Second Edition (March 1999)
Part Number 352624-002
Compaq Computer Corporation
Notice
The information in this publication 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,
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"AS IS" AND COMPAQ COMPUTER CORPORATION DISCLAIMS ANY WARRANTIES,
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GOOD TITLE AND AGAINST INFRINGEMENT.
This publication contains information protected by copyright. No part 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 furnished 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, SmartStart, NetFlex, QuickFind,
PaqFax, registered United States Patent and Trademark Office.
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Computer Corporation.
Microsoft, MS-DOS, Windows, and Windows NT are registered trademarks of Microsoft
Corporation.
Pentium is a registered trademark and Xeon is a trademark of Intel Corporation.
Other product names mentioned herein may be trademarks and/or registered trademarks of their
respective companies.
Compaq Professional Workstation AP200 Maintenance and Service Guide
Second Edition March 1999
Part Number 352624-002
iii
Contents
About This Guide
Symbols in Text.........................................................................................................................vii
Compaq Technician Notes..................................................................................................vii
Where to Go for Additional Help ............................................................................................. viii
Other Information Sources ................................................................................................ viii
Integrated Management Display........................................................................................viii
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
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
Chapter 3
Removal and Replacement Procedures
Serial Number...........................................................................................................................3-1
Service Preparations ................................................................................................................. 3-2
Logo Plate.................................................................................................................................3-2
Cable Lock ............................................................................................................................... 3-3
Access Panel.............................................................................................................................3-4
Front Bezel ............................................................................................................................... 3-5
Subpanel and Bezel Blanks.......................................................................................................3-6
Mass Storage Devices...............................................................................................................3-8
Drive Positions .................................................................................................................. 3-8
3.5-Inch Hard Drive ........................................................................................................ 3-10
3.5-Inch Drive with 5.25-Inch Drive Adapter ................................................................. 3-12
5.25-Inch Drive ............................................................................................................... 3-15
Installing Optional SCSI Devices ........................................................................................... 3-17
Important Guidelines for Installing Optional SCSI Devices............................................3-17
Using the SCSI Cable......................................................................................................3-18
Drivelock ................................................................................................................................ 3-19
Expansion Boards ................................................................................................................... 3-21
Removing an Expansion Board ....................................................................................... 3-22
Card Guide ............................................................................................................................. 3-23
Memory Modules ................................................................................................................... 3-24
Important Guidelines for DIMM Installation .................................................................. 3-24
DIMM Installation...........................................................................................................3-25
Processor ................................................................................................................................ 3-27
Processor Guide Rails......................................................................................................3-28
Compaq Professional Workstation AP200 Maintenance and Service Guide
iv
Removal and Replacement Procedures continued
Speaker ................................................................................................................................... 3-29
Power Supply..........................................................................................................................3-29
Power Switch..........................................................................................................................3-31
System Board..........................................................................................................................3-32
I/O Panel.................................................................................................................................3-33
Lithium Battery ...................................................................................................................... 3-34
Converting a Minitower to a Desktop Configuration..............................................................3-36
Converting a Desktop to a Minitower Configuration..............................................................3-39
Chapter 4
Diagnostic Tools
Power-On Self-Test (POST).....................................................................................................4-2
POST Messages........................................................................................................................4-3
Troubleshooting Minor Problems ............................................................................................. 4-8
Power Problems.................................................................................................................4-9
Diskette Drive Problems..................................................................................................4-10
Display Problems ............................................................................................................ 4-11
Printer Problems .............................................................................................................. 4-12
Hard Drive Problems.......................................................................................................4-13
Hardware Installation Problems ...................................................................................... 4-14
DVD-ROM and CD-ROM Drive (IDE) Problems .......................................................... 4-15
Memory Problems ........................................................................................................... 4-16
SCSI Problems ................................................................................................................ 4-16
Network Problems...........................................................................................................4-17
Audio Hardware Conflicts...............................................................................................4-19
Computer Setup and Diagnostics Utilities .............................................................................. 4-19
Accessing the Computer Setup Menu..............................................................................4-20
Diagnostics Utilities ........................................................................................................ 4-20
SCSI Error Codes ................................................................................................................... 4-33
Upgrading the ROM ............................................................................................................... 4-37
Local ROM Flash ............................................................................................................ 4-37
Remote ROM Flash.........................................................................................................4-38
FailSafe Boot Block ROM .............................................................................................. 4-38
Compaq Insight Manager ....................................................................................................... 4-40
Compaq Workstation SSD for Windows NT..........................................................................4-41
Compaq Diagnostics for Windows NT ................................................................................... 4-42
Chapter 5
System Security
Security Features ...................................................................................................................... 5-1
Setup Password..................................................................................................................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 .................................................................... 5-8
Re-enabling a Serial Port or Parallel Port..........................................................................5-8
QuickLock ...................................................................................................................... ... 5-9
Cable Lock Provision ........................................................................................................ 5-9
v
Chapter 6
Jumper and Switch Information
Switch Settings ......................................................................................................................... 6-3
Hard Drives .............................................................................................................................. 6-4
4.3-GB Wide-Ultra SCSI Hard Drives .............................................................................. 6-4
9.1-GB Wide-Ultra SCSI Hard Drive................................................................................6-6
6.4-GB Ultra ATA Hard Drives ........................................................................................ 6-7
8.4-GB Ultra ATA Hard Drive..........................................................................................6-9
10-GB Ultra ATA Hard Drive.........................................................................................6-10
CD-ROM or DVD-ROM Drive.......................................................................................6-11
ZIP Drive.........................................................................................................................6-11
Chapter 7
Physical and Operating Specifications
System Unit .............................................................................................................................. 7-2
200W Power Supply ................................................................................................................. 7-8
Diskette Drive...........................................................................................................................7-9
Zip Drive ................................................................................................................................ 7-10
CD-ROM Drive ...................................................................................................................... 7-11
DVD-ROM Drive...................................................................................................................7-13
Hard Drives ............................................................................................................................ 7-16
Audio System ......................................................................................................................... 7-21
Keyboard ................................................................................................................................ 7-21
Mouse ..................................................................................................................................... 7-22
Graphics Controllers...............................................................................................................7-23
Network Controller.................................................................................................................7-24
RJ-45 Network Cable Specifications...............................................................................7-24
Chapter 8
External Connectors
Physical Location ..................................................................................................................... 8-1
Pin Assignments ....................................................................................................................... 8-3
Index
Compaq Professional Workstation AP200 Maintenance and Service Guide
vii
About This Guide
This Maintenance and Service Guide is a troubleshooting guide that can be used when servicing
a Compaq Professional Workstation AP200.
WARNING: To reduce the risk of personal injury from electrical shock and
hazardous energy levels, only authorized service technicians should attempt to
repair this equipment. Improper repairs could create conditions that are
hazardous.
IMPORTANT: The installation of options and servicing of this product shall be performed
by individuals that are knowledgeable of the procedures, precautions, and hazards
associated with equipment containing hazardous energy circuits.
Symbols in Text
These symbols may be found in the text of this guide. They have the following meanings.
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.
IMPORTANT: Presents clarifying information or specific instructions.
NOTE: Presents commentary, sidelights, or interesting points of information.
Compaq 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 (30.5 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.
Compaq Professional Workstation AP200 Maintenance and Service Guide
viii About This Guide
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 to make
modifications to any printed wiring board. Improper repairs could create conditions
that are hazardous.
WARNING: To reduce the risk of electric shock or damage to the equipment:
s If the system has multiple power supplies, disconnect power from the system
by unplugging all power cords from the power supplies.
s Do not disable the power cord grounding plug. The grounding plug is an
important safety feature.
s Plug the power cord into a grounded (earthed) electrical outlet that is easily
accessible at all times.
CAUTION: To properly ventilate your system, you must provide at least 12
inches (30.5 cm) of clearance at the front and back of the computer.
IMPORTANT: Any indication of repair at the component level or modification of a printed
wiring board may void any warranty.
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
s
Compaq Service Quick Reference Guide
s
Service Training Guides
s
Compaq Service Advisories and Bulletins
s
Compaq QuickFind
s
Compaq Insight Manager
s
Compaq Download Facility: Call 1-281-518-1418
s
Integrated Management Display
Some Compaq server models include a Compaq Integrated Management Display (IMD). This
display is an integrated, 16x4 character display mounted on the front of the server. This display
provides easy-to-use menu-driven access to server information, including model number, LCD
firmware revision, and POST operations.
ix
Telephone Numbers
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 1-800-386-2172.
For Compaq technical support phone numbers outside the United States and Canada, visit the
Compaq website at:
http://www.compaq.com
Compaq Professional Workstation AP200 Maintenance and Service Guide
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