatic damage observe the following precautions:
n Transport products in static-safe containers such as conductive tubes, bags, or boxes.
n Keep electrostatic-sensitive parts in their containers until they arrive at static-free stations.
n Cover work stations with approved static-dissipating material. Provide a wrist strap
connected to the work surface and properly grounded tools and equipment.
n Keep work area free of non-conductive materials such as ordinary plastic assembly aids and
foam packing.
n Always be properly grounded when touching a static-sensitive component or assembly.
n Avoid touching pins, leads or circuitry.
n Always place drives PCB assembly side down on the foam.
n Use conductive field service tools.
Maintenance and Service Guide
2-2 Removal and Replacement Procedures
PREPARATION PROCEDURES
CAUTION: The Compaq ProLiant 4500 Server should always be operated with
Before beginning any of the removal and replacement procedures, complete the following steps:
1. Turn the computer and any peripheral devices off.
2. Disconnect the AC power cord from the AC outlet, then from the server.
3. Disconnect all external peripheral devices from the server.
POWER SUPPLY SAFETY INTERLOCK
The Compaq ProLiant 4500 Server is equipped with a safety interlock switch to minimize the risk
of exposure to high voltage and maintain proper air flow for cooling of the processor and mass
storage devices. When the side access panel is removed, the power supply is automatically
disabled. This safety feature can be defeated with a Service Maintenance Key (Spares Part
Number 148757-001) if power is required when servicing the server with the side access panel
removed.
WARNING: High voltage present. Extreme care must be taken when running
the Compaq ProLiant 4500 Server with the system unit cover removed and the
safety interlock defeated.
the system unit cover on. Proper cooling will not be achieved with the system
unit cover off.
Figure 2-1. Power Supply Interlock Defeat
Maintenance and Service Guide
Removal and Replacement Procedures
2-3
REMOVAL AND REPLACEMENT
PROCEDURES
Front Bezel Door/Side Access Panel
WARNING: High voltage present. Extreme care must be taken when running
the Compaq ProLiant 4500 Server without the system unit cover on.
Figure 2-2. Opening Front Bezel Door
1. Unlock front bezel door and swing open.
Figure 2-3. Removing the Side Access Panel
2. Loosen slotted thumb screws at front panel.
Maintenance and Service Guide
2-4 Removal and Replacement Procedures
3. Slide the side access panel forward and then lift out.
4. Reverse steps for replacing side access panel.
System Unit Cover
Figure 2-4. Removing the Front Bezel Door
1. Lift and remove the front bezel door.
Figure 2-5. Removing the System Unit Cover
2. Unscrew and remove screws at front panel.
3. Slide system unit cover forward and then up.
4. Reverse steps for replacing system unit cover.
Maintenance and Service Guide
Removal and Replacement Procedures
2-5
Mass Storage Devices
The Compaq ProLiant 4500 Server contains two areas for mass storage devices: the removable
media area and the hot-pluggable hard drive bays.
Figure 2-6. Mass Storage Device Locations and Bay Numbers
Removable Media Storage Devices
Table 2-1 shows the supported mass storage devices and their supported locations.
Table 2-1
Removable Media Bay Configurations
Storage Bays
Mass Storage Device
1.44-MB, 3.5" Diskette Drive
1.2-MB, 5.25" Diskette Drive
2/8-GB Digital Audio Tape (DAT) Drive
525-MB ACA Tape Drive
4/16-GB Digital Audio Tape (DAT) Drive
CD-ROM Drive
1.2-GB Tape Drive
TurboDAT Drive w/ Autoloader (full height device
requires both bays, 5 and 6)
* CD-ROM drive in bay 5 must be removed.
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Maintenance and Service Guide
2-6 Removal and Replacement Procedures
Figure 2-7. Removing a Storage Device from the Removable Media
1. Unlock and open the front bezel door.
2. Remove the side access panel.
3. Disconnect power and signal cables from rear of drive.
4. Remove retaining screws.
5. Slide mass storage device out.
6. Reverse steps for installation.
Maintenance and Service Guide
Removal and Replacement Procedures
2-7
Hot-Pluggable Hard Drives
Hot-Pluggable hard drives used in combination with the Compaq Smart SCSI Array Controller
can be replaced while the power is still on.
NOTE: It is not necessary to set the SCSI ID jumpers on a Compaq replacement Hot-
Pluggable hard drive. The SCSI ID is set automatically by the backplane board and the
Hot-Pluggable tray when the drive is installed.
CAUTION: Before removing any Hot-Pluggable hard drive, read the guidelines listed in
the following section.
Important Guidelines About Replacing
Hot-Pluggable Hard Drives
When a drive configured for fault tolerance is replaced, the replacement drive will
automatically begin being restored when it is installed. When a drive is in the process of being
restored, the On-line LED will flash green. The LED will continue to flash until the drive is
completely restored.
Figure 2-8. Hot-Pluggable Hard Drive LED Indicators
When replacing Hot-Pluggable hard drives, these guidelines must be followed:
n Never remove more than one drive at a time. When a drive is replaced, the controller uses
data from the other drives in the array to reconstruct data on the replacement drive. If more
than one drive is removed, a complete data set is not available to reconstruct data on the
replacement drive(s).
n Never remove a working drive when another drive has failed. Drives that have been
failed by the controller are indicated by the amber Drive Failure LED on the drive tray.
Permanent data loss will occur if a working drive is removed when replacing a failed drive.
Maintenance and Service Guide
2-8 Removal and Replacement Procedures
n Never remove a drive while another drive is being rebuilt. A drives' On-line LED will be
flashing green whenever it is being rebuilt. A replaced drive is restored from data stored on
the other drives.
n Never turn a ProLiant Storage System off while the Server controlling it is powered on.
Doing so will cause the server's SMART Controller to mark the drives as "failed." This
could result in permanent data loss.
n If an on-line spare drive is installed, wait for it to complete rebuilding before replacing
the failed drive. When a drive fails, the on-line spare will become active and begin being
rebuilt as a replacement drive. After the on-line spare has been completely rebuilt (On-line
LED will be on solid), the failed drive should be replaced with a new replacement drive. Do
not replace the failed drive with the on-line spare.
n A POST error message (1786) will occur when the system is turned on if a drive(s) has
been replaced while the system is OFF. When this occurs you will be prompted to:
PRESS F1 TO BOOT THE SYSTEM AND REBUILD THE REPLACED DRIVE OR,
PRESS F2 TO BOOT THE SYSTEM AND NOT REBUILD THE DRIVE(S).
CAUTION: Pressing F2 will cause permanent data loss to the entire logical drive. F2
should be pressed only if all of the drives have been replaced or if complete data loss is
desired.
Replacing Hot-Pluggable Hard Drives
The front access drive bay area is located behind the front bezel door and can hold up to four half
height hot-pluggable hard drives.
Figure 2-9. Replacing a Hot-Pluggable Hard Drive
To Remove Drive
1. Press the releases on the ejector levers and swing levers out as shown.
This will pull the drives out of the backplane connector.
2. Slide the Hot-Pluggable hard drive out.
Maintenance and Service Guide
Removal and Replacement Procedures
2-9
To Install a Drive
1. Slide the hot-pluggable hard drive all the way into the drive cage.
2. Swing the ejector levers in to seat the drive tray's connector into the backplane connector.
Cable Folding and Routing Diagrams
CAUTION: When routing cables, always make sure that the cables are not in
a position where they will be pinched or crimped.
Cable Diagram for Diskette Drive
Figure 2-10. Diskette Drive Cable, Spares Part No. 143706-001
Maintenance and Service Guide
2-10 Removal and Replacement Procedures
Cable Diagram for Removable Media Storage Devices
(2-Device with Termination)
Figure 2-11. Removable Media Storage Device Cable,
Spares Part No. 148728-001
Cable Diagram for Internal Fast-Wide SCSI-2 Device
and Removable Media Storage Devices
Figure 2-12. Internal SCSI Cables,
Spares Part No. 199606-003
Spares Part No. 148728-001
Maintenance and Service Guide
Removal and Replacement Procedures
2-11
than one single-channel SCSI controller. A multi-channel controller, such as the
Boards
IMPORTANT: All SCSI hard drives on the same SCSI bus must be internal
(within the server) or in an external storage system, but not both. A
configuration with both internal and external SCSI hard drives requires more
Compaq SMART SCSI Array Controller, supports both internal and external
SCSI hard drives on separate SCSI buses.
IMPORTANT: All integrated 32-Bit SCSI-2 Controllers must be terminated by
connecting one of the following to the Fast-SCSI-2 or Fast-Wide SCSI-2
connector on the system board:
- Terminated SCSI cable
- SCSI cable that is also attached to the lower SCSI-2 connector of a
hot-pluggable backplane
- 50-pin Active Terminator (Spare Part No. 169178-001)
This section describes how to remove and replace the hot-pluggable hard drive backplane board,
memory modules, system, processor and option boards.
Hot-Pluggable Drive Backplane Board
Figure 2-13. Removing the Backplane Board
1. Label and remove all hard drives.
CAUTION: Be sure to label the drives before removing so that they can be
replaced in their original positions. Failure to do so will result in permanent data
loss.
Maintenance and Service Guide
2-12 Removal and Replacement Procedures
2. Remove processor board(s).
Label and disconnect all cables from the backplane board.
3.
Remove the Pass-Thru board.
4.
Remove retaining screws (8).
5.
Remove board.
6.
Reverse steps to replace backplane board.
7.
Memory
The ProLiant 4500 Server comes standard with 16 megabytes of system memory. Memory can be
expanded to a maximum of 1.024 gigabytes by installing a matched set of four JEDEC
4-, 8-, 16-, 32-, or 64-megabyte 60-, 70-, or 80-ns industry-standard SIMM modules in the eight
SIMM sockets on the system board for a total of 512 megabytes and the eight SIMM sockets on
the 512-megabyte Memory Expansion Board.
Figure 2-14. Removing the SIMM Module
1. Remove the side access panel.
Press the SIMM connector latches outward [A].
2.
Tilt the SIMM module forward [B].
3.
Lift the SIMM module out [C].
4.
To replace the SIMM module reverse these steps.
5.
Maintenance and Service Guide
IMPORTANT: Run Compaq System Configuration Utility if installed memory
size has changed. A POST error message will be displayed at power up
prompting you to run the System Configuration Utility.
Removal and Replacement Procedures
2-13
The following guidelines MUST be followed when installing or replacing memory:
coreecting (ECC) memory is based on the parity scheme; one byte data, one bit
Compaq SIMMs or JEDEC-compliant SIMMs that conform to this parity scheme
n SIMMs must be installed in matched sets of four at time; for example: four 16-megabyte
modules.
n Matched SIMMs must be the same size and speed.
n Install SIMM sets in bank 1 first, then in bank 2.
CAUTION: Use only JEDEC standard SIMMs. Non-JEDEC SIMMs may
adversely affect data integrity.
NOTE: The Compaq ProLiant 4500 requires that RAM be installed in
increments of four SIMMs at a time. The SIMMs must be the same size and
speed. The specific SIMM bit pattern required to support error checking and
parity. The data byte and parity are constructed of DRAMs that are "n"
locations deep by 4-bits wide or 1-bit wide and "n" can be any number. (that is,
"n" locations deep x 4-bits wide or "n" locations deep x 1-bit wide.) Use
only.
The following table shows typical memory configurations for the Compaq ProLiant 4500 Server.
Table 2-2
Example of SIMM Upgrade Combinations
System Board Expansion Board
Total Memory Bank 1 Bank 2 Bank 3 Bank 4
16 MB 4x4 MB
32 MB 4x8 MB
64 MB 4x8 MB 4x8 MB
64 MB 4x16 MB
128 MB 4x16 MB 4x16 MB
128 MB 4x32 MB
128 MB 4x8 MB 4x8 MB 4x8 MB 4x8 MB
192 MB 4x32 MB 4x16 MB
192 MB 4x16 MB 4x16 MB 4x16 MB
256 MB 4x64 MB
512 MB 4x64 MB 4x64 MB
512 MB 4x32 MB 4x32 MB 4x32 MB 4x32 MB
1024 MB 4x64 MB 4x64 MB 4x64 MB 4x64 MB
Maintenance and Service Guide
2-14 Removal and Replacement Procedures
System Board
NOTE: Be sure the switch settings on SW1 are set to the Tower configuration.
Figure 2-15. Removing the System Board
1. Remove all option boards.
2. Remove middle chassis brace.
3. Remove processor board and memory board.
4. Disconnect all cables from system board.
5. Remove retaining screws and push the three I/O panel release tabs.
6. Slide board toward front of chassis approximately 0.4 inches (1 cm) and lift board out.
7. Reverse steps to replace system board.
Maintenance and Service Guide
Removal and Replacement Procedures
2-15
Figure 2-16. System Board Connectors
Processor Board
Figure 2-17. Removing the Processor Board
1. Remove middle brace.
Pull board straight out.
2.
Reverse steps for processor board installation.
3.
Maintenance and Service Guide
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