Compaq Prolinea Family Operating manual

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Notice
The information in this guide 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 guide contains information protected by copyright. No part of this
guide may be photocopied or reproduced in any form without prior written
consent from Compaq Computer Corporation.
Copyright 1995 Compaq Computer Corporation.
All rights reserved. Printed in the U.S.A.
Compaq, Deskpro, LTE, Contura
Registered U. S. Patent and Trademark Office.
ProLinea is a trademark of Compaq Computer Corporation.
Microsoft and MS-DOS are registered trademarks of Microsoft Corporation.
Windows is a trademark of Microsoft Corporation.
The software described in this guide is furnished under a license
agreement or nondisclosure agreement. The software may be used or copied
only in accordance with the terms of the agreement.
Product names mentioned herein may be trademarks and/or registered
trademarks of their respective companies.
MAINTENANCE AND SERVICE GUIDE
COMPAQ PROLINEA FAMILY OF PERSONAL COMPUTERS
DESKTOP 3 SLOT/3 BAY
DESKTOP 4 SLOT/4 BAY
First Edition (February 1995)
Spare Part Number 172638-001
Documentation Part Number 172834-001

Preface
This Maintenance and Service Guide is a troubleshooting guide that can be
used for reference when servicing the Desktop 3 slot/3 bay and Desktop 4
slot/4 bay models of the Compaq ProLinea Family of Personal Computers.
Additional information is available in the SERVICE QUICK REFERENCE GUIDE.
Compaq Computer Corporation reserves the right to make changes to the
Compaq ProLinea Family of Personal Computers without notice.
Symbols
The following words and symbols mark special messages throughout this
guide:
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> WARNING <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
Text set off in this manner indicates that failure to follow directions in
the warning could result in bodily harm or loss of life.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
Text set off in this manner indicates that failure to follow
directions could result in damage to equipment or loss of data.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
IMPORTANT: Text set off in this manner presents clarifying information or
specific instructions.
NOTE: Text set off in this manner presents commentary, sidelights, or
interesting points of information.
Technician Notes
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> WARNING <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
Only authorized technicians trained by Compaq should attempt to repair
this equipment. All troubleshooting and repair procedures are detailed to
allow only subassembly/module level repair. Because of the complexity of
the individual boards and subassemblies, no one should attempt to make
repairs at the component level or to make modifications to any printed
wiring board. Improper repairs can create a safety hazard. Any indication
of component replacement or printed wiring board modifications may void
any warranty or exchange allowances.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
To properly ventilate your system, you must provide at least 3 inches
(7.62 cm) of clearance on the front and back of the computer.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> WARNING <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
The computer is designed to be electrically grounded. To ensure proper
operation, plug the AC power cord into a properly grounded electrical
outlet only.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
System Serial Number
The system serial number is displayed in two locations on the Compaq
ProLinea Family of Personal Computers: on the right side of the computer
near the front, and below the top expansion slot on the rear of the
computer.
Locating Additional Information
The following documentation is available to support the Compaq ProLinea
Family of Personal Computers:
o ABOUT YOUR COMPUTER (online document)
o COMPAQ DICTIONARY (online document)
o COMPAQ QUICK SETUP GUIDE
o COMPAQ BEYOND SETUP GUIDE
o MICROSOFT WINDOWS & MS-DOS 6 USER'S GUIDE
o Technical Training Guides
o Compaq Service Advisories and Bulletins
o COMPAQ QUICKFIND
o TECHNICAL REFERENCE GUIDE
o COMPAQ SERVICE QUICK REFERENCE GUIDE

Chapter 1. Product Description
Chapter 1.1 Models and Features
The Compaq ProLinea Family of Personal Computers introduces a new
generation of desktop computers designed for the business environment. The
family includes Desktop 3 slot/3 bay (DT3) and Desktop 4 slot/4 bay (DT4)
models. This chapter describes the model offerings and features of the DT3
and DT4 computers.

Chapter 1.2 Models
The Compaq ProLinea Family of Personal Computers is available in the
desktop models described in the following sections.
Compaq ProLinea Personal Computer DT3 Models
The Compaq ProLinea Personal Computer is available in the DT3 models
described in Table 1-1. These desktop computers have two ISA expansion
slots, one shared PCI/ISA expansion slot, one Compaq option slot, and
three mass storage bays. All models include a 3.5-inch diskette drive.
Table 1-1. Compaq ProLinea Personal Computer DT3 Models *
===========================================================================
Hard
Model Processor Drive Memory Graphics Cache CD-ROM
===========================================================================
ProLinea 450 486DX2/50 None 8 MB PCI Local No
Bus
ProLinea 450 486DX2/50 270 MB 8 MB PCI Local No
Bus
ProLinea 450 486DX2/50 270 MB 4 MB PCI Local No
Bus

ProLinea 466 486DX2/66 None 8 MB PCI Local No
Bus
ProLinea 466 486DX2/66 270 MB 8 MB PCI Local No
Bus
ProLinea 466 486DX2/66 420 MB 8 MB PCI Local No
Bus
ProLinea 4100 486DX4/100 None 8 MB PCI Local 128 KB No
Bus
ProLinea 4100 486DX4/100 270 MB 8 MB PCI Local 128 KB No
Bus
ProLinea 4100 486DX4/100 420 MB 8 MB PCI Local 128 KB No
Bus
ProLinea 575 586/75 None 8 MB PCI Local 256 KB No
Bus
ProLinea 575 586/75 270 MB 8 MB PCI Local 256 KB No
Bus
ProLinea 575 586/75 420 MB 8 MB PCI Local 256 KB No
Bus
---------------------------------------------------------------------------
* Not all models are available in all geographic regions.
===========================================================================
Compaq ProLinea Personal Computer DT4
Models
The Compaq ProLinea Personal Computer is available in the DT4 models
described in Table 1-2. These desktop computers have two ISA expansion
slots, two shared PCI/ISA expansion slots, one Compaq option slot, and
four mass storage bays. All models include a 3.5-inch diskette drive.
Table 1-2. Compaq ProLinea Personal Computer DT4 Models *
===========================================================================
Hard
Model Processor Drive Memory Graphics Cache CD-ROM
===========================================================================
ProLinea 450 486DX2/50 None 8 MB PCI Local No
Bus
ProLinea 450 486DX2/50 270 MB 8 MB PCI Local No
Bus
ProLinea 466 486DX2/66 None 8 MB PCI Local No
Bus
ProLinea 466 486DX2/66 270 MB 8 MB PCI Local No
Bus
ProLinea 466 486DX2/66 420 MB 8 MB PCI Local No

Bus
ProLinea 466 486DX2/66 420 MB 8 MB PCI Local Yes
Bus
ProLinea 4100 486DX4/100 None 8 MB PCI Local 128 KB No
Bus
ProLinea 4100 486DX4/100 420 MB 8 MB PCI Local 128 KB No
Bus
ProLinea 4100 486DX4/100 420 MB 8 MB PCI Local 128 KB Yes
Bus
ProLinea 575 586/75 None 8 MB PCI Local 256 KB No
Bus
ProLinea 575 586/75 420 MB 8 MB PCI Local 256 KB No
Bus
ProLinea 575 586/75 420 MB 8 MB PCI Local 256 KB No
Bus
ProLinea 575 586/75 720 MB 16 MB QVision 256 KB No
2000+
ProLinea 575 586/75 720 MB 16 MB PCI Local 256 KB No
Bus
ProLinea 590 586/90 None 8 MB PCI Local 256 KB No
Bus
ProLinea 590 586/90 420 MB 8 MB PCI Local 256 KB No
Bus
ProLinea 590 586/90 420 MB 8 MB PCI Local 256 KB Yes
Bus
ProLinea 590 586/90 720 MB 16 MB QVision 256 KB No
2000+
ProLinea 590 586/90 720 MB 16 MB PCI Local 256 KB No
Bus
---------------------------------------------------------------------------
* Not all models are available in all geographic regions.
===========================================================================
Chapter 1.3 Standard Features
The Compaq ProLinea Desktop Personal Computers have the following standard
features:
o 486DX2/50, 486DX2/66, 486DX4/100, 586/75, and 586/90 processors
o 4 MB (SIMM), 8 MB (soldered down) or 16 MB (soldered down) memory,
depending on model (see Table 1-4 for memory upgrade schedule)

o 128 KB write back cache on 486DX4/100 models, 256 KB write back cache on
586/75 and 586/90 models
o 270, 420, or 720 MB IDE IntelliSafe hard drive (models available
without hard drive)
o Enhanced PCI local bus graphics:
- PCI Local Bus Integrated Graphics Controller on selected 486 and 586
models
- QVision 2000+ Graphics Controller on selected 586 models
o DT3 form factor includes: one PCI/ISA shared slot, two ISA slots, Compaq
option slot, one internal third-height drive bay, and two external
half-height drive bays
o DT4 form factor includes: two PCI/ISA shared slots, two ISA slots,
Compaq option slot, one internal third-height drive bay, one external
third-height drive bay, and two external half-height drive bays
o CD-ROM drive with Enhanced Business Audio on selected models
o PCI local bus IDE interface for hard drive and CD-ROM (up to 4 drives)
o Power conservation features
o Plug and play design
o One mouse port (PS/2 style Compaq mouse)
o Preloaded software
o Diagnostics/Setup software
o Security management
o Three-year limited warranty
Preloaded Software
The following software is preloaded on the Compaq ProLinea Desktop
Personal Computers:
o Microsoft Windows 3.1
o Diagnostics for Windows
o MS-DOS 6
o Windows Sound System 2.0 (CDS models only)
o ESS 688 Audio Drivers (CDS models only)
o Compaq Welcome Center, Compaq Control Center, and Compaq Learning Center
o Drivers for graphics and IDE CD-ROM
o Power Management

o Security Management (see Section 1.6)
o Online documentation
Security Management
The following security management features are designed into the Compaq
ProLinea Desktop Personal Computers. These features can help prevent
unauthorized access to critical data and theft of the computer.
o Cable lock provision allows the user to physically secure the computer
hardware to protect against theft.
o Diskette boot control prevents the computer from being booted from a
diskette.
o Diskette drive control allows disabling of the diskette drive.
o Diskette write control prevents unauthorized writing of data to a
diskette.
o Hard drive control allows disabling of the hard drive.
o Flash ROM lock prevents unauthorized changes to the flash ROM.
o Keyboard password allows the computer to boot up but prevents data input
until the password is entered.
o Parallel interface control prevents transfer of data through the
parallel interface connector.
o Power-on password prevents unauthorized persons from booting up the
computer.
o QuickLock/QuickBlank allows the user to lock the keyboard and/or blank
the screen.
o Serial interface control prevents transfer of data through the serial
interface connector.
o Setup password prevents unauthorized changes to the system configuration.
Chapter 1.4 Options
The options that are available from Compaq for the Compaq ProLinea Family
of Personal Computers are described in the following sections.
Processor Upgrade
The processors in Compaq ProLinea Family of Personal Computers can be
upgraded according to the schedule in Table 1-3. Upgrade kits are
available from Compaq.
Table 1-3. Processor Upgrades
===========================================================================