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Compaq Armada M300
Series of Personal Computers
Maintenance and Service Guide
DOCUMENTATION SURVEY
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Armada M300 Series of Personal Computers
Notice
2000 Compaq Computer Corporation.
COMPAQ, the Compaq logo, and ARMADA Registered in U. S. Patent and Trademark Office
Microsoft, Windows, Windows NT, are registered trademarks of Microsoft Corporation in the United States
and/or other countries. Intel and Pentium are registered trademarks of Intel Corporation in the United States
and other countries.
All other product names mentioned herein may be trademarks or registered trademarks of their respective
companies.

Compaq shall not be liable for technical or editorial errors or omissions contained
herein. The information in this document is subject to change without notice and is
provided "as is" without warranty of any kind. The entire risk arising out of the
use of this information remains with the recipient. In no event shall Compaq be
liable for any direct, consequential, incidental, special, punitive, or other damages
whatsoever (including without limitation, damages for loss of business profits,
business interruption, or loss of business information), even if Compaq has been
advised of the possibility of such damages. The limited warranties for Compaq
products are exclusively set forth in the documentation accompanying such
products. Nothing herein should be construed as constituting a further or
additional warranty.

MAINTENANCE AND SERVICE GUIDE
Compaq Armada M300 Series of Personal Computers
Second Edition February 2000
First Edition July 1999
Published in the U.S.A., U.K., Singapore, and Taiwan.
Documentation Part Number 113732-002
Spare Part Number 158339-001
C ONTENTS
preface
USING THIS GUIDE ...........................................................................................................................................VII

chapter 1
PRODUCT DESCRIPTION
1.1 Computer Features and Models......................................................................................................1-1
Models ...........................................................................................................................................1-2
Features .........................................................................................................................................1-4
Intelligent Manageability ..............................................................................................................1-5
Accessing the Web Agent.............................................................................................................1-5
Asset Management ........................................................................................................................1-5
Fault Management.........................................................................................................................1-6
Fault Management Alerts..............................................................................................................1-6
Security Management ...................................................................................................................1-6
Configuration Management ..........................................................................................................1-7
Managing Power ...........................................................................................................................1-7
Accessing Power Management.....................................................................................................1-7
Power Management Levels...........................................................................................................1-7
1.2 Computer External Components ....................................................................................................1-8
1.3 Design Overview.........................................................................................................................1-15
System Board ..............................................................................................................................1-15

chapter 2
TROUBLESHOOTING
2.1 Preliminary Steps ............................................................................................................................2-2
2.2 Clearing Passwords.........................................................................................................................2-3
2.3 Power-On Self-Test (POST)...........................................................................................................2-3
2.4 POST Error Messages.....................................................................................................................2-4
2.5 Compaq Utilities .............................................................................................................................2-6
2.6 Troubleshooting Without Diagnostics ..........................................................................................2-12
Before Replacing Parts................................................................................................................2-12
Obtaining Update Information with Info messenger..................................................................2-12
Checklist for Solving Problems ..................................................................................................2-13

chapter 3
ILLUSTRATED PARTS CATALOG
3.1 Serial Number Location..................................................................................................................3-1
3.2 Computer Major System Components ...........................................................................................3-2
3.3 Miscellaneous Plastic Kit Components..........................................................................................3-4
3.4 Mass Storage Devices.....................................................................................................................3-5
3.5 Miscellaneous..................................................................................................................................3-6

ContentsArmada M300 Maintenance and Service Guide iii
chapter 4
REMOVAL AND REPLACEMENT PRELIMINARIES
4.1 Tools Required................................................................................................................................1-1
4.2 Service Considerations....................................................................................................................1-1
Plastic Parts ...................................................................................................................................4-1
Cables and Connectors..................................................................................................................4-2
4.3 Preventing Damage to Removable Drives .....................................................................................1-2
4.4 Preventing Electrostatic Damage....................................................................................................1-3
Packaging and Transporting Precautions......................................................................................4-3
Workstation Precautions ...............................................................................................................4-4
Grounding Equipmemt amd Methods ..........................................................................................4-5
Electrostatic Voltage Levels and Protective Matherials...............................................................4-6

chapter 5
REMOVAL AND REPLACEMENT PROCEDURES
5.1 Serial Number .................................................................................................................................5-1
5.2 Disassembly Reference Chart.........................................................................................................5-2
5.3 Disconnecting the Computer from the Mobile Expansion Unit ....................................................5-3
5.4 Disconnecting the Computer ..........................................................................................................5-4
5.5 Preparing the Computer for Disassembly ......................................................................................5-5
5.6 Battery Packs...................................................................................................................................5-6
Removing the Battery Pack...........................................................................................................5-6
Replacing the Battery Pack ...........................................................................................................5-7
5.7 Hard Drives .....................................................................................................................................5-8
Removing a Hard Drive ................................................................................................................5-8
Inserting a Hard Drive...................................................................................................................5-9
5.8 PC Cards ........................................................................................................................................5-10
Removing a PC Card...................................................................................................................5-11
Inserting a PC Card .....................................................................................................................5-12
5.9 Modem or Modem/NIC Card .......................................................................................................5-13
5.10 Real Time Clock (RTC) Battery.................................................................................................5-15
5.11 Keyboard .....................................................................................................................................5-16
5.12 Memory Expansion......................................................................................................................5-18
Removing the Memory Expansion Board ..................................................................................5-18
Installing the Memory Expansion Board....................................................................................5-19
5.13 Switch Cover...............................................................................................................................5-20
5.14 Display Assembly .......................................................................................................................5-22
5.15 Top Cover with TouchPad..........................................................................................................5-23
5.16 Voltage Converter Board............................................................................................................5-25
5.17 Modem Connector Board............................................................................................................5-26
5.18 PC Card Assembly......................................................................................................................5-28
5.19 System Board ..............................................................................................................................5-29

iv ContentsArmada M300 Maintenance and Service Guide
chapter 6
SPECIFICATIONS
6.1 Physical and Environmental ...........................................................................................................6-1
6.2 Display ............................................................................................................................................6-2
6.3 Hard Drive.......................................................................................................................................6-3
6.4 Diskette Drive .................................................................................................................................6-4
6.5 Li-Ion Battery Pack.........................................................................................................................6-4
6.6 CD-ROM Drive ..............................................................................................................................6-5
6.7 DVD-ROM Drive ...........................................................................................................................6-6
6.8 System Interrupts ............................................................................................................................6-7
6.9 System DMA...................................................................................................................................6-7
6.10 System I/O Addresses...................................................................................................................6-8
6.11 System Memory Map....................................................................................................................6-9

appendix A
CONNECTOR PIN ASSIGNMENTS ......................................................................................................................A-1

appendix B
POWER CORD SET REQUIREMENTS .................................................................................................................. B-1

INDEX ........................................................................................................................................................... I-1

ContentsArmada M300 Maintenance and Service Guide v
preface

U SING T HIS G UIDE
This Maintenance and Service Guide is a troubleshooting reference that can be used
when servicing the Compaq Armada M300 Series of Personal Computers.

Compaq Computer Corporation reserves the right to make changes to the Compaq
Armada M300 Series 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 in the
caution 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.

Technician Notes

WARNING: Only authorized technicians trained by Compaq should 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.
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.
CAUTION: To properly ventilate the system, you must provide at least 3 inches (7.62 cm)
of clearance on the left and right sides of the computer.

Preface vii
Serial Number
When requesting information or ordering spare parts, provide the computer serial
number. The serial number is on the bottom of the computer.

Locating Additional Information
In addition to this guide, the following documentation provides information for the
computer:
s Compaq Armada M300 Series of Personal Computers documentation set
s Microsoft Operating System Manual
s Compaq Service Training Guides
s Compaq Service Advisories and Bulletins
s Compaq QuickFind
s Compaq Service Quick Reference Guide
s Compaq Internet site at http://www.Compaq.com

Viii Preface
chapter
1
P RODUCT D ESCRIPTION

1.1 Computer Features and Models
The Compaq Armada M300 Series of Personal Computers is an ultralight 3.1 to
3.3 pound (1.4 to 1.5 kg) computer (depending on configuration). It allows users high
mobility, provides a full set of system ports, and when paired with the optional Mobile
Expansion Unit (MEU), transforms into a full-function portable with enterprise docking
capability.

Figure 1-1. Compaq Armada M300 Personal Computer

Product Description 1-1
Models
The Armada M300 models are shown in Table 1-1. The computer model designation is
composed of a group of characters that define each model's features.

Table 1-1
Models and Model Naming Convention
Compaq Armada M300 Series of Personal Computers
Key
A M 3 P3 500 T 1 X 12 0 M 128 58 N S F
1 2 3 4 5-6 7-9 10 11 12 13-14 15 16 17-19 20-21 22 23 24
Key Description Options
1 Brand designator A = Armada
2 Segment designator M = Mobility
3 Series 3 = 300
4 Blank
5-6 Processor type P3 = Intel Pentium III P2 = Intel Pentium II C = Intel Celeron
processor with 256 processor with 256 processor with 128
KB cache KB cache KB cache
7-9 Processor speed 500 = 500 MHz 450 = 450 MHz 333 = 333 MHz
10 Panel type T = TFT
11 Panel size 1 = 11.x"
12 Panel resolution X = XGA S = SVGA
13-14 Hard drive size (in 12 = 12.0 GB 6 = 6.4 GB 4 = 4.3 GB
GB, 1-2 digits)
15 Optical drive 0 = none
16 Integrated M = Mini PCI V.90 C = NIC/modem 0 = none
communication Modem combination
17-19 RAM (in MB, 64 = 64 MB
2-3 digits)
20-21 Operating system 95 = Windows 95 N4 = Windows NT 4.0
98 = Windows 98 N2 = Windows 2000
58 = Windows 95/98 dual install N4/N2 = Windows NT 4.0/2000
dual install
22 NAFTA N = NAFTA
23 Pointing device P = TouchPad
24 Security

1-2 Product Description
Table 1-2
Models and Model Naming Convention
Compaq Armada M700 Series of Personal Computers
1 2 3 4 5-6 7-9 10 11 12 13-14 15 16 17-19 20-21 22 23 24 SKU#
A M 3 P3 500 T 1 X 12 0 C 128 58 P 165288-XX2
A M 3 P3 500 T 1 X 12 0 C 128 N4/N2 P 165288-XX6
A M 3 P3 500 T 1 S 12 0 0 64 58 P 152547-XX2
A M 3 P3 500 T 1 S 12 0 0 64 N4/N2 P 152547-XX6
A M 3 P3 500 T 1 S 12 0 M 64 58 P 152548-XX2
A M 3 P3 500 T 1 S 12 0 M 64 N4/N2 P 152548-XX6
A M 3 P3 500 T 1 S 12 0 C 64 58 P 152549-XX2
A M 3 P3 500 T 1 S 12 0 C 64 N4/N2 P 152549-XX6
A M 3 C 450 T 1 S 6 0 0 64 58 P 152544-XX2
A M 3 C 450 T 1 S 6 0 0 64 N4/N2 P 152544-XX6
A M 3 C 450 T 1 S 6 0 M 64 58 P 152545-XX2
A M 3 C 450 T 1 S 6 0 M 64 N4/N2 P 152545-XX6
A M 3 C 450 T 1 S 6 0 C 64 58 P 152546-XX2
A M 3 C 450 T 1 S 6 0 C 64 N4/N2 P 152546-XX6
A M 3 P2 333 T 1 S 6 0 C 64 95 P 138594-XX2
A M 3 P2 333 T 1 S 6 0 C 64 98 P 138594-XX4
A M 3 P2 333 T 1 S 6 0 C 64 N4 P 138594-XX6
A M 3 C 333 T 1 S 4 0 C 64 95 P 138595-XX2
A M 3 C 333 T 1 S 4 0 C 64 98 P 138595-XX4
A M 3 C 333 T 1 S 4 0 C 64 N4 P 138595-XX6
A M 3 P2 333 T 1 S 6 0 O 64 95 P 107008-XX2
A M 3 P2 333 T 1 S 6 0 0 64 98 P 107031-XX4
A M 3 P2 333 T 1 S 6 0 0 64 N4 P 107051-XX6
A M 3 P2 333 T 1 S 6 0 M 64 95 P 107009-XX2
A M 3 P2 333 T 1 S 6 0 M 64 98 P 107032-XX4
A M 3 P2 333 T 1 S 6 0 M 64 N4 P 107052-XX6
A M 3 C 333 T 1 S 4 0 O 64 95 P 107061-XX2
A M 3 C 333 T 1 S 4 0 0 64 98 P 107062-XX4
A M 3 C 333 T 1 S 4 0 0 64 N4 P 107067-XX6
A M 3 C 333 T 1 S 4 0 M 64 95 P 124788-XX2
A M 3 C 333 T 1 S 4 0 M 64 98 P 124789-XX4
A M 3 C 333 T 1 S 4 0 M 64 N4 P 124790-XX6

Product Description 1-3
Features
The computer has the following features:
s Intel Pentium III 500-MHz, Intel Pentium II 333-MHz, or Celeron 450- or
333-MHz processor, with 256-KB integrated L2 cache (Pentium III or II) or
128-KB integrated L2 cache (Celeron), depending on computer model
s ATI RAGE LT Pro, 4-MB SGRAM (synchronous graphics)
s Standard 64-MB high-performance synchronous DRAM (SDRAM), expandable to
512 MB
s Dual preinstall of Microsoft Windows 95 and Windows 98 or Windows NT
Workstation 4.0 and Windows NT 2000 preinstalled*
s 11.3-inch XGA CTFT (1024