Compaq AP500 User Manual
Professional Workstation AP500
Maintenance and Serv ice Guide
Second Edition (March 1999)
Part Number 338534-002
Spares Part Number 338561- 001
Compaq Computer Corporation
Notice
The information in this publ ication is subject to change without notice.
COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE FOR 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 INFORMATION IS PROVIDED “AS IS” AND COMPAQ
COMPUTER CORPORATION DISCLAIMS ANY WARRANTIES, EXPRESS, IMPLIED OR
STATUTORY AND EXPRESSLY DISCLAIMS THE IMPLIED WARRANTIES OF
MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE, GOOD TITLE AND AGAINST
INFRINGEMENT.
This publication contains i nf ormation protected by copyright. No par t of this publication may be
photocopied or reproduced in any form without prior written consent from Compaq Computer
Corporation.
1999 Compaq Computer Corporation.
All rights reserved. Printed in the U.S.A.
The software described in this guide is f ur nished under a license agreement or nondisclosure agreement.
The software may be used or copied only in accordance with the terms of the agreement.
Compaq, Compaq Insight Manager, ROMPaq, QVision, SmartStar t, NetFlex, QuickFind, PaqFax,
registered United States Patent and Trademark Office.
Netelligent, SoftPaq, QuickBlank, QuickLock, and PowerStorm are trademarks and/or service marks of
Compaq Computer Corporation.
Microsoft, MS-DOS, Windows, and Windows NT are registered trademarks of Microsoft Corporation.
Other product names mentioned herein may be trademarks and/or registered trademarks of their respect ive
companies.
Compaq Professional Workstation AP500 Maintenance and Service Guide
Second Edition (March 1999)
Part Number 338534-002
Spare Part Number 338561-001
Contents
About This Guide
Text Conventions.......................................................................................................................vii
Symbols in Text........................................................................................................................viii
Symbols on Equipment.............................................................................................................viii
Where to Go for Additional Help...............................................................................................ix
Other Information Sources..................................................................................................ix
Telephone Numbers.............................................................................................................ix
Chapter 1
Illustrated Parts Catalog
Mechanical Parts ......................................................................................................................1-1
System Components .................................................................................................................1-2
Spares Parts List.......................................................................................................................1-3
Chapter 2
Service Preliminaries
Compaq Technician Notes........................................................................................................2-1
Preliminary Warnings and Cautions.........................................................................................2-2
Electrostatic Discharge Information.........................................................................................2-3
Equipment Symbols..................................................................................................................2-3
Tools and Software Requirements............................................................................................2-4
Warranty Information...............................................................................................................2-4
iii
Chapter 3
Removal and Replacement Procedures
Serial Number...........................................................................................................................3-1
Service Preparations.................................................................................................................3-2
Cable Lock ...............................................................................................................................3-3
Workstation Feet.......................................................................................................................3-4
Side Access Panel.....................................................................................................................3-5
Front Bezel...............................................................................................................................3-6
Blank Drive Bezel....................................................................................................................3-7
EMI/Cooling Shield..................................................................................................................3-8
Speaker.....................................................................................................................................3-9
I/O Bracket Assembly ............................................................................................................3-10
Replacing the I/O Bracket Assembly...............................................................................3-11
Expansion Boards...................................................................................................................3-12
Identifying the PCI and ISA Expansion Slots..................................................................3-12
Removing a PCI or ISA Expansion Board......................................................................3-14
Removing a Symbios Wide Ultra2 PCI SCSI Controller ................................................3-15
Removing the Accelerated Graphics Port (AGP) Graphics Controller............................3-16
Removing the Card Guide...............................................................................................3-17
Removing the Backplane Board......................................................................................3-18
System Fan.............................................................................................................................3-19
Compaq Professional Workstation AP500 Maintenance and Service Guide
iv
Removal and Replacement Procedures continued
Mass Storage Devices.............................................................................................................3-21
Drive Positions................................................................................................................3-21
Hardware Screws............................................................................................................. 3-23
CD-ROM Drive or DVD-ROM Drive.............................................................................3-24
Diskette Drive .................................................................................................................3-26
Removing a 7200 rpm Hard Drive from Bays 5 or 6.......................................................3-28
Removing a 10,000-rpm Hard Drive from Bays 5 or 6...................................................3-31
Removing the Fan from a Hard Drive Installed in Bays 5 or 6 ......................................3-35
Removing a Hard Drive from the Removable Hard Drive Cage.....................................3-37
Installing a Hard Drive in the Removable Hard Drive Cage...........................................3-39
SCSI Cables and Guidelines...................................................................................................3-41
SCSI Cables.....................................................................................................................3-41
SCSI Guidelines for Installing SCSI Devices..................................................................3-42
SCSI Guidelines for Optimizing Performance ................................................................3-42
System Board Assembly.........................................................................................................3-43
System Board with Tray and Cage..................................................................................3-43
System Board Components..............................................................................................3-45
Dual Inline Memory Modules (DIMMs).........................................................................3-46
Important Guidelines for DIMM Installation ..................................................................3-46
Removing a DIMM.........................................................................................................3-47
Processor and Heatsink Assembly..........................................................................................3-48
Processor Power Module.................................................................................................3-49
Primary Processor Power Module Cable Insulator..........................................................3-50
External Battery......................................................................................................................3-51
Running Computer Setup ................................................................................................3-51
Installing the Battery.......................................................................................................3-52
Power Switch Cable Assembly...............................................................................................3-54
Power Supply..........................................................................................................................3-55
Chapter 4
Diagnostic Tools
Power-On Self-Test (POST).....................................................................................................4-2
POST Messages........................................................................................................................4-3
Troubleshooting Minor Problems.............................................................................................4-7
Power Problems.................................................................................................................4-8
Diskette Drive Problems....................................................................................................4-9
Display Problems ............................................................................................................4-10
Printer Problems..............................................................................................................4-11
Hard Drive Problems.......................................................................................................4-12
Hardware Installation Problems ......................................................................................4-13
CD-ROM Drive and DVD-ROM Drive Problems ..........................................................4-14
Memory Problems...........................................................................................................4-15
SCSI Problems................................................................................................................4-15
Network Problems...........................................................................................................4-16
Audio Hardware Conflicts...............................................................................................4-18
Diagnostic Tools continued
Compaq Setup and Diagnostics Utilities.................................................................................4-19
Accessing the Compaq Utilities Menu............................................................................4-19
Creating a Diagnostics Diskette.......................................................................................4-20
Computer Setup...............................................................................................................4-21
Computer Checkup (TEST).............................................................................................4-23
View System Information (INSPECT)............................................................................4-24
Managing a Diagnostics Partition....................................................................................4-25
Diagnostic Error Codes...........................................................................................................4-25
Microprocessor................................................................................................................4-26
Memory...........................................................................................................................4-27
Keyboard.........................................................................................................................4-27
Printer.............................................................................................................................. 4-28
Diskette Drive .................................................................................................................4-28
Serial Port........................................................................................................................4-29
Modem ............................................................................................................................4-29
Pointing Device...............................................................................................................4-29
CD-ROM Drive (IDE).....................................................................................................4-30
Tape Drive.......................................................................................................................4-30
Video...............................................................................................................................4-31
Audio...............................................................................................................................4-33
Network Interface............................................................................................................4-33
SCSI Error Codes...................................................................................................................4-34
Upgrading the ROM...............................................................................................................4-37
Local ROM Upgrade.......................................................................................................4-37
Remote ROM Flash.........................................................................................................4-38
FailSafe Boot Block ROM......................................................................................................4-39
Compaq Insight Manager .......................................................................................................4-41
Compaq Workstation SSD for Windows NT ..........................................................................4- 42
Remote Capability...........................................................................................................4-42
Silent Setup Command Line Interface.............................................................................4-42
Compaq Diagnostics for Windows NT...................................................................................4-43
v
Chapter 5
System Security
Security Features......................................................................................................................5-1
Password Security.............................................................................................................5-2
Windows NT Workstation Password.................................................................................5-6
National Keyboard Delimiter Characters ..........................................................................5-6
Advanced Security Management..............................................................................................5-7
Re-enabling Diskette Boot or Diskette Write....................................................................5-7
Re-enabling a Serial Port or Parallel Port..........................................................................5-8
QuickLock/QuickBlank.....................................................................................................5-8
Cable Lock Provision........................................................................................................5-9
Compaq Professional Workstation AP500 Maintenance and Service Guide
vi
Chapter 6
Jumper and Switch Information
Battery Jumpers........................................................................................................................6-2
Switch Settings.........................................................................................................................6-3
Hard Drives..............................................................................................................................6-4
32X Max CD-ROM Drive (IDE)..............................................................................................6-4
PowerStorm 300/AGP Graphics Controller..............................................................................6-5
Chapter 7
Physical and Operating Specifications
System Unit..............................................................................................................................7-2
325W Power Supply.................................................................................................................7-7
Diskette Drive...........................................................................................................................7-8
Zip Drive..................................................................................................................................7-9
CD-ROM Drive......................................................................................................................7-10
DVD-ROM Drive...................................................................................................................7-12
Hard Drives............................................................................................................................7-14
Audio System.........................................................................................................................7-19
Keyboard................................................................................................................................7-19
Mouse.....................................................................................................................................7-20
Graphics Controllers...............................................................................................................7-21
Network Controller.................................................................................................................7-25
RJ-45 Network Cable Specifications......................................................................................7-25
Chapter 8
External Connectors
Physical Location.....................................................................................................................8-1
Pin Assignments.......................................................................................................................8-3
Index
About This Guide
This guide is designed to be used as step-by-step instructions for installation, and as a reference for
operation, troubleshooting, and future upgrades.
IMPORTANT: The installation of options and servicing of this product should be performed
by individuals that are knowledgeable of the procedures, precautions, and hazards
associated with equipment containing hazar dous energy circuits.
vii
WARNING: Only authorized technicians trained by Compaq should attempt to
repair this equi pment. All troubleshooting and repair pr ocedures 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 make modifications to any printed wiring board. Improper
repairs can create a safety hazard. Any indications of component replacement or
printed wiring boa rd modifications may void any warranty.
WARNING: To reduce the risk of personal injury from electrical shock and
hazardous energy levels, only authorized service technicians should attempt to
repair this equi pment. Improper repairs could create conditions that are
hazardous.
Text Conventions
This document uses the following conventions to distinguish e l ements of text:
Keys Keys appear in boldface. A plus sign (+) between two
keys indicates that they should be presse d simultaneously.
USER INPUT User input appears in a different typeface and in
uppercase.
FILENAMES File names appear in upperca se italics.
Menu Options,
Command Names,
Dialog Box Names
COMMANDS,
DIRECTORY NAMES,
and DRIVE NAMES
Type When you are instructed to type information, type the
Enter When you are instructed to enter information, type the
These appear in initial capital letters.
These always appea r in uppercase.
information without pressing the Enter key.
information and then press the Ent e r key.
Compaq Professional Workstation AP500 Maintenance and Service Guide
viii
Symbols in Text
These symbols may be found in the te xt of this guide. They have the following meanings.
!
IMPORTANT: Presents clarifying information or specific instructions.
NOTE: Presents commentary, sidelights, or interesting points of information.
WARNING: Indicates that failure to follow directions in the warning could result in
bodily harm or loss of life.
CAUTION: Indicates that failure to follow directions could result in damage to
equipment or loss of information.
Symbols on Equipment
These icons may be located on equipment in areas where hazardous conditions may exist.
Any surface or area of the equipment marked with these symbols
indicates the presence of electrical shock hazards. Enclosed area
contains no operator serviceable parts.
WARNING: To reduce risk of injury from electrical shock hazards, do
not open this enclosure.
Any RJ-45 receptacle marked with these symbols indicates a Network
Interface Connection.
WARNING: To reduce risk of electrical shock, fire, or damage to the
equipment, do not plug telephone or telecommunications connectors
into this receptacle.
Any surface or area of the equipment marked with these symbols
indicates the presence of a hot surface or hot component. If this
surface is contacted, the potential for injury exists.
WARNING: To reduce the risk of injury from a hot component, allow
the surface to cool before touching.
Where to Go for Additional Help
Major sources of additional information are listed below.
Other Information Sources
In addition to this guide, the following information sources are available:
■ User Documentation
■ Compaq Service Quick Refere nce Guide
■ Service Training Guides
■ Compaq Service Advisories and Bulletins
■ Compaq QuickFind
■ Compaq Insight Manager
■ Compaq Download Facility: Call 1-281-518-1418.
Telephone Numbers
ix
For the name of your nearest Compaq Authorized Reseller:
In the United States, call 1-800-345-1518.
In Canada, call 1-800- 263-5868.
For Compaq technical support:
In the United States and Canada, call 1-800-OK-COMPAQ (For continuous qua lity improvement,
calls may be recor ded or monitored.)
For Compaq technical support phone num bers outside the United States and Canada, visit the
Compaq website at:
www.compaq.com
Compaq Professional Workstation AP500 Maintenance and Service Guide
Chapter 1
Illustrated Parts Catalog
This chapter provides an illustrated parts breakdo wn and a reference for spare parts for the
Compaq Professional Workstation AP500.
Mechanical Parts
1-1
100
11
12
10
49
24
100
9
4 98
6
2
1
Figure 1-1. Exploded view of the Compaq Professional Workstation AP500 mechanical parts
Compaq Professional Workstation AP500 Maintenance and Service Guide
1-2 Illustrated Parts Catalog
13
66
16
17
14
19 20
8
11
26
42
33
7
32
98
23
3
50
52
22
51
74
5
44 45
87
System Components
Figure 1-2. Exploded view of the Compaq Professional Workstation AP500 system components
Spares Parts List
Parts or components marked with an asterisk (*) are not illustrated.
Reference Description Spares Part #
MECHANICAL
1 Side Access Panel 329263-001
2 Front Bezel 338549-001
3 I/O Bracket (Expansion Board Assembly) 338563-001
4 Blank Drive Bezel (part of the Miscellaneous Plastic Kit) 329265-001
5 Backplane Board 338513-001
6 Hood 338565-001
7 Removable Hard Drive Cage 338557-001
1-3
Table 1-1
Compaq Professional Workstation AP500
Spares Parts List
SYSTEM
8 Speaker 328730-001
9 EMI/Cooling Shield (part of the Miscellaneous Hardware Kit) 338559-001
10 Workstation Feet 329264-001
11 Chassis 338547-001
12 System Fan (fan bracket included in Miscellaneous Hardware Kit) 338558-001
13 Power Supply, 325W 328563-001
14 System Board with Tray 400-, 450-, 500-MHz 402124-001
15 System Board with Tray 400-, 450-MHz 338548-001*
16 Intel Pentium II Processor, 400/100 MHz, 512K with heatsink 327648-001
17 Intel Pentium II Processor, 450/100 MHz, 512K with heatsink 328785-001
18 Intel Pentium III Processor, 500/100 Mhz, 512K with heatsink 116402-001*
19 Processor Power Module (Voltage Regulator Module)
For 350/400/450/500 MHz CPU
20 Processor Power Module (Voltage Regulator Module)
For 350/400/450 MHz CPU
329267-001
327660-001
21 Lock Security Bracket 199109-001*
Compaq Professional Workstation AP500 Maintenance and Service Guide
Continued
1-4 Illustrated Parts Catalog
Compaq Professional Workstation AP500 Spares Parts List
Reference Description Spares Part #
22 External Battery 160274-001
23 Expansion Board Slot Cover 141081-001
24 Power Switch and LEDs with Cable 329270-001
MEMORY
25 32-MB Memory Module (Registered 100-MHz SDRAM) 317747-001*
26 64-MB Memory Module (Registered 100-MHz SDRAM) 317745-001
27 128-MB Memory Module (Registered 100-MHz SDRAM) 317756-001*
28 256-MB Memory Module (Registered 100-MHz SDRAM) 317749-001*
MASS STORAGE
29 4.3-GB Wide Ultra2 SCSI Hard Drive 7200 rpm 349533-001*
30 4.3-GB Wide Ultra2 SCSI Hard Drive 10,000 rpm 386538-001*
31 9.1-GB Wide Ultra2 SCSI Hard Drive 7200 rpm 349534-001*
32 9.1-GB Wide Ultra2 SCSI Hard Drive 10,000 rpm 386539-001
Continued
33 18-GB Wide Ultra2 SCSI Hard Drive 10,000 rpm 386540-001
34 4.3-GB Wide-Ultra SCSI Hard Drive, 7200 rpm 339514-001*
35 4.3-GB Wide-Ultra SCSI Hard Drive, 10,000 rpm 336383-001*
386539-001*
36 9.1-GB Wide-Ultra SCSI Hard Drive 7200 rpm 339515-001*
37 9.1-GB Wide-Ultra SCSI Hard Drive 10,000 rpm 336384-001*
38 18-GB Wide-Ultra SCSI Hard Drive 10,000 rpm 336385-001*
39 6.4-GB Ultra ATA Hard Drive 166973-001*
40 10-GB Ultra ATA Hard Drive, 7200 rpm 330520-001*
41 Symbios Wide Ultra2 PCI SCSI Controller 114009-001*
42 1.44-MB Diskette Drive 179161-001
43 100-MB Zip Drive 401624-001*
44 32X Max CD-ROM Drive (IDE) 327659-001
45 DVD-ROM Drive 105771-001
46 12/24-GB DAT Drive 340593-001*
Continued
1-5
Compaq Professional Workstation AP500 Spares Parts List
Reference Description Spares Part #
47 4/8-GB SLR Drive 340591-001*
48 Hard Drive Mounting Bracket (Bays 5 and 6) 243231-001*
49 Fan and Cable for >7200 rpm Hard Drives Installed in Bay 5 or 6 329266-001
CABLE KITS
50 Miscellaneous Signal Cable Kit (CD-ROM Drive, HD, Diskette, Audio) 327649-001
51 SCSI cable, wide 338546-001
52 Wide Ultra2 SCSI cable 402222-001
53 SCSI adapter, 50- to 68-Pin (internal) 189638-001*
KEYBOARD AND MOUSE
54 Keyboard 269513-001*
55 3-Button Mouse 327716-001*
MONITOR
56 P75 Monitor 307815-xxx*
Continued
57 V75 Monitor 307713-xxx*
58 V90 Color Monitor 305602-xxx*
59 P900 Color Monitor 303502-xxx*
60 P1610 Monitor 305710-xxx*
61 P110 Monitor 284959-xxx*
62 TFT 5000:
Opal, TS, NA, TC099
Carbon, TS, NA, TC099
63 TFT 8000:
Opal, no protective panel, TC095, WW
Opal, with protective panel, TC095, WW
Carbon, no protective panel, TC095, WW
Carbon, with protective panel, TC095, WW
64 TFT 450:
Order TFT 450 spare part from the TFT 450 guide
115714-001*
115712-001*
307911-001*
102358-B24*
102359-B24*
102356-B24*
(PN 170431-001)*
65 TFT 500:
Order TFT 500 spare part from the TFT 500 guide
(PN 285012-001)*
Continued
Compaq Professional Workstation AP500 Maintenance and Service Guide
1-6 Illustrated Parts Catalog
Compaq Professional Workstation AP500 Spares Parts List
Reference Description Spares Part #
GRAPHICS
66 GLoria Synergy+ Graphics Controller 4-MB (AGP) 327599-001
67 GLoria Synergy+ 4-MB Memory Upgrade 327600-001*
68 GLoria Synergy+ 8 MB (PCI) Graphics Controller 298796-001*
69 PowerStorm 300 Graphics Controller (AGP) 338539-001*
70 Matrox Millennium G200 Graphics Controller 294409-001*
71 Matrox Millennium G200 8-MB Memory Upgrade 386047-001*
72 Matrox Productiva G100 Multi-Monitor Series Graphics Controller 101239-001*
CONTROLLERS
73 Compaq SMART-2SL Array Controller 242777-001*
74 Dual-Channel SCSI Controller 295626-001*
COMMUNICATIONS
75 Netelligent 16/4 TR PCI IBM UTP/STP Controller 301210-001*
Continued
76 Netelligent 16/4 TR PCI UTP/STP Controller 268010-001*
77 Netelligent 10 T/2 PCI UTP/Coax Controller 292857-001*
78 Netelligent 10 T/2 ISA UTP/Coax Controller 265618-001*
79 Netelligent 100 FDDI PCI SAS Fiber-SC 242506-002*
80 Netelligent 100 FDDI PCI DAS Fiber-UTP 242506-003*
81 Netelligent 100 FDDI PCI SAS Fiber-UTP 242506-004*
82 Netelligent 100 FDDI PCI SAS Fiber-MIC 242506-005*
83 Netelligent 56K PCI Fax Modem 321510-B21*
84 Netelligent 56K ISA Fax Modem 294912-001*
85 Compaq Fast Ethernet NIC NC3122 317453-001*
86 Compaq Fast Ethernet NIC NC3120 317606-001*
87 Compaq Ethernet NIC NC1120 317358-001
88 Compaq Fast Ethernet NIC NC3161 323556-001*
Continued
1-7
Compaq Professional Workstation AP500 Spares Parts List
Reference Description Spares Part #
SOFTWARE
89 Magellan Driver CD 297863-001*
90 Spaceball Driver CD 298033-001*
91 Microsoft Windows NT Workstation 4.0 CD 275573-xxx*
92 Compaq SmartStart for Workstations CD 275574-xx3/xx2(SP)*
93 Systems ROMPaq 275595-001*
94 Compaq Setup and Compaq Diagnostics for Workstations Diskette 275575-xxx*
MISCELLANEOUS
95 Magellan 3D Pointing Device (spacemouse) 297645-001*
96 Spaceball 3D Pointing Device 297644-001*
97 Compaq Multimedia Sound System (US) 294122-xxx*
98 Miscellaneous Plastic Kit (includes baffles*, card guide and
blank drive bezel)
99 Heatsink Bridge 327658-001*
Continued
329265-001
100 Miscellaneous Hardware Kit (includes EMI/Cooling Shield and System Fan
101 Rack Mounting Kit 338556-001*
102 Shipping Box with Buns (US) 329268-001*
103 Shipping Box with Buns (INTL) 329268-002*
104 SCSI Adapter, 68- to 50-Pin (external) 270229-001*
DOCUMENTATION
105 Maintenance and Service Guide 338561-001*
106 Illustrated Parts Map 338560-001*
107 Service Quick Reference Guide (revision -038 or later) 162212-001*
338559-001
Bracket)
Compaq Professional Workstation AP500 Maintenance and Service Guide
Chapter 2
Service Preliminaries
This chapter identifies the following service considerations:
■ Preliminary warnings and cautions
■ Electrostatic discharge information
■ Equipment symbols
■ Tools and software requirements
■ Warranty information
IMPORTANT: Adherence to the procedures and precautions described in this chapter is
essential for proper service.
Compaq Technician Notes
WARNING: To reduce the risk of personal injury from electrical shock and
hazardous energy levels, do not exceed the level of repair specified in these
procedures. Because of the complexity of the individual boards and
subassemblies, do not attempt to make repairs at the component level or make
modifications to a ny printed wiring board. Improper repairs could create conditions
that are hazardous.
2-1
WARNING: To reduce the risk of electric shock or damage to the equipment:
Disconnect power from the computer by unplugging the power cord from either
the electrical outlet or the computer.
Do not disable the power cord grounding plug. The grounding plug is an important
safety feature.
Plug the AC adapter or power cord into a grounded (earthed) elec trical outlet that
is easily accessible at all times.
CAUTION: To properly ventilate the system, you must provide at least 6 inches
(15 cm) of clearance at the front of the workstation and 3 inches (7.6 cm) at the
back.
IMPORTANT: Any indication of repair at the component level or modification of a printed
wiring board ma y void any warranty.
Compaq Professional Workstation AP500 Maintenance and Service Guide
2-2 Service Preliminaries
Preliminary Warnings and Cautions
The following should be noted when operating or servicing the Compaq Professional
Workstation AP500:
WARNING: To reduce the risk of electric shock or damage to the equipment:
■ Disconnect power from the system by unplugging all power cords
from either the electrical outlet or the Compaq Professional
Workstation AP500.
■ Do not disable the power cord grounding plug. The ground plug is
an important safety feature.
■ Plug the power cord into a grounded (earthed) electrical outlet that
is easily accessible at all times.
WARNING: To reduce the risk of personal injury from hazardous energy levels,
only authorized service technicians should attempt to repair this equipment.
Because of the complexity of the individua l 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.
CAUTION: The power supply in the Compaq Professional Workstation AP500 has
an auxiliary power section. This section is always active as long as the unit is
plugged into a live AC outlet. Be sure to turn off the switch and unplug the power
cord before performing any service work.
CAUTION: To properly ventilate the system, you must provide at least 6 inches
(15 cm) of clearance at the front of the workstation and 3 inches (7.6 cm) at the
back.
IMPORTANT: Any indications of component replacement or printed wiring board
modifications may void any warranty.
Electrostatic Discharge Information
A discharge of static electricity can damage static-sensitive devices or micro-circuitry. Proper
packaging and grounding techniques are necessary precautions to prevent damage. To prevent
electrostatic damage, observe the following precautions:
■ Transport products in static-sa fe containers (conductive tube s, bags, or boxes).
■ Keep electrostatic-sensitive parts in their containers until they arrive at static-free stations.
■ Cover workstations with approved static-dissipating material. Provide a wrist strap
connected to the work surface and properly grounded tools and equipment.
■ Keep work area free of non-conductive mater i als such as ordinary plastic assem bly a i ds
and foam packing.
■ Be sure you are always prope rly grounded when touching a static-sensitive component or
assembly.
■ Avoid touching pins, leads, or circuitry.
■ Always place drives PCB assembly-side down.
■ Use conductive field servic e tools.
2-3
Equipment Symbols
The following symbols are locat ed on applicable components of the worksta tion and should be
observed when servicing the workstation to avoid personal injury or damage to the components:
WARNING: Any surface or area of the equipment marked with these
symbols indicates the presence of a hot surface or hot component. If this
surface is contacted, the potential for injury exists. To reduce risk of
injury from a hot component, allow the surface to cool before touching.
WARNING: Any surface or area of the equipment marked with these
symbols indicates the presence of electrical shock hazards. Enclosed
area contains no operator serviceable parts. To reduce risk of injury from
electrical shock hazards, do not open this enclosure.
WARNING: Any RJ-45 receptacle marked with these symbols
indicates a Network Interface Connection. To reduce risk of electrical
shock, fire, or damage to the equipment, do not plug telephone or
telecommunications connectors into this receptacle.
Compaq Professional Workstation AP500 Maintenance and Service Guide
2-4 Service Preliminaries
Tools and Software Requirements
To service the workstation, you mi ght need:
■ Torx T-10 screwdriver
■ Torx T-15 screwdriver
■ Flat-blade screwdriver
■ Compaq Setup and Diagnostics Utility
IMPORTANT: Prior to servicing the workstation, be sure the drivers from the latest Compaq
Workstation SSD for Windows NT are installed. See Chapter 4 for installation procedures.
Warranty Information
The following warranties come standard with the workstation:
■ Standard Warranty—a three-year limited warranty that cover s three years on parts, one
year on labor carry-in, and one year of onsite service
■ Pre-Failure Warranty—a special warranty that extends the Compaq three-year limited
warranty by applying it to critical system components before they fail. This warranty
ensures that when you receive notification of a pre-failure condition through Compaq
Insight Manager or the Windows NT Event Log, the component is replaced under
warranty.
NOTE: For more information about Compaq Insight Manager, see Chapter 4.
The Pre-Failure War ranty covers the following workstation c omponents:
❏ SCSI hard drives
❏ Error Correcting Code (ECC) memory
❏ Pentium II processor
❏ Pentium III Processor
In addition to the above warrantie s, an optional Extended Warranty is available. If purchased,
this warranty extends the Standar d Warranty’s one year coverage for labor and onsite ser vic e for
two additional years.
IMPORTANT: Observe all warnings and cautions provided herein. Failure to do so may
void warranty for damaged components.
Chapter 3
Removal and Replacement Procedures
This chapter provides subassembly/module-level removal and replacement pr ocedures for the
Compaq Professional Workstation AP500.
After completing all necessary removal and replacement procedures, run the Compaq Setup and
Diagnostics program to veri fy that all components are oper ating properly.
Serial Number
Provide the computer serial number to Compaq whe never you request information or order spare
parts. The serial number is located on the top right side of the workstation 1 and also on the rear
of the chassis 2.
For asset control, the seria l number is also embedded in the EP RO M on the system board. If the
system board is replaced with a spare part from Compaq, an invalid serial number condition will
be reported during POST. T o c l ear the condition, use Compaq Softpa q SP8410. It is located at:
http://www.compaq.com/support/files/workstations/us/software/674.html.
3-1
NOTE: If a system board from another workstation is installed, POST recognizes the serial
number as a val id number.
1
2
Figure 3-1. Identifying serial number locations
Compaq Professional Workstation AP500 Maintenance and Service Guide
3-2 Removal and Replacement Procedures
Service Preparations
CAUTION: The power supply in the Compaq Professional Workstation AP500 has
an auxiliary power section. This section is always active as long as the unit is
plugged into a live AC outlet. Be sure to turn off the switch and unplug the power
cord before performing any service work.
CAUTION: Electrostatic discharge can damage electronic components. Be sure
you are properly grounded before beginning any install ation procedure. See
“Electrostatic Discharge Information” in Chapter 2 for more information.
Before beginning any of the removal and replacement procedures, complete the following steps:
1. Turn off the workstation.
2. Disconnect the power cord from the grounded AC outlet and then from the workstation.
3. Turn off all peripheral devices and disconnect cables f rom the rear of the wor ksta tion.
4. Remove the cable lock in order to access internal components. See the following section
for instructions on how to remove the cable lock.
Cable Lock
The workstation comes standard w ith a cable lock provision for attaching a pa dlock and/or cable
lock. If installed, the locks must be removed before accessing internal components.
To remove the lock:
1. Unlock and remove the cable lock and/or the padlock 1.
2. Remove the security bracket (plate) seated over the cable lock bracket 2.
3. Unfasten the retaining screw to release the cable lock bracket 3.
3-3
1
3
2
Figure 3-2. Removing the padlock
NOTE: In some of the removal procedures in this chapter, you will be asked to remove the
workstation feet and lay the workstation on its side when servicing some of the internal
components.
NOTE: For more information on preparing the workstation for service, see Chapter 2.
Compaq Professional Workstation AP500 Maintenance and Service Guide
3-4 Removal and Replacement Procedures
Workstation Feet
NOTE: Not all procedures in this chapter require the removal of the workstation feet. Be sure to
thoroughly read each removal and replacement procedure before attempting to access the
workstation’s internal components.
To remove the workstation fe et:
1. Perform the service preparations shown on page 3-2, then lay the workstation on its side.
2. Remove the screws that secure the feet.
3. Remove the feet.
Figure 3-3. Removing the workstation feet
4. To replace the feet, reverse the above procedure.
IMPORTANT: Compaq recommends that you perform certain removal and replacement
procedures with the workstation laying on its side. Re fer to each procedure for instructions.
Side Access Panel
To remove the side access panel:
1. Perform the service preparations shown on page 3-2.
2. Loosen the four rear panel thumbscrews, then slide the side access off.
3-5
CAUTION: Do not operate the workstation with the side access panel removed.
The panel is an integral part of the cooling system; removing it while the system is
operating may adversely affect data integrity.
Figure 3-4. Loosening the thumbscrews and removing the side access panel
WARNING: To reduce the risk of personal injury from hot surfaces, allow the
internal system components to cool before touching.
IMPORTANT: When replacing the side access panel, be sure to tighten all four
thumbscrews.
NOTE: The hood label attached to the inside of the side access panel provides system
configurations and the installation of additional components.
To replace the side access panel:
1. Be sure all grounding clips and EMI gaskets (shielding strips) are in place.
2. Slide the side access panel in at an angle on one side, drop it into place, then slide it into
the unit completely.
3. Tighten the rear panel thumbscrews.
Compaq Professional Workstation AP500 Maintenance and Service Guide
3-6 Removal and Replacement Procedures
Front Bezel
To remove the front bezel:
1. Perform the service preparations shown on page 3-2.
2. Remove the side access panel.
3. Push the front bezel release latches 1 and remove the bezel 2.
COMPACT
1
2
Figure 3-5. Removing the front bezel
To replace the front bezel:
1. Line up the hinges and release latches with the appropriate slots on the f ront of the
chassis.
2. Press the bezel in to secure the release latches.
Blank Drive Bezel
To remove a blank drive bezel:
1. Perform the service preparations shown on page 3-2.
2. Remove the following components:
❏ Side access panel
❏ Front bezel
3. Remove the screws that secure the blank drive bezel to the front bezel.
3-7
Figure 3-6. Removing a blank drive bezel
To replace a blank drive bezel, reverse the above procedure.
Compaq Professional Workstation AP500 Maintenance and Service Guide
3-8 Removal and Replacement Procedures
EMI/Cooling Shield
An EMI/cooling shield cover s bays 5 and 6 to provide proper cooling and EMI protection.
To remove an EMI/cooling shield:
1. Perform the service preparations shown on page 3-2.
2. Remove the following components:
❏ Side access panel
❏ Front bezel
3. Remove the two screws that connect the EMI/cooling shield to the drive cage.
4. Remove the EMI/cooling shield from the drive slot.
COMPACT
Figure 3-7. Removing the EMI/cooling shield
To replace the EMI/cooling shield, reverse the above procedure.
IMPORTANT: You must replace the shield after a hard drive is installed in the bay.
Speaker
3-9
To remove the speaker:
1. Perform the service preparations shown on page 3-2.
2. Remove the side access panel.
3. Unplug the speaker connector from the system board 1, and remove the cable from the
clip.
4. Remove the four T-15 screws securing the front of the speaker to the chassis 2.
5. Remove the speaker fr om the workstation by sliding it back, then lifting it up and out of
the chassis 3.
1
2
1
Figure 3-8. Removing the speaker
To replace the speaker, reverse the above procedure.
3
Compaq Professional Workstation AP500 Maintenance and Service Guide
3-10 Removal and Replacement Procedures
I/O Bracket Assembly
The I/O bracket assembly (expansion board assembly) contains a backplane board (also ca lled a
riser card), card guide, and any expansion boa rds. To remove the I/ O bracket assembly:
1. Perform the service preparations shown on page 3-2, then lay the workstation on its side.
2. Remove the following components:
❏ Workstation feet
❏ Side access panel
CAUTION: The power supply in the Compaq Professional Workstation AP500
contains an auxiliary power section. Be sure the power switch is off and the unit is
unplugged before rem oving the I/O bracket assembly in the next step.
3. Grasp the I/O bracket assembly and pull it out of the chassis.
Figure 3-9. Removing the I/O bracket assembly
IMPORTANT: After reconnecting the power cord to the grounded AC outlet and to the
workstation, DO NOT turn the power button on if the Power LED is a steady amber color. A
steady amber color indicates that the I/O bracket assembly is not seated properly.
Disconnect the power cord and reseat the I/O bracket assembly.
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