Professional Workstation AP550
Maintenance & Service Guide
Compaq Professional Workstation AP550
Part number 135618-003
Spare part number 158279-001
The complete MSG follows these addenda.
These addenda contain changes to the original document.
135618-001 1
2000 Compaq Computer Corporation. All rights reserved. Compaq is
registered in the U. S. Patent and Trademark Office. Product names
mentioned herein may be trademarks and/or registered trademarks of their
respective companies. First Edition (July 2000).
Spare Part Numbers
Spare Part Warranty
Description Number Tier
Intel Pentium III processor with heatsink (154293-001) and
clip (120891-001)
600 MHz/133-MHz 162996-001 A
800 MHz/133-MHz 174768-001 A
867 MHz/133-MHz 180221-001 A
Intel Pentium III processor with heatsink (210720-001), air
bafle (167373-001) and clip (120891-001)
1 GHz/133 MHz 210403-001 A
Memory Modules
64-MB ECC Direct Rambus Inline Memory Module 157108-001 A
(RIMM) 800-MHz
512-MB ECC (100-MHz SDRAM) 317748-001 A
Graphics Controllers
Matrox MGA-G400A, AGP 2x/4x 163361-001 A
Intense3D Wildcat 4110, AGP 2X, 166013-001 A
Intense3D Wildcat 4210, AGP Pro 202996-001 A
Nvidia TNT2 PRO, 16-MB SGRAM 179997-001 A
ELSA Gloria II AGP, 64 MB 174641-001 A
Matrox G200 MMS 171975-001 A
Graphics adapter, DVI-i to VGA 202997-001 A
Hard Drives
10-GB Ultra ATA Hard Drive, 7200 RPM 330520-001 A
20-GB Ultra ATA Hard Drive, 7200 RPM 157403-001 A
20-GB Ultra ATA Hard Drive, 7200 RPM 180475-001 A
30-GB Ultra ATA Hard Drive, 7200 RPM, Quiet Drive 180477-001 A
36.2-GB Wide-Ultra 160 SCSI Hard Drive 192197-001 A
Other Drives
48X Max CD-ROM Drive 187263-001 A
32X Max R-W CD-ROM Drive 173747-001 A
DVD-ROM Drive, 6x/32x, Opal 120417-001 B
DVD-ROM Drive, 10x/40x, Opal 161430-001 B
LS-120 SuperDisk 209938-001 A
Continued
2 Addenda to MSG 135618-001
Spare Part Numbers (continued)
Spare Part Warranty
Description Number Tier
Fast Ethernet NIC PCI, 10/100, Wake-On-LAN 116188-001 A
NIC 10/100 PCI card with Wake-On/Alert-On LAN 118042-001 A
179182-001 D
Miscellaneous Cable Kit
CD-ROM data, 12.5" (179048-001)
CD-ROM data, 12.5" (105876-001)
Diskette drive, 15.5" (179049-001)
CD-ROM audio, 12" (288489-001)
Thermal sensor (166785-001)
Hard drive/CD-ROM drive data, 14" (242947-001)
Hard drive data, 7" (247116-001)
Hard drive/CD-ROM drive data, 14.25" (242947-008)
Diskette drive data, 12" (247176-003)
Hard drive, CD-ROM drive data, 10" (247116-002)
Y-adapter, hard drive data (296563-001)
135618-001 3
Specifications Graphics Controllers
Matrox MGA-G400A Graphics Controller
Maximum display resolution
Double buffering
Double buffering
with 32-bit Z-
with 16-bit Z-
Graphics Double-buffering
buffering
buffering
memory Color palette* without Z-buffering
64 K colors (16-bit) 2048 x 1536 1800 x 1440 1600 x 1200
16 MB
16 M colors (32-bit) 1600 x 1200 1280 x 1024 1280 x 1024
64 K colors (16-bit) 2048 x 1536 2048 x 1536 2048 x 1536
32 MB
16 M colors (32-bit) 2048 x 1536 2048 x 1536 1800 x 1440
* 3D acceleration is only available with a 16- or 32-bit color palette.
Intense3D Wildcat 4110 Graphics Controller
Supported Resolutions Without Multisampling
bits per pixel
Aspect Ratio 96 128 160 192
4x3 1824x1368 1600x1200 1824x1368 1600x1200
(65 Hz) (75 Hz) (65 Hz) (75 Hz)
1280x1024 1280x1024 1280x1024 1280x1024
5x4
(85 Hz) (85 Hz) (85 Hz) (85 Hz)
2048x1152 1920x1080 2048x1152 1920x1080
16 x 9
(70 Hz) (75 Hz) (70 Hz) (75 Hz)
1920x1200 1824x1128 1920x1200 1824x1128
16 x 10
(70 Hz) (75 Hz) (70 Hz) (75 Hz)
1280x1024 N/A 1280x1024 N/A
5 x 4 Frame Sequential Stereo
(52 Hz) (52 Hz)
1280x960 1152x864 1280x960 1152x864
4 x 3 Frame Sequential Stereo
(60 Hz) (60 Hz) (60 Hz) (60 Hz)
Supported Resolutions with Multisampling
Aspect Ratio 128 bits per pixel 192 bits per pixel
4x3 1152x864 (85 Hz) 1024x768 (85 Hz)
N/A N/A
5x4
1360x766 (85 Hz) 1280x720 (85 Hz)
16 x 9
1280x800 N/A
16 x 10
800x600 (60 Hz) 800x600 (60 Hz)
4 x 3 Frame Sequential Stereo
4 Addenda to MSG 135618-001
Specifications Graphics Controllers (continued)
Intense3D Wildcat 4210 Graphics Controller
Supported Resolutions Without Multisampling
bits per pixel
Aspect Ratio 96 128 160 192
4x3 1920 x 1440 1920 x 1440 1920 x 1440 1920 x 1440
(60 Hz) (60 Hz) (60 Hz) (60 Hz)
1600 x 1280 1600 x 1280 1600 x 1280 1600 x 1280
5x4
(76 Hz) (76 Hz) (76 Hz) (76 Hz)
2048 x 1152 2048 x 1152 2048 x 1152 2048 x 1152
16 x 9
(75 Hz) (75 Hz) (75 Hz) (75 Hz)
1920 x 1200 1920 x 1200 1920 x 1200 1920 x 1200
16 x 10
(75 Hz) (75 Hz) (75 Hz) (75 Hz)
1280 x 1024 1280 x 1024 1280 x 1024 1280 x 1024
5 x 4 Frame Sequential Stereo
(60 Hz) (60 Hz) (60 Hz) (60 Hz)
128 0x 960 1280 x 960 1280 x 960 1280 x 960
4 x 3 Frame Sequential Stereo
(60 Hz) (60 Hz) (60 Hz) (60 Hz)
Supported Resolutions with Multisampling
Aspect Ratio 128 bits per pixel 192 bits per pixel
4x3 1600 x 1200 (85 Hz) 1360 x 1024 (85 Hz)
1600 x 1280 (76 Hz) 1280 x 1024 (94 Hz)
5x4
1920 x 1080 (85 Hz) 1600 x 900 (85 Hz)
16 x 9
1824 x 1128 (75 Hz) 1600 x 1024 (76 Hz)
16 x 10
1280 x 960 (60 Hz) 1280 x 960 (60 Hz)
4 x 3 Frame Sequential Stereo
135618-001 5
Specifications Graphics Controllers (continued)
Matrox G200 Quad MMS Graphics Controller
Refresh Rate/Display
Graphics
Memory Aspect Ratio Resolution Vertical Horizontal
31 102 kHz
60 - 200 Hz
32 MB 4:3/5:4 640 x 480
38 114 Khz
60 - 200 Hz
800 x 600
48 - 113 kHz
30 - 140 Hz
1024 x 768
54 - 110 kHz
60 - 120 Hz
1152 x 864
64 - 107 kHz
60 - 100 Hz
1280 x 1024
75 - 13 kHz
60 - 90 Hz
1600 x 1200
89 - 1 04 kHz
60 - 70 Hz
1800 x 1440
30 108 kHz
60 200 Hz
32 MB 16:9/16:10 856 x 480
44 76 kHz
60 100 Hz
1280 x 720
64 108 kHz
60 - 100 Hz
1600 x 1024
70 94 kHz
60 - 80 Hz
1920 x 1080
75 95 kHz
60 - 76 Hz
1920 x 1200
ELSA Gloria II AGP Graphics Controller
Graphics Maximum Colors Maximum Refresh Memory Dedicated
Memory Supported Resolution Rate to Texture Support
60 MB
120 Hz
64 MB 16.7M 640 x 480
58 Mb
120 Hz
800 x 600
54 MB
120 Hz
1024 x 768
52 MB
100 Hz
1152 x 864
52 MB
100 Hz
1280 x 800
49 MB
100 Hz
1280 x 960
48 MB
100 Hz
1280 x 1024
45 MB
100 Hz*
1600 x 1000
45 MB
85 Hz
1600 x 1000
41 MB
85 Hz
1600 x 1200
40 MB
85 Hz
1600 x 1280
40 MB
75 Hz
1600 x 1280
39 MB
85 Hz
1900 x 1080
39 MB
75 Hz
1920 x 1080
37 MB
85 Hz*
1920 x 1200
37 MB
75 Hz
1900 x 1200
27 MB
75 Hz
2048 x 1536
* Refresh rate may function but may not be officially supported by Compaq.
6 Addenda to MSG 135618-001
Air Baffle Assembly
135618-001 7
Compaq Professional Workstation AP550
Maintenance and Service Guide
Professional Workstation AP550
Maintenance and Service Guide
First Edition (October 1999)
Part Number 135618-001
Spare Part Number 158279-001
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, 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 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, NetFlex, QuickFind, PaqFax, registered United
States Patent and Trademark Office.
Fastart, Netelligent and SoftPaq are trademarks and/or service marks of Compaq 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 AP550
Maintenance and Service Guide
First Edition (October 1999)
Part Number 135618-001
Spare Part Number 158279-001
Contents
About This Guide
Symbols in Text .........................................................................................................vii
Compaq Technician Notes ........................................................................................viii
Where to Go for Additional Help ............................................................................... ix
Telephone Numbers.............................................................................................ix
Chapter 1
Illustrated Parts Catalog
Overview .................................................................................................................. 1-2
Mechanical Parts............................................................................................... 1-2
System Components ......................................................................................... 1-3
Spare Parts List ........................................................................................................ 1-4
Mechanical Components................................................................................... 1-4
System Components ......................................................................................... 1-5
Memory ............................................................................................................. 1-6
Mass Storage Devices ....................................................................................... 1-7
Cable Kits ......................................................................................................... 1-8
Graphic Controllers........................................................................................... 1-9
Network Controllers ....................................................................................... 1-10
Input/Output Devices ...................................................................................... 1-11
Software and Miscellaneous ........................................................................... 1-12
Documents ...................................................................................................... 1-12
Chapter 2
Service Preliminaries
Overview .................................................................................................................. 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
iv Compaq Professional Workstation AP550 Maintenance and Service Guide
Chapter 3
Removal and Replacement Procedures
Introduction .............................................................................................................. 3-1
Serial Number .......................................................................................................... 3-2
Service Preparations................................................................................................. 3-3
Cable Lock ............................................................................................................... 3-3
Workstation Access Panel........................................................................................ 3-4
Front Bezel............................................................................................................... 3-6
Subpanel and Bezel Blanks...................................................................................... 3-7
Mass Storage Devices .............................................................................................. 3-9
Drive Positions.................................................................................................. 3-9
3.5-Inch Hard Drive ........................................................................................ 3-11
3.5-Inch Drive with 5.25-Inch Drive Adapter................................................. 3-13
5.25-Inch Drive............................................................................................... 3-16
Installing Optional SCSI Devices .......................................................................... 3-18
Important Guidelines for Installing Optional SCSI Devices .......................... 3-18
Using the Multi-Mode (SCSI) Cable .............................................................. 3-20
Drivelock ................................................................................................................ 3-21
Expansion Boards .................................................................................................. 3-23
Removing an Expansion Board ...................................................................... 3-24
Installing an Expansion Board ........................................................................ 3-25
Serial Port Cover Connector .................................................................................. 3-27
Card Guide ............................................................................................................. 3-28
Memory Modules................................................................................................... 3-29
Overview ......................................................................................................... 3-29
RIMM Slot Locations and Configurations ..................................................... 3-30
Removing and Installing RIMMs ................................................................... 3-31
DIMM Location and Configurations .............................................................. 3-34
Removing and Installing DIMMs ................................................................... 3-35
Processor ................................................................................................................ 3-40
Removing a Processor .................................................................................... 3-40
Installing an Additional Pentium III Processor............................................... 3-41
Removing the Heatsink from the 733-MHz Processor ................................... 3-43
Processor Guide Rails (URM) ........................................................................ 3-45
Speaker ................................................................................................................... 3-46
System Board Fan .................................................................................................. 3-47
Power Supply ......................................................................................................... 3-48
Power Switch ......................................................................................................... 3-50
System Board ......................................................................................................... 3-51
I/O Panel ................................................................................................................ 3-53
Lithium Battery ...................................................................................................... 3-54
Converting a Minitower to a Desktop Configuration ............................................ 3-56
Converting a Desktop to a Minitower Configuration ............................................ 3-59
Contents v
Chapter 4
Diagnostic Tools
Overview .................................................................................................................. 4-1
Power-On Self-Test (POST) .................................................................................... 4-2
POST Messages ....................................................................................................... 4-3
Troubleshooting Minor Problems ............................................................................ 4-9
Power Problems .............................................................................................. 4-10
Diskette Drive Problems ................................................................................. 4-11
Display Problems............................................................................................ 4-12
Printer Problems ............................................................................................. 4-13
Hard Drive Problems ...................................................................................... 4-14
Hardware Installation Problems...................................................................... 4-15
DVD-ROM and CD-ROM Drive (IDE) Problems ......................................... 4-16
Memory Problems........................................................................................... 4-17
SCSI Problems................................................................................................ 4-17
Network Problems .......................................................................................... 4-18
Audio Hardware Conflicts .............................................................................. 4-20
Computer Setup and Diagnostics Utilities ............................................................. 4-21
Accessing the Computer Setup Menu............................................................. 4-22
Clearing Configuration Memory..................................................................... 4-25
Diagnostics Utilities........................................................................................ 4-26
Error Codes ..................................................................................................... 4-31
SCSI Error Codes................................................................................................... 4-39
Upgrading the ROM............................................................................................... 4-42
Local ROM Flash............................................................................................ 4-42
Remote ROM Flash ........................................................................................ 4-43
FailSafe Boot Block ROM..................................................................................... 4-43
Fault Management.................................................................................................. 4-45
SMART III Hard Drive Fault Prediction ........................................................ 4-45
Ultra ATA Integrity Monitoring ..................................................................... 4-45
Compaq Insight Manager....................................................................................... 4-46
Compaq Management Agents for Workstations .................................................... 4-46
Compaq Restore CD .............................................................................................. 4-47
Compaq Diagnostics for Windows NT .................................................................. 4-48
Chapter 5
System Security
Security Features...................................................................................................... 5-1
Setup Password ................................................................................................. 5-2
Windows NT Workstation Password................................................................ 5-6
National Keyboard Delimiter Characters.......................................................... 5-7
Advanced Security Management ............................................................................. 5-8
Reenabling Diskette Boot or Diskette Write..................................................... 5-8
Reenabling a Serial Port or Parallel Port .......................................................... 5-9
Cable Lock Provision........................................................................................ 5-9
vi Compaq Professional Workstation AP550 Maintenance and Service Guide
Chapter 6
Jumper and Switch Information
Overview .................................................................................................................. 6-1
Mass Storage ............................................................................................................ 6-3
9.1-GB Ultra3 SCSI Hard Drive....................................................................... 6-3
18-GB Ultra3 SCSI Hard Drive........................................................................ 6-4
CD-ROM or DVD-ROM Drive ........................................................................ 6-5
Zip Drive........................................................................................................... 6-5
Chapter 7
Physical and Operating Specifications
Overview .................................................................................................................. 7-1
System Unit.............................................................................................................. 7-2
375-W Power Supply ............................................................................................... 7-8
Diskette Drive .......................................................................................................... 7-9
Zip Drive................................................................................................................ 7-10
CD-ROM Drive ..................................................................................................... 7-14
DVD-ROM Drive .................................................................................................. 7-16
Hard Drives ............................................................................................................ 7-18
Audio System......................................................................................................... 7-21
Keyboard ................................................................................................................ 7-21
Mouse ..................................................................................................................... 7-22
Graphics Controllers .............................................................................................. 7-23
Network Controller ................................................................................................ 7-25
RJ-45 Network Cable Specifications .............................................................. 7-25
Chapter 8
External Connectors
Overview .................................................................................................................. 8-1
Physical Location..................................................................................................... 8-1
Pin Assignments....................................................................................................... 8-3
Index
About This Guide
This maintenance and service guide is a troubleshooting guide that can be used for reference
when servicing Compaq Professional Workstation AP550.
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
who 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: 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 information.
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.
viii Compaq Professional Workstation AP550 Maintenance and Service Guide
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.
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.
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.
About This Guide ix
Where to Go for Additional Help
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
Workstation Reference Library CD
s
NOTE: The Workstation Reference Library CD contains detailed product information on the graphics
controller, certain options, and the safety and comfort guide. All documents are presented in PDF file
format with an easy-to-use graphical interface. When the CD is inserted into the CD-ROM, the CD
automatically detects the operating system language and loads the corresponding language files (if
available).
Compaq Download Facility: Call 1-281-518-1418
s
Telephone Numbers
For the name of your nearest Compaq authorized reseller:
In the United States, call 1-800-345-1518
s
In Canada, call 1-800-567-1616
s
For Compaq technical support:
In the United States and Canada, call 1-800-386-2172
s
For Compaq technical support phone numbers outside the United States and Canada, visit
s
the Compaq website:
http://www.compaq.com
1
Chapter
Illustrated Parts Catalog
This chapter provides an illustrated parts breakdown and a reference for spare parts for the
Compaq Professional Workstation AP550.
1-2 Compaq Professional Workstation AP550 Maintenance and Service Guide
Overview
Mechanical Parts
Figure 1-1. Exploded view for the Compaq Professional Workstation AP550 mechanical parts
Illustrated Parts Catalog 1-3
System Components
Figure 1-2. Exploded view for the Compaq Professional Workstation AP550 system components
1-4 Compaq Professional Workstation AP550 Maintenance and Service Guide
Spare Parts List
Mechanical Components
2
1 3
Figure 1-3. Mechanical components for the Compaq Professional Workstation AP550
Table 1-1
Mechanical Components Spare Parts List
Item Description Spare Part #
1 Workstation access panel 137384-001
2 Chassis 164540-001
3 Front bezel 158268-001
Note: Parts or components marked with an asterisk (*) are not illustrated.
Illustrated Parts Catalog 1-5
System Components
9
7
4
11
8
5
1
10
3
Figure 1-4. System components for the Compaq Professional Workstation AP550
Table 1-2
System Components Spare Parts List
Item Description Spare Part #
1 Intel Pentium III Processor, 600EB-MHz with a 133-MHz front-side bus 152818-001
2 Intel Pentium III Processor, 733-MHz with a 133-MHz front-side bus 163363-001*
3 Battery 153099-001
4 System board for the Compaq Professional Workstation AP550 158272-001
5 Terminator board for secondary processor slot 158271-001
6 Lock security bracket 199109-001*
7 Loud speaker 164416-001
8 Power switch and LEDs with cable 166925-001
9 375-W power supply with Power Factor Correction (PFC) 128399-001
10 Auxiliary fan (standard) on the Compaq Professional Workstation AP550 158275-001
11 Processor power module connector for optional processor 329267-001
Note: Parts or components marked with an asterisk (*) are not illustrated.
1-6 Compaq Professional Workstation AP550 Maintenance and Service Guide
Memory
10 9
8
1
11
Figure 1-5. Memory for the Compaq Professional Workstation AP550
Table 1-3
Memory Spare Parts List
Item Description Spare Part #
1 64-MB ECC Direct Rambus Inline Memory Modules (RIMM) 600-MHz 157107-001
2 64-MB ECC Direct Rambus Inline Memory Modules (RIMM) 800-MHz 162995-001*
3 128-MB ECC Direct Rambus Inline Memory Modules (RIMM) 600-MHz 158264-001*
4 128-MB ECC Direct Rambus Inline Memory Modules (RIMM) 600-MHz 164539-001*
5 128-MB ECC Direct Rambus Inline Memory Modules (RIMM) 800-MHz 157112-001*
6 256-MB ECC Direct Rambus Inline Memory Modules (RIMM) 600-MHz 161453-001*
7 256-MB ECC Direct Rambus Inline Memory Modules (RIMM) 800-MHz 161454-001*
8 Continuity RIMMs (CRIMMs) 158265-001
9 SDRAM expansion board 158273-001
10 SDRAM expansion board stabilizer card 158276-001
11 64-MB ECC memory modules (Registered 100-MHz SDRAM) 329340-001
12 128-MB ECC memory modules (Registered 100-MHz SDRAM) ) 329341-001*
13 256-MB ECC memory modules (Registered 100-MHz SDRAM) ) 329343-001*
14 512-MB ECC memory modules (Registered 100-MHz SDRAM) ) 329344-001*
Note: Parts or components marked with an asterisk (*) are not illustrated.
Illustrated Parts Catalog 1-7
Mass Storage Devices
8
2
3
7
Figure 1-6. Mass storage devices for the Compaq Professional Workstation AP550
Table 1-4
Mass Storage Device Spare Parts List
Item Description Spare Part #
1 DVD-ROM drive (6X is available on select models) 105771-001*
2 9-GB Ultra3 SCSI hard drive (10,000 rpm) 160062-001
3 18-GB Ultra3 SCSI hard drive (10,000 rpm) 160063-001
4 10-GB Ultra ATA/66 IDE hard drive (7,200 rpm) 135364-001*
5 18-GB Ultra3 SCSI hard drive (7,200 rpm) 153650-001*
6 72 TrueX CD-ROM drive (optional) 134195-001*
7 1.44-MB diskette drive 158266-001
8 40X CD-ROM drive 400807-001
9 250-MB Zip Drive (optional) 125776-001*
10 100-MB Zip Drive 401624-001*
Note: Parts or components marked with an asterisk (*) are not illustrated.
1-8 Compaq Professional Workstation AP550 Maintenance and Service Guide
Cable Kits
1
2
3
Figure 1-7. Cable kits for the Compaq Professional Workstation AP550
Table 1-5
Cable Kits Spare Parts List
Item Description Spare Part #
1 Miscellaneous Cable Kit (166838-001, 288489-002, 247116-001, 242947-001) 166879-001
2 SCSI LVD 3-device twisted pair cable 158277-001
3 Serial port cover connector 158274-001
4 NIC Wake-on-LAN cable 166974-001*
5 Power cord 121258-001*
6 Video cable, 60 POS 164415-001*
Note: Parts or components marked with an asterisk (*) are not illustrated.
Illustrated Parts Catalog 1-9
Graphic Controllers
3
1
2 6
4
Figure 1-8. Graphic controllers for the Compaq Professional Workstation AP550
Table 1-6
Graphics Controllers Spare Parts List
Item Description Spare Part #
1 Matrox Productiva G100 Multi-Monitor 101239-001
2 Matrox G400 16-MB 4X AGP (2D) 400437-001
3 ELSA Synergy II 32-MB 4X AGP (entry-3D) 146140-001
4 3Dlabs Oxygen GVX1 AGP (mid-3D) 146141-001
5 3Dlabs Oxygen GVX1 PCI (mid-3D) 159629-001*
6 PowerStorm 600 (enh-3D) 122926-001
Note: Parts or components marked with an asterisk (*) are not illustrated.
1-10 Compaq Professional Workstation AP550 Maintenance and Service Guide
Network Controllers
1
2
Figure 1-9. Network controllers for the Compaq Professional Workstation AP550
Table 1-7
Network Controllers Spare Parts List
Item Description Spare Part #
1 Compaq NC3121 Fast Ethernet NIC PCI, 10/100, Wake-on-LAN 323556-001
2 Netelligent 16/4 TR PCI UTP/STP Controller 268010-001
3 Compaq NC3120 Fast Ethernet NIC PCI, 10/100 317606-001*
4 Compaq NC3123 Fast Ethernet NIC PCI, 10/100, Wake-on-LAN 174831-001*
Note: Parts or components marked with an asterisk (*) are not illustrated.
Illustrated Parts Catalog 1-11
Input/Output Devices
Table 1-8
Input/Output Devices Spare Parts List
Item Description Spare Part #
Keyboard and Mouse
1 Keyboard, space saver 269513-001*
2 3-button mouse 327716-001*
3 Spaceball 4000 3D motion control input device (optional) 118029-001*
Monitors
4 P 75 307806-xxx*
5 P1610 color monitor (Beach) 305708-xxx*
6 P1610 color monitor (Opal) 325500-xxx*
7 P110 monitor 325600-xxx*
8 TFT5000 flat panel monitor TC099 opal, touch screen, NA 325700-xxx*
9 TFT8000 flat panel monitor Opal, without protective panel, TC095,WW 307906-001*
10 TFT8000 flat panel monitor Opal, with protective panel, TC095,WW 307931-xxx*
11 TFT8000 flat panel monitor Carbon, without protective panel, TC095,WW 307932-xxx*
12 TFT8000 flat panel monitor Carbon, with protective panel, TC095,WW 307935-xxx*
13 TFT5000S Flat Panel Color (EMEA) 104751-021*
14 TFT5000S Flat Panel Color (outside EMEA) 122729-xx1*
15 V1000 Color Monitor 351756-xxx*
16 V900 Color Monitor 303500-xxx*
17 V700 Color Monitor 325800-xxx*
18 S900 Color Monitor 360512-xxx*
19 S700 Color Monitor 360512-xxx*
TFT 500: Order TFT 500 spare part from the TFT 500 guide (PN 285012-001)
20 *
Note: Parts or components marked with an asterisk (*) are not illustrated.
1-12 Compaq Professional Workstation AP550 Maintenance and Service Guide
Software and Miscellaneous
Table 1-9
Software and Miscellaneous Spare Parts List
Item Description Spare Part #
Software
1 Microsoft Windows NT Workstation 4.0 CD 275573-xx1*
Miscellaneous
2 3.5- to 5.25-inch diskette drive mounting bracket with screws and brace for 166923-001*
use in bay 3 only
3 3.5- to 5.25-inch hard drive mounting bracket 243231-001*
4 3.5- to 5.25-inch height mounting bracket for use in bays 1 and 2 only 243230-002*
5 Shipping box with buns (US) 166990-001*
6 Shipping box with buns (INTL) 166990-002*
Note: Parts or components marked with an asterisk (*) are not illustrated.
Documents
Table 1-10
Document Spare Parts List
Item Description Spare Part #
1 Maintenance and Service Guide 158279-001*
2 Illustrated Parts Map 158280-001*
3 Service Quick Reference Guide (revision 040) 162212-001*
Note: Parts or components marked with an asterisk (*) are not illustrated.
2
Chapter
Service Preliminaries
Overview
This chapter identifies the following service considerations:
Preliminary warnings and cautions
s
Electrostatic discharge information
s
Equipment symbols
s
Tools and software requirements
s
Warranty information
s
IMPORTANT: Adherence to the procedures and precautions described in this chapter is essential for
proper service.
2-2 Compaq Professional Workstation AP550 Maintenance and Service Guide
Preliminary Warnings and Cautions
The following should be noted when operating or servicing the Compaq Professional
Workstation AP550:
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 ground plug is an important safety
feature.
s 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
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
CAUTION: The power supply in the Compaq Professional Workstation AP550 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.
CAUTION: The workstation is designed to be electrically grounded. To ensure proper operation,
plug the AC power cord into a properly grounded AC outlet only.
CAUTION: RIMMs can reach a temperature of 212 F (100 C) in a matter of minutes. Caution
should be excised whenever removing or replacing these components.
IMPORTANT: Any indications of component replacement or printed wiring board modifications may void
any warranty.
Service Preliminaries 2-3
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:
Transport products in static-safe containers such as conductive tubes, bags, or boxes.
s
Keep electrostatic-sensitive parts in their containers until they arrive at static-free stations.
s
Cover workstations with approved static-dissipating material. Provide a wrist strap
s
connected to the work surface and properly grounded tools and equipment.
Keep work area free of non-conductive materials such as ordinary plastic assembly aids
s
and foam packing.
Always be sure you are properly grounded when touching a static-sensitive component or
s
assembly.
Avoid touching pins, leads, or circuitry.
s
Always place drives PCB assemblyside down.
s
Use conductive field service tools.
s
Equipment Symbols
The following symbols are located on applicable components of the workstation 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. The enclosed area contains no
operator-serviceable parts. To reduce risk of personal injury from electrical shock
hazards, do not open this enclosure.
WARNING: Any RJ-45 receptacle marked with this symbol 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.
2-4 Compaq Professional Workstation AP550 Maintenance and Service Guide
Tools and Software Requirements
To service the workstation, you might need the following:
Torx T-10 screwdriver
s
Torx T-15 screwdriver
s
Flat-blade screwdriver
s
Diagnostics diskette
s
IMPORTANT: Before servicing the workstation, be sure that the drivers from the latest Compaq
workstation SSD for Windows NT are installed. See Chapter 4 for installation procedures.
Warranty Information
The workstation comes standard with the following warranties:
Standard WarrantyRefer to the warranty card included with the unit.
s
Pre-Failure WarrantyA special warranty that extends the Compaq three-year limited
s
warranty by applying it to critical system components before they fail. This warranty
ensures that when you receive notification of a prefailure 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 Warranty covers the following workstation components:
Y SCSI hard drives
Y Error Correcting Code (ECC) memory
Y Pentium III processor
In addition to the above warranties, an optional Extended Warranty is available through
CarePaq. A post warranty contract is also available on this product. If purchased, this warranty
extends the Standard Warranty's one-year coverage for labor and on-site service by two
additional years.
IMPORTANT: Observe all warnings and cautions provided herein. Failure to do so may void warranty for
damaged components.
3
Chapter
Removal and Replacement Procedures
Introduction
This chapter provides subassembly/module-level removal and replacement procedures for the
Compaq Professional Workstation AP550.
After completing all necessary removal and replacement procedures, run the Compaq Setup and
Diagnostics program to verify that all components are operating properly.
3-2 Compaq Professional Workstation AP550 Maintenance and Service Guide
Serial Number
Provide the computer serial number to Compaq whenever you request information or order
spare parts. The serial number is located on the top corner of the workstation 1 and on the rear
of the chassis 2.
For asset control, the serial number is embedded in the EPROM 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 Power-On Self-Test (POST). To clear the condition, reenter the original
serial number through Computer Setup.
NOTE: POST recognizes the serial number as a valid number if a system board from another workstation
is installed.
1
2
Figure 3-1. Identifying serial number locations
Removal and Replacement Procedures 3-3
Service Preparations
CAUTION: Electrostatic discharge can damage electronic components. Be sure you are
properly grounded before beginning any installation 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.
IMPORTANT: On a power-managed system, the power cord must be disconnected from the grounded
AC outlet.
3. Turn off all peripheral devices and disconnect cables from the rear of the workstation.
NOTE: See Chapter 2 for more information on preparing the workstation for service.
Cable Lock
The workstation comes standard with a cable lock provision for attaching a padlock and/or cable
lock. If installed, the locks must be removed before you can access internal components.
To remove the lock (199109-001):
1. Unlock and remove the cable lock and/or the padlock.
2. Remove the security bracket (plate) 1, which is seated over the cable lock bracket 2.
3. Unfasten the retaining screw 3 to free the cable lock bracket and to release the screw
security bracket 4.
2
4
3
1
Figure 3-2. Removing the cable lock
To replace the cable lock, reverse the above procedure.
3-4 Compaq Professional Workstation AP550 Maintenance and Service Guide
Workstation Access Panel
To remove the workstation access panel (137384-001):
1. Perform the steps in the "Service Preparations" section as previously shown.
CAUTION: Before removing the workstation access panel, ensure that the workstation is
turned off, all cables are disconnected from the back of the workstation, and the power cord is
disconnected from the grounded AC outlet
2. Loosen the two thumbscrews that secure the workstation access panel to the workstation
chassis.
Figure 3-3. Loosening the side workstation access panel thumbscrews
Removal and Replacement Procedures 3-5
3. Slide the workstation access panel back about 1 inch (2.5 cm), then lift it off the
workstation.
Figure 3-4. Removing the workstation access panel
To replace the workstation access panel, reverse the above procedure.
3-6 Compaq Professional Workstation AP550 Maintenance and Service Guide
Front Bezel
To remove the front bezel (158278-001):
1. Perform the steps in the "Service Preparations" section as previously shown.
CAUTION: Before removing the workstation access panel, ensure that the workstation is
turned off, all cables are disconnected from the back of the workstation, and the power cord is
disconnected from the grounded AC outlet.
2. Remove the workstation access panel.
3. Press in on the two release tabs 1, then rotate the front bezel away from the chassis to
remove it from the workstation 2.
2
1
2
Figure 3-5. Removing the front bezel
To replace the front bezel, reverse the above procedure.
NOTE: When replacing the front bezel, be sure the bottom hinge points are properly placed in the
chassis before rotating the front bezel back into its original position.
Removal and Replacement Procedures 3-7
Subpanel and Bezel Blanks
NOTE: The subpanel and bezel blanks must be removed from the front bezel if you are installing a
mass storage device for the first time, or if you are converting the unit from a minitower to a desktop
configuration or from a desktop to a minitower configuration.
To remove the bezel blank from the front bezel:
1. Perform the steps in the "Service Preparations" section as previously shown.
CAUTION: Before removing the workstation access panel, ensure that the workstation is
turned off, all cables are disconnected from the back of the workstation, and the power cord is
disconnected from the grounded AC outlet.
2. Remove the side workstation access panel.
3. Remove the front bezel.
4. Gently pull the subpanel, with the bezel blank secured in it, away from the front bezel, and
then remove the bezel blank.
CAUTION: Hold the subpanel straight when you pull it away from the front bezel. Pulling at an
angle could damage the pins that align the subpanel within the front bezel.
Figure 3-6. Removing the subpanel and bezel blanks
To replace the subpanel and bezel blanks, reverse the above procedure. Be sure the subpanel and
front bezel align properly with the alignment tabs. See Figure 3-7 for the subpanel
keyed-alignment positions.
NOTE: When switching from minitower to desktop orientation, the bezel blank should be switched out
with the replacement provided to ensure that the Compaq logo is properly oriented.
3-8 Compaq Professional Workstation AP550 Maintenance and Service Guide
CAUTION: When replacing the subpanel, be sure the aligning pins and any remaining bezel
blanks are in the proper orientation to prevent damage to the alignment pins.
DESKTOP
DES
KTO
P/TO
WER
KEY
TOW
ER
Figure 3-7. Identifying the subpanel keyed-alignment positions
Removal and Replacement Procedures 3-9
Mass Storage Devices
This section discusses removal and replacement procedures for the mass storage devices
supported on the Compaq Professional Workstation AP550.
Drive Positions
The Compaq Professional Workstation AP550 can house up to five mass storage devices. The
following illustration identifies the physical drive locations. See the table below for a list of
recommended drive configurations.
1
2
3
3
4
5 2
1
4
5
Figure 3-8. Identifying drive positions. The bay numbers are stamped on the chassis.
Table 3-1
Drive Positions
Bay Bay Width Bay Height Device Configurations
1 5.25-inch bay Half-height Optional drive*
2 5.25-inch bay Half-height CD-ROM/optional drive (1.6-inch)
3 3.5-inch bay Third-height Standard 1.44-MB diskette drive (1.0-inch)
4 3.5-inch bay Third-height Optional hard drive (1.0-inch)
5 3.5-inch bay Third-height Standard hard drive
* You may install either a third-height or half-height drive into a half-height bay.
Use a drive adapter to mount a high-density diskette drive into a 5.25-inch bay.
NOTE: Compaq does not support mixing Ultra ATA and SCSI hard drives in the same system. If you are
replacing a hard drive in bay 4 or 5, install the same type drive as you remove. If you are replacing the
Ultra ATA hard drive in bay 4 or 5 with a SCSI hard drive, you will need a SCSI device option kit and the
SCSI controller option kit. The controller option kit contains the SCSI controller and cable that supports
multiple SCSI devices. See "Installing Optional SCSI Devices" later in this chapter for more information.
3-10 Compaq Professional Workstation AP550 Maintenance and Service Guide
IMPORTANT: You must install guide screws to ensure that the drives line up correctly in the drive cage.
Compaq has provided extra guide screws, installed in the front of the workstation chassis behind the
front bezel. Some options use 5.25 M3 metric screws, and some use HD 6-32. The Compaq-supplied
metric screws are black.
NOTE: For optimal performance, connect hard drives to the primary controller. Connect expansion
devices, such as IDE CD-ROM, tape, and diskette drives, to the secondary controller.
M3
6-32
Figure 3-9. Identifying the metric (M3) screws
Removal and Replacement Procedures 3-11
3.5-Inch Hard Drive
To remove a 3.5-inch hard drive:
1. Perform the steps in the "Service Preparations" section as previously shown.
CAUTION: Before removing the workstation access panel, ensure that the workstation is
turned off, all cables are disconnected from the back of the workstation, and the power cord is
disconnected from the grounded AC outlet.
2. Remove the workstation access panel.
3. Remove the front bezel.
4. Disconnect the power 1 and data 2 cables from the back of the hard drive.
2
1
Figure 3-10. Disconnecting the hard drive cables
3-12 Compaq Professional Workstation AP550 Maintenance and Service Guide
5. Raise the drivelock to unlock the hard drive.
Figure 3-11. Releasing the hard drive by raising the drivelock
6. Hold the drivelock up while you push the drive from the rear and remove it from the front
of the drive bay 1.
2
1
2
Figure 3-12. Removing a 3.5-inch hard drive
7. Remove the two guide screws from each side of the drive 2.
Removal and Replacement Procedures 3-13
To replace the 3.5-inch hard drive:
1. Install two guide screws on each side of the replacement drive, making sure the guide
screws line up with the guide slots.
2. Slide the hard drive into the drive bay until it snaps into place.
IMPORTANT: When installing a second Ultra ATA hard drive on the primary controller, you must use an
80-conductor Ultra ATA cable for optimal performance. This cable is included in the hard drive option kit.
3.5-Inch Drive with 5.25-Inch Drive Adapter
To remove a 3.5-inch drive with a 5.25-inch drive adapter (166923-001):
1. Perform the steps in the "Service Preparations" section as previously shown.
CAUTION: Before removing the workstation access panel, ensure that the workstation is
turned off, all cables are disconnected from the back of the workstation, and the power cord is
disconnected from the grounded AC outlet.
2. Remove the workstation access panel.
3. Remove the front bezel.
4. Disconnect the cables from the back of the drive.
5. Raise the drivelock to unlock the drive.
Figure 3-13. Releasing the hard drive by raising the drivelock
3-14 Compaq Professional Workstation AP550 Maintenance and Service Guide
6. Hold the drivelock up while you push the drive from the rear and remove it from the front
of the drive bay.
Figure 3-14. Removing a 3.5-inch drive from a 5.25-inch drive bay
Removal and Replacement Procedures 3-15
7. To remove the bracket brace from the top of the drive adapter, squeeze in on both sides of
| 101239-001
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