Compaq armada m300 Service Manual

Compaq Armada M300 Series of Personal Computers

Maintenance and Service Guide

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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

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

USING THIS GUIDE

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:

■ Compaq Armada M300 Series of Personal Computers documentation set

■ Microsoft Operating System Manual

■ Compaq Service Training Guides

■ Compaq Service Advisories and Bulletins

■ Compaq QuickFind

■ Compaq Service Quick Reference Guide

■ Compaq Internet site at http://www.Compaq.com

Viii Preface

chapter

PRODUCT DESCRIPTION

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

1234 5-6 7-9 10111213-14 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

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

GB, 1-2 digits) 15 Optical drive 0 = none 16 Integrated

communication

17-19 RAM (in MB,

2-3 digits)

20-21 Operating system 95 = Windows 95

22 NAFTA N = NAFTA 23 Pointing device P = TouchPad 24 Security

processor with 256 KB cache

12 = 12.0 GB 6 = 6.4 GB 4 = 4.3 GB

M = Mini PCI V.90

Modem

64 = 64 MB

98 = Windows 98 58 = Windows 95/98 dual install

P2 = Intel Pentium II

processor with 256 KB cache

C = NIC/modem

combination

N4 = Windows NT 4.0 N2 = Windows 2000 N4/N2 = Windows NT 4.0/2000

C = Intel Celeron

processor with 128 KB cache

0 = none

dual install

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:

■ 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

■ ATI RAGE LT Pro, 4-MB SGRAM (synchronous graphics)

■ Standard 64-MB high-performance synchronous DRAM (SDRAM), expandable to

512 MB

■ Dual preinstall of Microsoft Windows 95 and Windows 98 or Windows NT

Workstation 4.0 and Windows NT 2000 preinstalled

11.3-inch XGA CTFT (1024 × 768) and 11.3-inch SVGA CTFT (800 × 600)

■

displays with 16 million colors, depending on computer model

■ Keyboard is 95 percent of full-size with TouchPad pointing device

■ Full set of ports on system (serial, parallel, USB, Infrared, VGA)

■ Mini PCI 56K V.90 modem, or optional Mini PCI V.90 plus 10/100 NIC combo

card

■ One Type II PC Card slot with support for both 32-bit CardBus

and 16-bit PC

Cards; zoomed video support

■ External AC adapter with power cord

■ Lithium ion (Li-ion) battery packs

■ Standard: 4 cell, 26 Watt hours (externally attaches to computer)

■ Optional: 6 cell, 40 Watt hours (externally attaches to computer)

■ Optional: MultiBay (for mobile expansion unit)

■ High-capacity SMART hard drives, 12.0-, 6.4-, and 4.3-GB, with DriveLock

security and Prefailure Warranty, depending on computer model

■ Ultraportable form factor, 0.89 inch (2.3 cm) thin with weight starting at

3.1 lb. (1.4 kg), depending on configuration

■ Standard external diskette drive (attaches to system through the parallel port or fits

into the mobile expansion unit diskette drive bay)

■ Optional Mobile Expansion Unit (MEU) conveniently adds:

■ Dedicated diskette drive bay

■ Flexible MultiBay that accommodates: 24X MAX CD-ROM drive or DVD-ROM drive,

SuperDisk LS-120 drive, weight saver, second Li-Ion battery or secondary 6.4-GB hard drive

■ Additional ports: parallel, serial, audio in/out, VGA, USB, PS/2 (2), AC power in, CPU

connector, docking connector

■ Stereo speakers providing Compaq PremierSound 16-bit stereo sound

■ Robust, common enterprise docking solution

End user must make a one-time selection between Windows 95 and Windows 98. If end user desires rejected product(s)

after selection is made, end user must acquire and pay for rejected product(s) separately.

1-4 Product Description

Intelligent Manageability

Intelligent Manageability consists of preinstalled software tools for the computer and Compaq servers that assist in tracking, troubleshooting, protecting, and maintaining the computer. It provides the following functions:

■ Asset Management: provides detailed configuration and diagnostic information.

■ Fault Management: prevents, predicts, and alerts of impending hardware

problems.

■ Security Management: protects unauthorized access to data and components.

■ Configuration Management: optimizes the computer by providing the latest

drivers, utilities, and software, which are available on CD-ROM and the Compaq Web site at www.compaq.com/support/portables.

NOTE: For further help with Intelligent Manageability, select Start Å Compaq Information Center Å Intelligent Manageability

Accessing the Web Agent

The computer may have a preinstalled Web Agent that allows computer configuration information to be viewed using Web technology. To access this feature, select Start Å Compaq Information Center Å Insight Web Management.

If the computer does not have a preinstalled Web Agent, it can be downloaded from the Compaq Web site at www.compaq.com.

Asset Management

Asset Management enables component information to be retrieved when on the road or connected to the network.

Asset Management also enables the network administrator to remotely retrieve information from any Compaq computer connected to the network. The information can be used to assist in tracking and maintaining the computer and its components. It provides the following information:

■ Inventory information—The network administrator can retrieve information about

the computer over the network by using Compaq Insight Manager or any PC management tool provided by Compaq Solution Partners. Asset control information retrieved from the computer includes:

■ Manufacturer, model, and serial number of Compaq computers, monitors, hard

drives, battery packs, memory boards, processor speeds, and operating systems

■ Asset tag

■ System board and ROM revision levels

■ BIOS settings

■ Diagnostic information—Diagnostics for Windows includes information on hard

drives, ports, video, sound, and other components. This application also allows the user to run multi-threaded tests on hardware components. If problems are found, recommendations are provided.

All of the above information can be viewed, printed, or saved.

Product Description 1-5

Fault Management

Fault Management features minimize downtime and data loss by monitoring system performance and generating the following alerts:

■ Hard drive alert—provides 72-hour advance warning of impending hard drive

problems and can automatically start optional backup software.

■ System temperature alert—reports overheating. As the system temperature rises,

this feature first adjusts fan speed and other cooling components, then displays an alert, then shuts down the system.

■ Battery pack alert—reports charging problems and battery pack failure.

■ Monitor alert—diagnoses and displays external monitor operational problems.

■ Memory alert—reports memory board configuration changes when a memory

board is removed, added, or reconfigured. It also provides the previous and current configurations for comparison.

The alerts work with or without network connection. If the computer is not connected to the network, the network administrator cannot receive alerts from the computer.

Fault Management Alerts

Alerts can be enabled, disabled, and tested, and software can be set to back up information whenever a hard drive alert occurs.

■ While the computer is connected to a network, alerts pop up on the computer

display and are simultaneously reported to the network console.

■ System temperature alert—reports overheating. As the system temperature rises,

this feature first adjusts fan speed and other cooling components, then displays an alert, then shuts down the system.

NOTE: A battery charging problem alert is reported only on the computer display.

■ When the computer is not connected to a network, the user will receive a local alert.

■ To set alerts, select the Intelligent Manageability icon in the system tray.

Security Management

Security Management features customize system security.

■ Power-On and Setup Passwords—prevent unauthorized access to information and

computer configuration.

■ DriveLock—prevents unauthorized access to hard drives.

■ Device disabling—prevents unauthorized data transfer through modems, serial

ports, parallel ports, and infrared ports on the computer and an optional docking station.

■ QuickLock/QuickBlank—locks the keyboard and clears the screen.

■ Ownership Tag—displays ownership information during system restart.

1-6 Product Description

Configuration Management

Configuration Management optimizes software upgrade and customer support procedures. Compaq provides support software to optimize the performance of the computer. This support software is accessible through a monthly CD-ROM subscription. Support software can also be downloaded from the Compaq Web site at www.compaq.com/support/ portables.

Managing Power

The computer comes with a collection of power management features that allow battery operating time to be extended and power to be conserved. Use power management to monitor most computer components such as the hard drive, processor, and display.

Accessing Power Management

■ In Windows 95, select Start Å Settings Å Control Panel Å Power to view or

adjust settings in Power Properties.

■ In Windows NT 4.0, select Compaq Power instead of Power

■ In Windows 98, select Power Management.

Power Management Levels

To extend the life of batteries, use the Battery Conservation tab in Power Properties.

■ If Windows 95 is running, select Start Å Settings Å Control Panel Å Power to

access Power Properties.

■ In Windows NT 4.0, select Compaq Power instead of Power.

■ In Windows 98, select Power Management.

The level of battery conservation or the selection of preset power management levels can be customized.

Product Description 1-7

1.2 Computer External Components

The external components on the top of the computer are shown in Figure 1-2 and described in Table 1-2.

Figure 1-2. Top Components

1-8 Product Description

Table 1-3

Top Components

Item Component Function

1 Display switch Turns off the computer display if the computer is closed while

on. 2 Scroll lock light On: Scroll lock is on. 3 Caps lock light On: Caps lock is on. 4 Num lock light On: Num lock is on and the embedded numeric keypad is

enabled. 5 Hard drive light On: The primary hard drive is being accessed. 6 Diskette drive light On: The external diskette drive is being accessed. 7 Internal microphone Supports audio input when the display is open or closed. 8 Suspend button Initiates and exits Suspend.* When pressed with the Fn key,

initiates Hibernation. 9 Windows application key Displays shortcut menu for item beneath mouse cursor. 10 Battery light

11 Power/suspend light

12 Right mouse button Functions like the right click button of an external mouse. 13 Left mouse button

14 TouchPad Moves the mouse cursor, selects, and activates. 15 Microsoft logo key Displays Windows Start menu.

On: The battery pack is charging.

Blinking: The battery pack, that is the only available power

source, has reached a low-battery condition.

On: Power is turned on. Off: Power is turned off.

Blinking: Computer is in Suspend.* NOTE: The power/suspend light also blinks if a battery pack that

is the only source of power available to the computer reaches a critical low-battery condition while Hibernation is disabled.

Functions like the left-click button of an external mouse.

Used with the TouchPad to drag and highlight.

*In Windows 98 the term Standby replaces the term Suspend.

In Windows 98 the term sleep button replaces the term suspend button.

Product Description 1-9

The external components on the left side of the computer are shown in Figure 1-3 and are described in Table 1-3.

Figure 1-3. Left Side Components

Table 1-4

Left Side Components

Item Component Function

1 RJ-45 jack*

2 Power connector Connects the AC power adapter. 3 Power button Turns the computer on or off or exits Suspend. 4 Vents Cools internal components. 5 Security cable slot Attaches an optional security cable to the computer. 6 Hard drive bay Holds primary hard drive.

WARNING: To reduce the risk of electric shock, fire, or damage to the equipment, do

not plug a telephone cable into the Ethernet RJ-45 jack.

Connects the network cable. NOTE: A network cable is included with network models.

Internal modem/NIC models only

1-10 Product Description

The external components on the right side of the computer are shown in Figure 1-4 and are described in Table 1-4.

Figure 1-4. Right Side Components

Table 1-5

Right Side Components

Item Component Function

1 PC Card slot Supports 32-bit (CardBus) and 16-bit PC Cards. 2 Air intake vents Cool internal components. 3 Air exhaust vents Cool internal components. 4 RJ-11 jack (internal modem

models only)

Connects the modem cable to an internal modem.

NOTE: A modem cable is included with internal modem models.

Product Description 1-11

The external components of the front of the computer are shown in Figure 1-5 and described in Table 1-5.

Figure 1-5. Front Components

Table 1-6

Front Components

Component Function

1 Display release latch Opens the computer. 2 Stereo speaker/headphone jack Connects stereo speakers, headphones, or headset audio. 3 Microphone jack Connects a single sound channel microphone. 4 Power/suspend light

5 Battery light

On: Power is turned on. Off: Power is turned off. Blinking: Computer is in Suspend. NOTE: The power/suspend light also blinks if a battery pack that is the only source of power available to the computer reaches a critical low-battery condition while Hibernation is disabled. On: A battery pack is charging. Blinking: A battery pack that is the only available power source has reached a low-battery condition.

1-12 Product Description

The external components on the rear of the computer are shown in Figure 1-6 and described in Table 1-6.

Figure 1-6. Rear Components

Table 1-7

Rear Components

Item Component Function

1 USB connector Connects USB devices 2 Serial connector Connects a serial device 3 Parallel connector Connects a parallel device 4 External monitor connector Connects an external monitor, overhead projector, or TV

adapter. 5 Infrared port Links to another IrDA-compliant device for wireless

communication. 6 Battery pack Provides power to the computer.

Product Description 1-13

The external components on the bottom of the computer are shown in Figure 1-7 and are described in Table 1-7

Figure 1-7. Bottom Components

Table 1-8

Bottom Components

Item Component Function

1 Battery latches Release the primary battery pack. 2 Real-time clock battery Provides battery power to automatically display the date and

time. 3 Serial number Numerical identification for the computer. 4 Fan Cools the computer. 5 Speaker Produces sound. 6 Modem compartment Provides access to the internal modem (modem models only). 7 docking connector Connects the computer to a docking base. 8 Hard drive security screw Secures hard drive in computer hard drive bay. 9 Hard drive bezel Releases a hard drive from the hard drive bay.

1-14 Product Description

1.3 Design Overview

This section presents a design overview of key parts and features of the computer. Refer to Chapter 3 for the illustrated parts catalog and Chapter 5 for removal and replacement procedures.

System Board

The system board provides the following device connections:

■ Memory expansion board

■ Hard drive

■ Display

■ Keyboard/Touchpad pointing device

■ Audio

■ Pentium II/Celeron processor

■ Fan

■ PC Cards

■ Modem

The computer is equipped with an Intel Pentium III 500-MHz, Intel Pentium II 333-MHz, or Celeron 450- or 333-MHz processor. For ventilation, an electrical fan is installed. The fan is controlled by a temperature sensor. The fan is designed to turn on automatically when high temperature conditions exist. These conditions are affected by high external temperatures, system power consumption, power management/battery conservation configurations, battery fast charging, and software applications. Exhaust air is displaced through the ventilation grill located on the right side of the computer.

CAUTION: To properly ventilate the computer, allow at least a 3-inch (7.6 cm) clearance on the left and right sides of the computer.

Product Description 1-15

chapter

ROUBLESHOOTING

Follow these basic steps when beginning the troubleshooting process:

1. Complete the preliminary steps listed in Section 2.1.

2. Run the Power-On Self-Test (POST) as described in Section 2.3.

3. Run Computer Setup as described in Section 2.5.

4. If you are unable to run POST or if the problem persists after running POST, perform the recommended actions described in the diagnostic tables in Section 2.5.

Follow these guidelines when troubleshooting:

Complete the recommended actions in the order in which they are given.

■

Repeat POST after each recommended action until the problem is resolved and the

■

error message does not return.

When the problem is resolved, stop performing the troubleshooting steps and do not

■

complete the remaining recommended actions.

Refer to Chapter 5 for recommended removal and replacement procedures.

■

If the problem is intermittent, check the computer several times to verify that the

■

problem is solved.

The following table describes the troubleshooting actions:

If You Want To: Then Run:

Check for POST error messages POST

Perform any of the following:

Check the system configuration

■

Set the system power management parameters

■

Return the system to its original configuration

■

Check system configuration of installed devices

■

Computer Setup

Troubleshooting

2-1

2.1 Preliminary Steps

IMPORTANT:

condition could initiate Hibernation and interrupt the test.

Before running POST, complete the following steps:

1. Obtain established passwords. If you must clear the passwords, go to Section 2.2.

2. Ensure that the battery pack is installed and the power cord is connected to the

computer and plugged into an AC power source.

3. Turn on the computer.

4. If a power-on password has been established, type the password and press

5. Run Computer Setup (Section 2.5). If a Setup password has been established, type

the password and press

6. Turn off the computer and all external devices.

7. Disconnect external devices that you do not want to test. If you want to use the

printer to log error messages, leave it connected to the computer.

NOTE:

the problem could be with the external device or its cable. Isolate the problem by running POST with and without the external device connected.

Use AC power when running POST or Computer Setup. A low battery

Enter.

If a problem only occurs when an external device is connected to the computer,

8. Use Compaq Utilities and loopback plugs in the serial and parallel connectors if you

plan to test these ports.

Follow these steps to run Compaq Utilities:

a. If you are running Compaq Utilities from the hard drive, turn on or restart the

computer. Press screen. If you do not press

If you are running Compaq Utilities from diskette, insert the Compaq Utilities

diskette in drive A. Turn on or restart the computer.

b. Press

c. Select Prompted Diagnostics.

d. After “Identifying System Hardware” completes, select Interactive Testing and

follow the instructions on the screen.

Enter

to accept

when the cursor appears in the upper-right corner of the

F10

in time, restart the computer and try again.

F10

2-2

Troubleshooting

2.2 Clearing Passwords

1. Turn off the computer.

2. Disconnect the computer (Section 5.4).

3. Remove the battery pack (Section 5.6).

4. Disconnect and remove the Real Time Clock (RTC) battery (Section 5.10).

5. Wait five minutes.

6. Reconnect the RTC battery.

7. Reconnect the AC Adapter. Do

8. Turn on the computer.

NOTE:

Remember to set the date and time the next time the computer is turned on.

reinstall the battery pack yet.

not

2.3 Power-On Self-Test (POST)

The Power-On Self-Test (POST) is a series of tests that run every time the computer is turned on. POST verifies that the system is configured and functioning properly.

To run POST, complete the following steps:

1. Complete the preliminary steps (Section 2.1).

2. Turn on the computer.

If POST does not detect any errors, the computer beeps once or twice to indicate that POST has run successfully. The computer boots from the hard drive or from a bootable diskette if one is installed in the diskette drive.

Troubleshooting

2-3

2.4 POST Error Messages

If the system is not functioning well enough to run POST, or if the display is not functioning well enough to show POST error messages, refer to the Troubleshooting tables in Section 2.6.

If POST detects an error, one of the following events occurs:

A message with the prefix "WARNING" appears, informing you where the error

■

occurred. The system pauses until you press F1 to continue.

A message with the prefix "FATAL" appears, informing you where the error

■

occurred. After the message, the system emits a series of beeps, then stops.

The system emits a series of beeps, then stops.

■

Warning messages indicate that a potential problem, such as a system configuration error, exists. When F1 is pressed, the system should resume. You should be able to correct problems that produce WARNING messages.

If you receive one of the error messages listed below, follow the recommended action.

Table 2-1

Warning Messages

Message Description Recommended Action

CMOS checksum invalid, run SCU CMOS RAM information has

been corrupted.

CMOS failure, run SCU CMOS RAM has lost power. Run Computer Setup to reinitialize

Diskette controller error The diskette drive controller

failed to respond to the recalibrate command.

Diskette track 0 failed The diskette drive cannot read

track 0 of the diskette in the drive.

Run Computer Setup to reinitialize CMOS-RAM.

CMOS-RAM.

If there is no diskette drive in the system, run Computer Setup to properly configure the CMOS-RAM to show no diskette drive present. If the problem persists, or if a diskette drive is present, complete these steps until the problems is solved:

1. Check diskette drive connections.

2. Replace diskette drive.

3. Replace system board.

Try another diskette. If the problem persists, you may need to replace the diskette drive.

Continued

2-4

Troubleshooting

Table 2-1

Continued

Message Description Recommended Action

Hard disk controller error The hard drive controller failed

Keyboard controller failure The keyboard failed the self-

Keyboard failure The keyboard failed to respond

No interrupts from Timer 0 The periodic timer interrupt is

ROM at xxxx (LENGTH yyyy) with nonzero checksum (zz)

Time/Date corrupt - run SCU The time and date stored in

Hard disk xx failure (or error) A failure or an error occurred

to respond to the reset command.

test command.

to the RESET ID command.

not occurring.

An illegal adapter ROM was located at the specified address.

the real time clock have been corrupted, possibly by a power loss.

when trying to access the hard drive.

Check the drive parameters. Turn off the system and check all related connections.

Replace the system board.

Replace the keyboard. If the problem persists, replace the system board.

Replace the system board.

Check the external adapter (such as a video card) to determine if it is causing the conflict.

1. Run Computer Setup.

2. If problems persists, replace system board.

1. Run ScanDisk.

2. Check disk in DOS and Windows 95.

Fatal errors emit a beep and may display a FATAL message. Fatal errors indicate severe problems, such as a hardware failure. Fatal errors do not allow the system to resume. Some of the Fatal error beep codes are listed at the end of this section.

Table 2-2

Fatal Error Messages

Message Description Beep code

CMOS RAM test failed A walking bit test of CMOS RAM location 0E

DMA controller faulty A sequential read/write of the transfer count

Faulty DMA page registers A walking bit read/write of the 16 DMA

Faulty refresh circuits A continuous read/write test of port 61h found

Interrupt controller failed A sequential read/write of various Interrupt

ROM checksum incorrect A checksum of the ROM BIOS does not match

RAM error at location xxxx RAM error occurred during memory test. None

Beep codes are defined in Table 2-3.

(Hex) - 3F (Hex) failed.

and transfer address registers within the primary and secondary DMA controllers failed.

controller page registers starting at location 80 Hex failed.

that bit 4 (Refresh Detect) failed to toggle within an allotted amount of time.

Controller registers failed.

the byte value at F000:FFFF.

Troubleshooting

2-5

Table 2-3

Fatal Error Beep Codes

Beep Code Beep Sequence Description Recommended Action

0 S-S-S-P-S-S-L-P The DMA page registers are

1 S-S-S-P-S-L-S-P The refresh circuitry is faulty.

2 S-S-S-P-S-L-L-P The ROM checksum is incorrect.

3 S-S-S-P-L-S-S-P The CMOS RAM test failed.

4 S-S-S-P-L-S-L-P The DMA controller is faulty.

5 S-S-S-P-L-L-S-P The interrupt controller failed.

6 S-S-S-P-L-L-L-P The keyboard controller failed.

7 S-S-L-P-S-S-S-P Graphics adapter is faulty.

8 S-S-L-P-S-S-L-P Internal RAM is faulty. Replace memory board or

S = Short, L = Long, P = Pause

NOTE:

faulty.

Replace system board.

system board if memory on system board is faulty.

2.5 Compaq Utilities

Compaq Utilities contain several functions that

Determine if various computer devices are recognized by the system and are

■

operating properly.

Provide information about the system once it is configured.

■

Compaq Utilities include the following programs:

Computer Setup

■

Compaq Diagnostics

■

To access Compaq Utilities:

1. Turn on or restart the computer by clicking StartÆShut DownÆRestart the computer.

2. Press

when the blinking cursor appears in the upper-right corner of the display.

F10

3. Select a menu option.

2-6

Troubleshooting

Selecting Computer Setup or Compaq Diagnostics for Windows

The computer features two system management utilities:

■

Computer Setup

is a system information and configuration utility that can be used even when your operating system is not working or will not load. It includes custom settings that are not available in Windows.

To configure a device in Windows NT 4.0, you must use Computer Setup.

■

Compaq Diagnostics for Windows

is a system information and diagnostic utility that is used within the Windows operating system. Use Compaq Diagnostics for Windows to test system components and to display system information whenever possible.

To configure a device in Windows 95 or 98 use the operating system itself. Windows 95 and 98 can be used to add and remove programs, and provide Wizards to ensure proper device drivers are installed. Diagnostics for Windows is NOT a configuration tool and might only test devices that are properly configured by the operating system.

It is not necessary to configure a device connected to a USB connector on

NOTE:

the computer or an optional docking base.

Using Computer Setup

All information and settings in Computer Setup are accessed from the File, Security, or Advanced menus.

Your settings in Computer Setup are not affected by updating the system ROM.

NOTE:

To view information or change a setting in Computer Setup:

1. Turn on or restart the computer. When the blinking cursor appears in the upper-right corner of the screen, press

To change the language, press F2.

■

To view navigation information, press F1.

■

To return to the Computer Setup menu from anywhere in Computer Setup,

■

press

Esc

F10

2. Select the File, Security, or Advanced menu.

3. To close Computer Setup and restart the computer

Select FileÆIgnore Changes and Exit, then press

■

Enter

Select FileÆSave Changes and Exit, then press

■

4. To confirm your choice, press

F10

Enter

Troubleshooting

2-7

File Menu

Begin here To do this

System information

Save to floppy Save system configuration to a diskette.

Restore from floppy Restore system configuration from a diskette.

Restore defaults Replace configuration settings in Computer

Ignore changes and exit Cancel changes entered during the current

Save changes and exit Save changes, then exit and restart the

View identification information about the

■

computer, docking base, and battery packs.

View specification information about the

■

processor, memory and cache size, and ROM date and family.

(The diskette contains your personal configuration, so you should restore from the diskette before using the System Recovery CD-ROM.)

Setup with factory default settings. (Identification information is retained.)

Computer Setup session, then exit and restart the computer.

computer.

Security Menu

Begin here To do this

Setup password Enter, change, or delete a setup password.

Power-On password Enter, change, or delete a power-on password.

Password options Enable/disable:

QuickLock/QuickBlank

■

Lock keyboard and touchpad at startup.

■

(These features can be enabled only when a power-on password is set.)

DriveLock passwords Enter, change, or delete a DriveLock password.

Device security Enable/disable

Ports or diskette drives.

■

Diskette write.

■

CD-ROM or diskette startup.

■

Settings for a DVD-ROM can be entered in

NOTE:

the CD-ROM field.

System IDs Enter identification numbers for the computer, a

docking base, and battery packs.

2-8

Troubleshooting

Advanced Menu

Begin here To do this

Language (or press F2) Change the Computer Setup language.

Boot Options Enable/disable

QuickBoot, which starts the computer more

■

quickly by eliminating some startup tests. (If you suspect a memory failure and want to test memory automatically during startup, you may want to disable QuickBoot.) MultiBoot, which enables you to set a startup sequence that can include any drives in the system.

Device Options

Enable/disable the embedded numeric keypad

■

at startup.

Enable/disable multiple standard pointing

■

devices at startup. When this feature is disabled, only one pointing device is activated at startup.

Enable/disable USB legacy support for one USB

■

mouse and one USB keyboard. (When USB legacy support is enabled, the keyboard and mouse work without a loaded USB driver.)

Set an optional external monitor or overhead

■

projector connected to a video card in a docking base as the primary device. (When the computer display is set as secondary, the computer must be shut down before undocking.)

Set video-out mode to NTSC (default), NTSC-J,

■

PAL, or PAL-M.

Change the parallel port mode to or from EPP, standard, bidirectional, or ECP.

Troubleshooting

2-9

Using Compaq Diagnostics for Windows

1. Access Compaq Diagnostics for Windows by selecting Start Æ Settings

Control Panel Æ Compaq Diagnostics.

2. To select a category, choose one of two methods:

Select the Categories menu, then select a category from the drop-down list.

■

Select a category icon on the toolbar.

■

3. To run diagnostic tests

a) Select the Test tab.

b) In the scroll box, select the category or device you want to test.

c) Select the Quick, Complete, or Custom test type.

d) Select the Interactive or Unattended test mode.

e) Select the Begin Testing button.

f) View test information by selecting a report from the Status, Log, or Error tab.

4. To print the information or save it to a drive, select the File menu, then select Print or Save As.

5. To exit, select the File menuÆExit.

Factory Default Settings

Default settings that do not apply to the computer will appear in gray.

NOTE:

Table 2-4

Initialization

Enable POST Memory Test Checked (enabled)

Keyboard Num Lock Unchecked (Off)

Hard drive boot sequence

1 Hard drive in the computer MultiBay

2 Hard drive in the computer hard drive bay

3 Hard drive in the expansion base or convenience

4 Hard drive in the expansion base or convenience

Boot display Auto

Language Language of country

base half-height/MultiBay

base MultiBay

2-10

Troubleshooting

Table 2-5

Ports

Serial port 3F8, IRQ4

Infrared port 2F8, IRQ9

Parallel port 378, IRQ7

Ethernet port 300, IRQ11

Table 2-6

Power

Low Battery Warning Beep Checked (enabled)

External Energy Saving Monitor Connected Unchecked (not connected)

Power Management

Enabled While operating on battery power

Conservation Level High

Level Definition

High Suspend Time: 3 minutes

Medium Suspend Time: 5 minutes

Custom Suspend Time: disabled

Hibernation Timeout: Immediate Drive Timeout: 1 minute Screen Timeout: 1 minute

Hibernation Timeout: 1 hour Drive Timeout: 2 minutes Screen Timeout: 3 minutes

Hibernation Timeout: low battery Drive Timeout: always on Screen Timeout: always on

Table 2-7

Security

Enable QuickLock/QuickBlank Unchecked (Disabled)

Enable Power-On Password Unchecked (Disabled)

Disable Serial/Infrared Ports Unchecked (Enabled)

Disable Parallel Port Unchecked (Enabled)

Disable PC Card Slots Unchecked (Enabled)

Setup Password Password blank

Power-On Password Password blank

Diskette Drives

Disable Diskette Drives Unchecked (Enabled)

Disable Diskette Boot Unchecked (Enabled)

Troubleshooting

2-11

2.6 Troubleshooting Without Diagnostics

This section provides information about how to identify and correct some common hardware, memory, and software problems. It also explains several types of messages that may be displayed on the screen.

Since symptoms can appear to be similar, carefully match the symptoms of the computer malfunction against the problem description in the Troubleshooting tables to avoid a misdiagnosis.

Before Replacing Parts

When troubleshooting a problem, check the following items for possible solutions before replacing parts:

Verify that cables are connected properly to the suspected defective parts.

■

Verify that all required device drivers are installed.

■

Verify that all printer drivers have been installed for each application.

■

Obtaining Update Information with Info Messenger

Compaq Info Messenger allows you to set a customized search of the Compaq Web site. By registering for this utility, you can stay up to date with software and hardware information specific to your system.

To access Compaq Info Messenger, go to www.compaq.com and select Info

■

Messenger.

To register, follow the instructions on the Info Messenger page. When your

■

registration is complete, you can

Implement your customized search whenever you prefer from the Info

■

Messenger page.

Set Info Messenger to send you the information by email as it becomes available.

■

Info Messenger will also inform you if there are updates to the system ROM for your computer.

2-12

Troubleshooting

Checklist for Solving Problems

If you encounter a minor problem with the computer or software applications, go through the following checklist for possible solutions:

Is the computer connected to an external power source, or does it have a fully

■

charged battery pack installed?

Are all cables connected properly and securely?

■

Did the diskette drive contain a nonbootable diskette when you turned on the

■

computer?

Are all the needed device drivers installed?

■

Are printer drivers installed for each application?

■

If the problem appears related to a software application, check the documentation provided with the software.

Table 2-8

Solving Audio Problems

Problem Possible Cause Solution

Computer does not beep after the Power-On Self-Test (POST).

Internal speaker does not produce sound when an external audio source is connected to the stereo line-jack.

Volume may be muted Uncheck the mute box in the volume

System beeps have been turned down.

Volume may be turned off or set too low.

Line input may not be connected properly.

Headphones or speakers are connected to the stereo speaker/ headphone jack, which disables the internal speakers.

Use the Fn+F5 hotkeys to turn up the system volume.

Adjust the overall volume by

■

pressing the Fn+F5 hotkeys.

Adjust the sliding mixer controls by

■

double-clicking the speaker icon on the Windows taskbar.

Check line input connection.

Disconnect the head-phones or speakers to enable the internal speakers.

properties.

Continued

Troubleshooting

2-13

Table 2-8

Continued

Problem Possible Cause Solution

External microphone does not work.

The microphone may not be

Sound source not selected. Ensure that microphone is selected

Audio settings are not set

Volume control on the computer

No sound from headphones Volume or mixing controls set

Sound source not selected. Verify that the sound source is

The headphones are connected

Volume too low or too loud Volume or mixing controls set

You are using the wrong type of microphone or microphone plug for the computer.

connected properly.

correctly.

is turned down.

incorrectly.

to the wrong jack.

incorrectly.

Check to see if you are using a monophonic electret condenser micro-phone with a 3.5-mm plug.

Ensure that the micro-phone plug is properly connected to the mono microphone jack.

as the recording source in Control Panel Æ Multimedia and that the recording level is adjusted.

Check the game program's audio settings.

Adjust the computer volume with the

hotkeys.

Fn+F5

Adjust the overall volume with the

■

hotkeys.

Fn+F5

Use the mixing features available

■

by double-clicking the speaker icon on the Windows taskbar.

selected in Control Panel

Multimedia.

Check the connection.

Adjust the overall volume with the

■

hotkeys.

Fn+F5

Replace the battery pack with

■

another fully charged battery pack.

Check the mixing features available

■

by double-clicking the speaker icon on the Windows taskbar.

2-14

Table 2-9

Solving Battery/Battery Gauge Problems

Problem Possible Cause Solution

Computer is beeping and battery power light is blinking

Computer battery charge light blinks to indicate low battery condition, but computer does not beep.

Troubleshooting

Battery pack charge is low.

Volume turned down too low. Turn up the volume using the Fn+

hotkeys.

Charge the battery pack by

■

connecting to an external power source.

Replace the battery pack with

■

another fully charged battery.

Initiate Hibernation or turn the

■

computer off until AC power or a fully charged battery is available.

Continued

Table 2-9

Continued

Problem Possible Cause Solution

Battery pack will not charge. Battery pack was exposed to

temperature extremes.

Battery pack is already charged. No action required.

Battery pack has exceeded its

useful life cycle.

Computer shut down and memory was lost when

Hibernation was not initiated before removing the battery pack.

replacing the battery pack.

Battery charge does not last very long.

Battery is exposed to higher temperatures.

Battery is exposed to extremely

cold temperatures.

Battery conservation is disabled

or set to drain.

An external device is draining the

battery.

Battery gauge may be

inaccurate and require recalibration.

Date and time must be set every time computer is turned on.

The Real Time Clock battery has reached the end of its useful life.

Battery gauge seems inaccurate. The battery pack may need

calibration.

The battery pack has reached the

end of its useful life.

Battery pack is warm after

Warming occurs during charging. No action required.

charging.

Allow time for the battery pack to return to room temperature.

Use a different battery pack.

Work is lost.

Put the computer in a cooler place and recharge the battery pack.

Put the computer in a warmer place and recharge the battery pack.

The recommended operating

NOTE:

temperature range for the battery is from 10GC to 40GC (50GF to 104GF). The recommended storage temperature range for the battery is from 0GC to 30GC (32GF to 86GF).

Reset the battery conservation level.

Turn off or remove any external device or PC Cards when not in use.

Recalibrate the gauge.

Restore power, then turn on the

■

computer with the power switch

Replace the Real Time Clock

■

battery.

Recalibrate the battery.

Replace the battery pack.

Troubleshooting

2-15

Table 2-10

Solving Compact Disc and DVD-ROM Problems

Problem Possible Cause Solution

Drive cannot read a disc Disc is not properly seated in the

Disc is loaded in the loading tray

Disc has a scratch on its surface. Insert a different disc.

CD-ROM drive or DVD-ROM drive is not detected by the computer.

If you are running a version of

drive.

upside down.

Drive is not connected properly. If you are running a version of

Open the loading tray, insert the disc, then close the tray.

Open the loading tray, turn over the disc (label facing up), then close the tray.

Windows that was pre-installed by Compaq, remove the drive from the MultiBay and reinsert it.

Windows that was not pre-installed by Compaq, turn off the computer. Then remove the drive from the MultiBay and reinsert it.

Table 2-11

Solving Diskette Drive/SuperDisk LS-120 Drive Problems

Problem Possible Cause Solution

Drive cannot write to a diskette. Diskette is not formatted. Format the diskette:

If you are using Windows 95 or Windows 98:

From the Windows desktop, select

My Computer. Select 3.5-in. Floppy (A).

Select File, then Format.

Fill in the appropriate information,

then select Start.

If you are using Windows NT 4.0, format the diskette by entering

format a:

Diskette is write-protected. Use another diskette that is not write-

Writing to the wrong drive. Check the drive letter in your path

Not enough space is left on the diskette.

Drive is disabled. Enable the proper drive through

Disable diskette write ability is turned on.

protected or disable the write-protect feature.

statement.

Save the information to another diskette.

Device Manager.

Run Computer Setup. Select the Storage icon. Make sure Disable diskette write ability is not checked.

at the system prompt.

Continued

2-16

Troubleshooting

Table 2-11

Continued

Problem Possible Cause Solution

System cannot start up from diskette or SuperDisk LS-120 drive.

A bootable diskette is not in the drive.

Diskette bootability is disabled in Computer Setup.

Verify that a diskette with the necessary system files is in the drive.

Enable diskette bootability in Computer Setup, Security menu.

Table 2-12

Solving Hard Drive Problems

Problem Possible Cause Solution

Accessing information on the hard drive is much slower than usual.

Hard drive does not work. Hard drive is not seated properly. Turn off and unplug the computer,

Errors occur after starting from an additional hard drive.

System does not recognize a hard drive.

DriveLock settings cannot be accessed in Computer Setup.

Hard drive entered low power state due to timeout and is now exiting from it.

Hard drive is fragmented/not optimized or has errors.

Additional hard drive has not been specially prepared with necessary software.

The drive is not seated properly. Remove, then reinsert the drive.

The drive is damaged. Run ScanDisk on the drive.

The drive was inserted while system was on or in Suspend or Hibernation.

The DriveLock settings are accessible only when you enter Computer Setup by turning on (not restarting) the computer.

Wait for the system to restore the previously saved data to its state prior to initiating a low power state.

Run ScanDisk and Disk Defragmenter.

remove the hard drive, and reinsert the hard drive.

Boot from the original hard drive or a specially prepared hard drive.

Shut down the computer before inserting removing a hard drive.

Completely turn off the computer. Turn the computer back on, then run Computer Setup by pressing when the blinking cursor light appears upper-right on the screen.

F10

Troubleshooting

2-17

Table 2-13

Solving Infrared Problems

Problem Possible Cause Solution

Cannot communicate with another computer

Cannot transmit data. Direct sunlight, fluorescent light,

The appropriate software is not running on both computers.

The other computer does not have an IrDA-compliant infrared port. Your Compaq computer uses the IrDA communications protocol.

The pathway between the infrared ports is obstructed, one port is more than 30 degrees (plus or minus 15 degrees off the center line) from the other, or the ports are more than one meter apart.

There is an interrupt request (IRQ) conflict.

There is a baud rate conflict. Select the same baud rate for both

There is a conflict with the # bits. Select the same # bits setting for both

There is a stop byte conflict. Select the same stop byte for both

There is a parity conflict. Select the same parity setting for both

or flashing incandescent light is close to the infrared connections.

There is interference from other wireless devices.

There is a physical obstruction in the way.

One of the units was moved during data transmission.

The orientation of the units is wrong.

The distance between the units is too great.

Install the appropriate software on the second device, start the second device, and start the program on both computers.

Communication between infrared devices must use the same communications protocol. Check the manufacturers instructions for connecting with infrared devices or try connecting with a device you know to be IrDA-compliant.

Remove the obstruction, align the infrared ports to within 30 degrees, and position computers within 1.5 feet (about 0.5 meter) of each other.

Check for IRQ conflicts in the Device Manager If two devices have the same IRQ address, reassign one of the devices.

computers.

Remove the interfering light source(s).

Keep remote control units such as wireless headphones and other audio devices away from the infrared connections.

Do not place objects that will interfere with a line-of-sight data transmission between the two units.

Do not move either unit during data transmission.

Adjust the devices so that they point directly at each other.

Verify that devices are not more than

1.5 feet (0.5 meter) apart.

Continued

2-18

Troubleshooting

Table 2-13

Continued

Problem Possible Cause Solution

Infrared port doesnt work. Direct sunlight, fluorescent light,

or flashing incandescent light is close to the infrared connections.

There is interference from other wireless devices.

IR has been disabled. Run IR configuration utility in Control

Remove the interfering light source(s).

Keep remote control units such as wireless headphones and other audio devices away from the infrared connections.

Panel.

Table 2-14

Solving Keyboard Problems

Problem Possible Cause Solution

Screen is blank and keyboard is working.

Embedded numeric keypad on computer keyboard is disabled.

A screen timeout has been initiated..

QuickLock/QuickBlank has been initiated

LCD has been disabled. Press

Num Lock function is not turnedonPress

Press any key to refresh the screen.

To enable the keyboard and return your information to the screen, enter your power-on password.

monitor to internal LCD.

Lock function and embedded numeric keypad.

to cycle from external

Fn+F4

Fn+Num Lk

to enable the Num

Table 2-15

Solving Modem Problems

Problem Possible Cause Solution

Modem loses connection. The cable connection from the

phone line to the modem is loose.

Call Waiting has not been disabled.

There is noise or excessive traffic on the phone line.

Modem not responding Modem is not set up correctly in

system BIOS.

Check to make sure the telephone cable is properly connected.

Disable Call Waiting:

Select Start

Panel Æ select Modems. From the General tab of the

Modems Properties page, select Dialing Properties.

From the My Locations tab of the Dialing Properties page, check the box labeled This location has call waiting. Select *70, 70#, or 1170 from the drop-down list to disable call waiting.

Try connecting at a later time.

Check the computer BIOS setup. If it requires specific settings for modems, be sure that they have been enabled.

Setting Æ Control

Continued

Troubleshooting

2-19

Table 2-15

Continued

Problem Possible Cause Solution

Make sure the telephone number

Modem does not dial correctly. Telephone number is not entered

correctly in the modems dialing software.

Characters are garbled/transfer rates are slow.

Phone line noise causing a disconnection.

There is noise in the telephone line.

Hang-up Delay S Register (S10) set too low.

No dial tone Phone service is not connected to

the telephone wall jack.

The modem is not responding to commands from the computer keyboard.

■

you dialed is correct if you are using the dialing directory or the terminal mode.

Dial 1 if using dialing long distance.

■

The other line could be busy or not

■

answering.

Make sure call waiting is disabled.

■

The modem may not recognize an

■

international dial tone. Try the ATX3DT command and the telephone number.

Check your telephone and modem

■

cable connections. If they are a little loose, they can cause noise on the line.

Check with your local telephone

■

company for a phone line filter. Change S10 default to 150. To set S10=150:

Select Start Æ Programs

Accessories Æ HyperTerminal,

then go to Command Mode.

Type

Enter.

This command causes the modem to take longer to disconnect even if there is no noise on the line.

Verify that service from the local phone company by following these steps:

Unplug the telephone cable from the

telephone wall jack.

Connect a telephone to the jack,

pick up the handset, and listen for a

dial tone. If there is a dial tone,

reconnect the modem to the

telephone wall jack with the

telephone cable and make sure all

connections are secure.

If there is still no dial tone, contact

your local phone company or

building manager. Verify the modem and computer are

connected:

Select Start Æ Programs

Accessories Æ HyperTerminal, then

go to Terminal Mode.

Type

the modem displays OK, the modem

and computer are working together.

If the modem displays ERROR, or

does not respond, restart the

computer and repeat step 1.

Type

ATS10=150

and press the

ATDT ATH0

and press

and listen for dial tone.

to hang up.

Enter

key. If

Continued

2-20

Troubleshooting

Table 2-15

Continued

Problem Possible Cause Solution

Modem does not connect at highest speed.

Line conditions in your area or in the area you are calling may not support the highest connect speeds.

Another device on your telephone line may be causing interference.

The service or site called does not support 56K or supports an incompatible 56K implementation.

There is noise on the telephone line.

The telephone line does not support 56K implementation.

Have your telephone line checked by your local telephone service provider.

Try dialing an alternate telephone number for the service you are using.

Hang up an extension telephone and disconnect any other devices that may be using the same telephone line, then redial.

The standard internal modem supports the V.90 ITU Standard for 56K modems with backward compatibility to K56flex. To find an Internet Service Provider (ISP) who supports V.90 or K56flex protocols, go to the Compaq Web site at www.compaq.com.

The 56K protocol of an internal modem will fall back to lower speeds if the telephone line is too noisy for a high-speed connection.

Try using another telephone line.

Change the Hang-up Delay S Register:

Select StartÆ Programs

AccessoriesÆ HyperTerminal.

Go to Command Mode, type

ATS10=150, then press

This command causes the

NOTE:

modem to take longer to disconnect even if there is no noise on the line.

The 56K protocol requires that the telephone line contain no more than one analog-to-digital conversion.

Try connecting from an alternate site.

Enter

Table 2-16

Solving PC Card Problems

Problem Possible Cause Solution

Computer does not beep when a PC Card is inserted.

PC Card is not inserted properly. Try reinserting the card. Ensure that

Speakers are turned off or volume is turned down.

PC Card or card driver is not PCMCIA compliant.

the PC Card is inserted in the correct orientation. Insert the card gently to prevent damage to the pins.

Adjust the volume control on the computer.

Check the list of PC Cards tested successfully in Compaq PC Card platforms.

Continued

Troubleshooting

2-21

Table 2-16

Continued

Problem Possible Cause Solution

Computer beeps only once when a PC Card is inserted.

Network PC Card does not work. Necessary drivers are not

Storage PC Card does not work. SRAM and flash memory PC

The computer beeps once to indicate that a PC Card is recognized but not properly configured.

installed (turned on).

PC Card is not fully inserted or is upside down.

Network PC Card or driver is not PCMCIA compliant.

Cards require the memory card driver to be loaded.

You are trying to access the storage PC Card using the wrong drive letter.

The PC Card is not formatted. For memory cards, run MCFORMAT in

The card is not supported. Check the list of PC Cards tested

Storage cards, such as SRAM, do not work in the expansion base.

Before a new PC Card can be used, it may be necessary to perform an initial setup procedure. Follow the PC Card manufacturer's instructions for formatting a hard drive card or installing PC Card-specific drivers for a network card.

Refer to the instructions that came with the PC Card or contact the vendor for information on installing the correct drivers.

Ensure the PC Card is inserted correctly.

Check the list of PC Cards tested successfully in Compaq PC Card platforms.

Memory cards can only be accessed using DOS real mode drivers.

If you are running Windows 95, change the drive letter assignment in Device Manager

If you are running Windows NT 4.0, change the drive letter assignment through the Control Panel.

MS-DOS Mode to format the PC Card. For ATA cards, run ATAINIT, then run MCFORMAT in MS-DOS Mode to format the PC Card.

successfully in Compaq PC Card platforms.

Use the storage card in the computer.

2-22

Troubleshooting

Table 2-17

Solving Power Problems

Problem Possible Cause Solution

Computer will not turn on. Battery is discharged and

computer is not connected to a power source.

Battery is discharged and cables

to the external power source are unplugged.

Computer turned off while it was left unattended.

Computer initiated because of a critical low battery condition.

The computer initiated

Hibernation after a user-defined timeout expired.

Charge the battery pack.

■

Replace the battery pack.

■

Connect the computer to an external

■

power source.

Ensure that cables connecting the computer and the external power source are plugged in properly.

Charge the battery pack.

■

Replace the battery pack.

■

Connect the computer to an external

■

power source.

Turn on the computer.

Table 2-18

Solving Screen Problems

Problem Possible Cause Solution

Characters on computer display are dim.

Computer is in direct light.

The brightness control is not set properly.

You may have a screen saver or

screen blanking utility installed. Screen timeout was initiated. Press any key to light the screen. System initiated Suspend after a

user-defined timeout expired. Computer initiated a low battery

Suspend or Hibernation.

Power Management, which

controls Suspend and Hibernation,

is disabled and the battery pack

has discharged.

Computer screen is blank and external monitor displays

Display was switched to the

external monitor. information.

Display switch is stuck. Tap the switch.

hotkey combination does

Fn+F4

not switch between internal and

CRT or other display device is not

connected properly. external displays.

Move the computer or adjust the screen.

Adjust the brightness control by pressing the Fn+

F10

hotkeys.

Press any key to refresh the screen.

Press the suspend button to exit Suspend.

Replace the battery pack and exit

■

Suspend or Hibernation.

Connect the computer to an external

■

power source and exit Suspend or Hibernation.

Replace the battery pack and turn

■

on the computer.

Connect the computer to an external

■

power source and turn on the computer.

Press the computer screen; press

to display information on

Fn+F4

again to display information simultaneously on both screens.

Check your connections to ensure that an external device is connected properly.

Troubleshooting

2-23

Table 2-19

Solving USB Problems

Problem Possible Cause Solution

External device connected to a USB connector does not work.

External device connected to USB connector does not work during startup (before Windows 95 loads).

External devices in lower tiers do not work.

The operating system limits

external devices connected by

USB to two tiers which can

include no more than two hubs on

the first tier and no more than one

keyboard and one pointing device

on the first or second tier.

During startup, only two tiers are

supported by the USB port. These

tiers can include no more than

two hubs on the first tier and no

more than one keyboard and one

pointing device on the first or

second tier.

An unpowered hub is connected

to another unpowered hub.

Reduce the number of connected external USB devices to no more than two hubs on the first tier, and no more than one keyboard and one pointing device on the first or second tier.

Use the external device only after Windows 95 or Windows 98 has loaded.

Reduce the number of connected external USB devices to no more than two hubs on the first tier, and no more than one keyboard and one pointing device on the first or second tier.

Use only powered hubs.

Make sure that all unpowered hubs are immediately preceded by powered hubs in the USB chain.

2-24

Troubleshooting

chapter

ILLUSTRATED PARTS CATALOG

This chapter provides an illustrated parts breakdown and a reference for spare part numbers for components of the Compaq Armada M300.

3.1 Serial Number Location

When ordering parts or requesting information, provide the computer serial number and model number located on the bottom of the computer (Figure 3-1).

Figure 3-1. Serial Number Location

Illustrated Parts Catalog 3-1

3.2 Computer Major System Components

Figure 3-2. Major System Components

3-2 Illustrated Parts Catalog

Table 3-1

Spare Parts: Computer System Major Components

Item Description Spare Part Number

1 Display assembly

2 Keyboard 140375-XXX

3a 3b 3c 3d

4 Top cover with TouchPad 140381-001 5 Memory expansion board

6 Voltage converter board 136251-001 7 Processor board assembly

8 Modem connector board 140385-001 9 Mini PCI modem board, V.90, Type-I

10 Hard drive

11 PC Card Assembly 140384-001 12 Battery pack, Li-ion

13 CPU base enclosure 103755-001

11.3-inch, XGA, CTFT (SKU#’s 165288-XXX only)

11.3-inch, SVGA, CTFT

Belgian Brazilian Danish Finnish French French Canadian German

Miscellaneous Plastic Kit

Switch cover Modem cover Real time clock (RTC) battery RTC battery cover

256 MB 128 MB 64 MB 32 MB

Intel Pentium III 500 MHz Intel Celeron 450 MHz Intel Pentium II 333 MHz Intel Celeron 333 MHz

Mini PCI combination modem/network interface card (NIC), V.90, Type-I

12.0 GB

6.4 GB

4.3 GB

High capacity battery pack

LED board (not illustrated) 168641-001

-181

-201

-081

-101

-051

-121

-041

Italian International Japanese Korean Latin American

Spanish

Norwegian

-061

-003

-191

-AD1

-161

-091

Portuguese Spanish Swiss Taiwanese U.K. English U.S. English/

Canadian

171969-001 178654-001

-131

-071

-111

-AB1

-031

-001

136254-001

167136-001 135244-001 135243-001 135242-001

171968-001 171967-001 136250-001 136248-001

121896-001 153107-001

171971-001 136246-001 136245-001

136244-001 155065-001

Illustrated Parts Catalog 3-3

3.3 Miscellaneous Plastic Kit Components

Figure 3-3. Miscellaneous Plastic Kit Components

Table 3-2

Spare Parts: Miscellaneous Plastic Kit Components

Spare Part Number 136254-001

Item Description

1 Back rubber feet 2 Infrared lens 3 RTC (Real Time Clock) battery 4 RTC (Real Time Clock) battery cover 5 Front rubber feet 6 Display screw covers 7 PC Card door 8 PC Card door spring 9 Switch cover 10 Docking bay doors 11 Docking bay door springs 12 Modem cover 13 Power button 14 Modem card dummy

3-4 Illustrated Parts Catalog

3.4 Mass Storage Devices

Figure 3-4. Mass Storage Devices

Table 3-3

Spare Parts: Mass Storage Devices

Item Description Spare Part Number

1 Hard drive

2 External diskette drive, 1.44-megabyte, 3.5 inch/8.89 cm 136256-001 3 External diskette drive cable 140383-001 * 4X DVD-ROM drive (for use with Mobile Expansion Unit) 102266-001 * SuperDisk LS-120 drive (for use with Mobile Expansion Unit) 327456-003 * 24X Max CD-ROM drive (for use with Mobile Expansion Unit) 315082-002

* Not illustrated

12.0 GB

6.4 GB

4.3 GB

171971-001 136246-001 136245-001

Illustrated Parts Catalog 3-5

3.5 Miscellaneous

Table 3-4

Spare Parts: Miscellaneous (not illustrated)

Description Spare Part Number

Mobile Expansion Unit 140382-001 Armada M300 Maintenance & Service Guide 158340-001 PC Card modem 105993-001 Battery Charger 277734-001 AC Power Cord 246959-XXX

Australian Danish European/Middle

Eastern/African

Italian

External AC Adapter 163444-001 Return Kit 136257-001 Miscellaneous Screw Kit 136255-001 Modem, 56K, V.90 with integrated NIC 153107-001 Modem, 56K, V.90 121896-001 Hard drive adapter 155352-001 Battery charger 153991-001

246959-011 246959-081

246959-021 246959-061

Japanese Korean Swiss

U.K. English U.S. English

246959-291 246959-AD1 246959-AG1 246959-031 246959-001

3-6 Illustrated Parts Catalog

chapter

REMOVAL AND REPLACEMENT PRELIMINARIES

This chapter provides essential information for proper and safe removal and replacement service.

4.1 Tools Required

You will need the following tools to complete the removal and replacement procedures:

■ Magnetic Torx T-8 screwdriver (for all screws unless otherwise specified)

■ 9/32-inch socket for bushing guides

4.2 Service Considerations

Listed below are some of the considerations that you should keep in mind during disassembly and assembly procedures.

Plastic Parts

Using excessive force during disassembly and reassembly can damage plastic parts. Use care when handling the plastic parts. Apply pressure only at the points designated in the maintenance instructions.

IMPORTANT: As you remove each subassembly from the computer, place it (and all accompanying screws) away from the work area to prevent damage.

Removal and Replacement Preliminaries 4-1

Cables and Connectors

Cables must be handled with extreme care to avoid damage. Apply only the tension required to unseat or seat the cables during removal and insertion. Handle cables by the connector whenever possible. In all cases, avoid bending, twisting, or tearing cables. Ensure that cables are routed in such a way that they cannot be caught or snagged by parts being removed or replaced. Handle flex cables with extreme care; they tear easily.

CAUTION: When servicing the computer, ensure that cables are placed in their

proper location during the reassembly process. Improper cable placement can damage the computer.

4.3 Preventing Damage to Removable Drives

Removable drives are fragile components that must be handled with care. To prevent damage to the computer or a removable drive, or loss of information, observe these precautions:

■ Before removing or inserting a hard drive, shut down the computer. If you are

unsure whether the computer is off or in Hibernation, turn the computer on, then shut it down.

■ Before removing a diskette drive, CD-ROM drive, SuperDisk LS-120 drive, or a

DVD-ROM drive, ensure that a diskette or disc is not in the drive. Ensure that the drive tray is closed.

■ Before handling a drive, ensure that you are discharged of static electricity. While

handling a drive, avoid touching the connector.

■ Handle drives on surfaces that have at least one inch of shock-proof foam.

■ Avoid dropping drives from any height onto any surface.

■ Do not use excessive force when inserting a drive into a drive bay.

■ Avoid exposing a hard drive to products that have magnetic fields such as monitors

or speakers.

■ Avoid exposing a drive to temperature extremes or to liquids.

■ If a drive must be mailed, ship it in a suitable form of protective packaging.

Shipping the drive in standard packaging may not cushion it from destructive shock, vibration, temperature, or humidity. Place a mailing label with the wording “Fragile: Handle With Care” on the mailer.

■ After the hard drive has been removed from the computer, avoid turning the hard

drive and tray upside down. The drive is not secured to the tray and can fall out.

■ Do not place labels on the ventilation area on the hard drive.

■ Heed the labels on the hard drive.

4-2 Removal and Replacement Preliminaries

4.4 Preventing Electrostatic Damage

Many electronic components are sensitive to electrostatic discharge (ESD). Circuitry design and structure determine the degree of sensitivity. Networks built into many integrated circuits provide some protection, but in many cases the discharge contains enough power to alter device parameters or melt silicon junctions.

A sudden discharge of static electricity from a finger or other conductor can destroy static-sensitive devices or microcircuitry. Often the spark is neither felt nor heard, but damage occurs. An electronic device exposed to electrostatic discharge may not be affected at all and can work perfectly throughout a normal cycle. Or it may function normally for a while, then degrade in the internal layers, reducing its life expectancy.

Packaging and Transporting Precautions

Use the following grounding precautions when packaging and transporting equipment:

■ To avoid hand contact, transport products in static-safe containers such as tubes,

bags, or boxes.

■ Protect all electrostatic-sensitive parts and assemblies with conductive or approved

containers or packaging.

■ Keep electrostatic-sensitive parts in their containers until they arrive at static-free

workstations.

■ Place items on a grounded surface before removing them from their container.

■ Always be properly grounded when touching a sensitive component or assembly.

■ Place reusable electrostatic-sensitive parts from assemblies in protective packaging

or non-conductive foam.

■ Use transporters and conveyers made of antistatic belts and roller bushings. Ensure

that mechanized equipment used for moving materials is wired to ground, and that proper materials are selected to avoid static charging. When grounding is not possible, use an ionizer to dissipate electric charges.

Removal and Replacement Preliminaries 4-3

Workstation Precautions

Use the following grounding precautions at workstations:

■ Cover the workstation with approved static-dissipative material (refer to Table 4-2

later in this chapter).

■ Use a wrist strap connected to a properly grounded work surface and use properly

grounded tools and equipment.

■ Use field service tools, such as cutters, screwdrivers, and vacuums that are

conductive.

■ When using fixtures that must directly contact dissipative surfaces, use fixtures

made of static-safe materials only.

■ Keep work area free of nonconductive materials such as ordinary plastic assembly

aids and Styrofoam.

■ Handle electrostatic-sensitive components, parts, and assemblies by the case or

PCM laminate. Handle them only at static-free workstations.

■ Avoid contact with pins, leads, or circuitry.

■ Turn off power and input signals before inserting or removing connectors or test

equipment.

4-4 Removal and Replacement Preliminaries

Grounding Equipment and Methods

Grounding equipment must include either a wrist strap or a foot strap at a grounded workstation.

■ When seated, wear a wrist strap connected to a grounded system. Wrist straps are

flexible straps with a minimum of one megohm ±10% resistance in the ground cords. To provide proper ground, a strap must be worn snug against the skin. On grounded mats with banana-plug connectors, connect a wrist strap with alligator clips.

■ When standing, use foot straps and a grounded floor mat. Foot straps (heel, toe, or

boot straps) can be used at standing workstations and are compatible with most types of shoes or boots. On conductive floors or dissipative floor mats, use foot straps on both feet with a minimum of one-megohm resistance between the operator and ground. To be effective, the conductive strips must be worn in contact with the skin.

Other grounding equipment recommended for use in preventing electrostatic damage include:

■ Antistatic tape

■ Antistatic smocks, aprons, or sleeve protectors

■ Conductive bins and other assembly or soldering aids

■ Non-conductive foam

■ Conductive tabletop workstations with ground cord of one-megohm resistance

■ Static-dissipative table or floor mats with hard tie to ground

■ Field service kits

■ Static awareness labels

■ Material-handling packages

■ Non-conductive plastic bags, tubes, or boxes

■ Metal tote boxes

Removal and Replacement Preliminaries 4-5

Electrostatic Voltage Levels and Protective Materials

Table 4-1 shows how humidity affects the electrostatic voltage levels generated by different activities.

Table 4-1

Typical Electrostatic Voltage Levels

Relative Humidity

Event 10% 40% 55%

Walking across carpet 35,000 V 15,000 V 7,500 V Walking across vinyl floor 12,000 V 5,000 V 3,000 V Motions of bench worker 6,000 V 800 V 400 V Removing DIPS from plastic tube 2,000 V 700 V 400 V Removing DIPS from vinyl tray 11,500 V 4,000 V 2,000 V Removing DIPS from Styrofoam 14,500 V 5,000 V 3,500 V Removing bubble pack from PCB 26,500 V 20,000 V 7,000 V Packing PCBs in foam-lined box 21,000 V 11,000 V 5,000 V NOTE: 700 volts can degrade a product.

Table 4-2 lists the shielding protection provided by antistatic bags and floor mats.

Table 4-2

Static-Shielding Materials

Material Use Voltage Protection Level

Antistatic plastic Bags 1,500 V Carbon-loaded plastic Floor mats 7,500 V Metallized laminate Floor mats 15,000 V

4-6 Removal and Replacement Preliminaries

chapter

REMOVAL AND REPLACEMENT PROCEDURES

5.1 Serial Number

The computer serial number should be reported to Compaq when requesting information or ordering spare parts. The serial number is located on the bottom of the computer (Figure 5-1).

Figure 5-1. Serial Number Location

Removal and Replacement Procedures 5-1

5.2 Disassembly Reference Chart

Use the chart below to determine the section number to be referenced when removing components from the computer.

5.3 Disconnecting the Computer from the Mobile Expansion Unit

5.4 Disconnecting the Computer

5.5 Preparing the Computer for Disassembly

5.6 Battery Packs Removing the Battery Pack Replacing the Battery Pack

5.7 Hard Drives Removing a Hard Drive Inserting a Hard Drive

5.8 PC Cards Removing a PC Card Inserting a PC Card

5.9 Modem or Modem/NIC Card

5.10 Real Time Clock Battery

5.11 Keyboard

5.12 Memory Expansion Removing Memory Expansion Boards Installing Memory Expansion Boards

5.13 Switch Cover

5.14 Display Assembly

5.15 Top Cover with TouchPad

5.16 Voltage Converter Board

5.17 Modem Connector Board

5.18 PC Card Connector

5.19 Processor/System Board Assembly

Figure 5-2. Disassembly Reference Chart

5-2 Removal and Replacement Procedures

5.3 Disconnecting the Computer from the Mobile Expansion Unit

1. Turn off the computer.

2. Close the display.

3. Turn off and disconnect all external devices connected to the computer.

4. On the mobile expansion unit, press the docking release button ➊ to release the

expansion unit from the computer (Figure 5-3).

5. Lift the rear end of the computer to disconnect it from the computer expansion

connector

6. Pull the computer away from the mobile expansion unit tabs.

➋.

Figure 5-3. Disconnecting the Computer from the Mobile Expansion Unit

Removal and Replacement Procedures 5-3

5.4 Disconnecting the Computer

1. Disconnect the AC power cord from the AC adapter ➊ (Figure 5-4).

2. Unplug the power cord from the electrical outlet

3. Disconnect the AC adapter from the power connector on the left side of computer

➋.

➌.

Figure 5-4. Disconnecting the Computer

5-4 Removal and Replacement Procedures

5.5 Preparing the Computer for Disassembly

1. Disconnect the computer from the mobile expansion unit.

2. Shut down the computer.

3. Disconnect the AC adapter and all external devices connected to the computer.

4. Remove the battery pack (Section 5.6).

CAUTION: Failure to disconnect the AC Adapter from the computer and to remove the battery pack before removing and installing internal components can damage the equipment.

5. Remove the hard drive (Section 5.7).

6. Remove all PC Cards (Section 5.8).

Removal and Replacement Procedures 5-5

5.6 Battery Packs

WARNING: To reduce the risk of injury or damage to the battery pack, do not crush,

puncture, or incinerate the battery pack or short the metal contacts. Do not attempt to open or service the battery pack.

Removing the Battery Pack

1. Shut down the computer.

2. Turn the computer upside down.

3. Tilt the battery pack so it lies flat.

4. Slide in the two battery latches toward each other ➊ (Figure 5-5).

5. Rotate the battery pack 90 degrees toward the computer ➋, and lift up the battery

pack from the computer

➌.

Figure 5-5. Removing the Battery Pack

5-6 Removal and Replacement Procedures

Replacing the Battery Pack

WARNING: To prevent damage to the computer, do not insert a battery pack until the

computer is fully reassembled.

1. Turn the computer upside down.

2. Push the battery pack onto the computer until the contacts connect ➊, and rotate the

battery pack 90 degrees toward the back of the computer

3. Slide the two battery latches out (away from each other) ➌.

➋ (Figure 5-6).

Figure 5-6. Replacing the Battery Pack

Removal and Replacement Procedures 5-7

5.7 Hard Drives

Removing a Hard Drive

Before removing a hard drive, back up all information on the hard drive.

1. Shut down the computer.

2. Turn the computer upside down.

3. Remove the hard drive screw ➊ (Figure 5-7).

4. Pull up on the front bezel ➋.

5. Slide the hard drive out of the bay ➌.

Figure 5-7. Removing a Hard Drive

5-8 Removal and Replacement Procedures

Inserting a Hard Drive

1. Shut down the computer.

2. Turn the computer upside down.

3. Pull the bottom half of the bezel down.

4. Slide the hard drive into the bay until the connector is seated ➊ (Figure 5-8).

5. Push the front bezel down ➋.

6. Insert the hard drive screw ➌.

Figure 5-8. Inserting a Hard Drive

Removal and Replacement Procedures 5-9

5.8 PC Cards

The procedure for removing PC Cards varies with the operating system being used and with the kind of PC Card being removed.

In Windows 95 or Windows 98—

■ If you insert a PC Card while the computer is on, the computer beeps twice when the

card is ready for use.

■ If you remove a PC Card while the computer is on, the computer beeps twice when

the card is removed.

■ When a PC Card is in the system, the PC Card icon displays on the taskbar.

In Windows NT 4.0 with CardWare from Compaq—

■ If you insert a PC Card while the computer is on, the computer beeps three times

when the card is recognized.

■ If you remove a PC Card while the computer is on, the computer beeps three times

when the card is removed.

■ The PC Card icon displays in the taskbar whether or not a PC Card is in the system.

5-10 Removal and Replacement Procedures

Removing a PC Card

First, prepare the system for the removal:

CAUTION: If the computer is on and running Windows 95, failure to stop a PC Card before removing it may cause loss of data.

■ In Windows 95 or Windows 98—If the computer is on, stop the PC Card before you

remove it. To stop a PC Card, select the PC Card icon in the taskbar, then select the PC Card you want to stop. A message displays when the PC Card can be safely removed.

■ In Windows NT 4.0 with CardWare provided by Compaq—If the computer is on,

you must shut it down before removing some PC Cards. Refer to the PC Card documentation for removal requirements. Second, remove the PC Card:

1. Press the PC Card eject button ➊ (Figure 5-9).

2. Gently grasp the card and pull it out ➋.

Figure 5-9. Removing a PC Card

Removal and Replacement Procedures 5-11

Inserting a PC Card

CAUTION: To prevent damage to the connectors, use minimal pressure as you insert a

PC Card into the PC Card slot.

1. With the connector facing the computer and the label side up, insert the PC Card

in the slot, aligning the card on the two guide rails inside the PC Card slot (Figure 5-10).

2. Gently push the card into the slot until the card is seated.

Figure 5-10. Inserting a PC Card

5-12 Removal and Replacement Procedures

5.9 Modem or Modem/NIC Card

1. Prepare the computer for disassembly (Section 5.5).

2. If attached, disconnect the RJ-11 and RJ-45 cables from the computer.

3. Turn the computer upside down with the front facing forward.

4. Remove the two screws that secure the modem or modem/NIC card cover to the base

assembly

5. Lift the front edge of the cover and swing it back ➋.

6. Remove the cover ➌.

➊ (Figure 5-11).

Figure 5-11. Removing the Modem or Modem/NIC Card Cover

Removal and Replacement Procedures 5-13

7. Lift up on the back of the modem or modem/NIC card ➊, and swing it forward to

disconnect it from the system board ➋ (Figure 5-12).

8. Use the connector removal tool to disconnect all cables connected to the card ➌.

9. Remove the card.

Figure 5-12. Removing the Modem or Modem/NIC Card

Reverse the above procedure to install the modem or modem/NIC card.

5-14 Removal and Replacement Procedures

5.10 Real Time Clock (RTC) Battery

1. Prepare the computer for disassembly (Section 5.5).

2. Turn the computer upside down with the rear panel facing forward.

3. Remove the RTC battery cover by lifting it at the indentation ➊ (Figure 5-13).

4. Remove the battery from the base enclosure ➋.

5. Use the connector removal tool to disconnect the RTC battery cable from the system

➌.

board

6. Remove the battery.

Figure 5-13. Removing the RTC Battery

Reverse the above procedure to install the RTC battery.

Removal and Replacement Procedures 5-15

5.11 Keyboard

1. Prepare the computer for disassembly (Section 5.5).

2. Press down on each of the three release tabs ➊ along the top edge of the keyboard

(Figure 5-14).

3. Swing the top edge of the keyboard up and forward ➋.

Figure 5-14. Releasing the Keyboard

5-16 Removal and Replacement Procedures

4. Use the connector removal tool to release the keyboard cable from the ZIF connector

➊ (Figure 5-15).

5. Use the connector removal tool to disconnect the keyboard cable ➋.

6. Remove the keyboard.

Figure 5-15. Disconnecting the Keyboard Cable

Reverse the above procedure to install the keyboard.

Removal and Replacement Procedures 5-17

5.12 Memory Expansion

Removing the Memory Expansion Board

WARNING: Failure to unplug the power cord and to remove the battery pack before

installing a memory expansion board can damage the equipment and expose you to the risk of electrical shock.

CAUTION: Electrostatic discharge (ESD) can damage electronic components. Before beginning this procedure, ensure that you are properly grounded. For more information, refer to “Preventing Electrostatic Damage” in Chapter 4.

NOTE: There is only one memory expansion slot in the computer. Before upgrading memory, you must remove the memory board that came with the computer.

1. To remove the memory board, pull away the plastic retention clips on each side of

the memory board

2. Lift the edge of the memory expansion board and slide it gently out of the memory

expansion slot at a 45-degree angle

3. If applicable, turn back the memory insulator.

4. Place the removed memory expansion board in an electrostatic-safe container.

➊. The memory expansion board tilts upward (Figure 5-16).

➋.

Figure 5-16. Removing the Memory Board

5-18 Removal and Replacement Procedures

Installing the Memory Expansion Board

1. To add a memory board, insert the memory expansion board into the empty memory

expansion slot at a 45-degree angle while tilted (Figure 5-17).

NOTE: All memory expansion boards supported by the computer are keyed (notched) to ensure correct positioning.

2. Push the memory expansion board down until the plastic retention clips ➋ snap into

place.

3. Replace the memory insulator, if applicable.

4. Replace the keyboard by gently pressing down on the top of the keyboard until it

clicks into place.

➊. Then slide it gently into place until it is seated

Figure 5-17. Installing the Memory Board

Removal and Replacement Procedures 5-19

5.13 Switch Cover

1. Prepare the computer for disassembly (Section 5.5).

2. Remove the keyboard (Section 5.11).

3. Position the computer so the rear panel faces forward.

4. Remove the two screws from the rear panel of the computer that secure the switch

cover to the base assembly (Figure 5-18).

Figure 5-18. Removing the Switch Cover Screws

5-20 Removal and Replacement Procedures

5. Position the computer so the front faces forward.

6. Open the computer as far as it will open.

7. Swing the back edge of the switch cover forward ➊ (Figure 5-19).

8. When the switch cover disengages from the base assembly, remove the cover ➋.

Figure 5-19. Removing the Switch Cover

Reverse the above procedure to install the switch cover.

Removal and Replacement Procedures 5-21

5.14 Display Assembly

1. Prepare the computer for disassembly (Section 5.5).

2. Remove the keyboard (Section 5.11).

3. Remove the switch cover (Section 5.13).

4. Use the connector removal tool to disconnect the inverter cable ➊ from the system

board (Figure 5-20)

5. Use the connector removal tool to disconnect the microphone cable ➋ and the video

➋ from the system board.

cable

6. Remove display screw covers from the hinges connecting the display assembly to the

base assembly.

7. Remove the four screws (two on each hinge) ➌ that secure the display assembly to

the base assembly.

NOTE: When these four screws are removed, the display assembly is unsupported.

Make sure to support the display assembly when removing these screws.

8. Remove the display assembly.

Figure 5-20. Removing the Display Assembly

Reverse the above procedure to install the display.

5-22 Removal and Replacement Procedures

5.15 Top Cover with TouchPad

NOTE: The power button and infrared lens are easily dislodged when the top cover is

removed. Make note of their location and orientation before removing the top cover.

1. Prepare the computer for disassembly (Figure 5.5).

2. Remove the keyboard (Section 5.11).

3. Remove the switch cover (Section 5.13).

4. Remove the display assembly (Section 5.14).

5. Turn the computer upside down with the rear panel facing forward.

6. Remove the seven screws from the bottom of the computer (Figure 5-21).

7. Remove the four screws from the back of the computer.

Figure 5-21. Removing the Top Cover Screws

Removal and Replacement Procedures 5-23

8. Turn the computer right side up with the front facing forward.

9. Use the connector removal tool to disconnect the TouchPad cable ➊ from the system

board (Figure 5-22).

10. Press in on the front of the top cover at the highlighted area ➋, and swing the front

edge of the cover up and away from the base assembly

11. Remove the top cover.

➌.

Figure 5-22. Removing the Top Cover

Reverse the above procedure to install the top cover. Make sure the power switch and infrared lens are replaced in their appropriate locations before attempting to install the top cover.

5-24 Removal and Replacement Procedures

5.16 Voltage Converter Board

NOTE: When removing the voltage converter board from the system board, be careful of

the connectors on the right side of the voltage converter board.

1. Prepare the computer for disassembly (Section 5.5).

2. Remove the keyboard (Section 5.11).

3. Remove the switch cover (Section 5.13).

4. Remove the display assembly (Section 5.14).

5. Remove the top cover (Section 5.15).

6. Remove the two screws ➊ that secure the voltage converter board to the system

board (Figure 5-23).

7. Lift up the left side of the voltage converter ➋ until it clears the left edge of the base

assembly.

8. Pull the voltage converter board to the left to disconnect it from the system board ➌.

Figure 5-23. Removing the Voltage Converter Board

Reverse the above procedure to install the voltage converter board. Make sure to attach the connectors on the right side of the board to the system board first.

Removal and Replacement Procedures 5-25

5.17 Modem Connector Board

1. Prepare the computer for disassembly (Section 5.5).

2. Remove the modem or modem/NIC card (Section 5.9).

3. Remove the keyboard (Section 5.11).

4. Remove the switch cover (Section 5.13).

5. Remove the display assembly (Section 5.14).

6. Remove the top cover (Section 5.15).

7. Remove the two screws that secure the modem connector board ➊ to the system

board (Figure 5-24).

8. Lift up on the modem connector board ➋ to disconnect it from the system board.

9. Remove the modem connector board.

Figure 5-24. Removing the Modem Connector Board

Reverse the above procedure to install the modem connector board.

5-26 Removal and Replacement Procedures

NOTE: When installing the modem connector board, make sure the fan cable is routed between the connector and the modem connector area (Figure 5-25). Do not route the cable next to the heat sink.

Figure 5-25. Routing the Fan Cable

Removal and Replacement Procedures 5-27

5.18 PC Card Assembly

IMPORTANT: There are different-sized screws securing the PC Card assembly to the

system board. Make note of the location of these screws.

1. Prepare the computer for disassembly (Section 5.5).

2. Remove the modem or modem/NIC card (Section 5.9).

3. Remove the keyboard (Section 5.11).

4. Remove the switch cover (Section 5.13).

5. Remove the display assembly (Section 5.14).

6. Remove the top cover (Section 5.15).

7. Remove the modem connector board (Section 5.17).

8. Remove the two silver screws ➊ on the left side of the PC Card assembly (Figure 5-

26)

9. Remove the black screw ➋ securing the front of the PC Card assembly to the base

assembly.

10. Lift the left side of the PC Card assembly ➌ to disconnect it from the system board.

Figure 5-26. Removing the PC Card Assembly

Reverse the above procedures when installing the PC Card assembly. IMPORTANT: Be sure to route the audio and light board cables between the PC Card

assembly and the base plastic. Do not route the cables near the heat sink.

5-28 Removal and Replacement Procedures

5.19 System Board

IMPORTANT: There are different-sized screws securing the system board to the base

enclosure. Make note of the location of these screws. Also, when the system board is removed, components of the base enclosure may come loose. Note the location and orientation of all base enclosure components.

1. Prepare the computer for disassembly (Section 5.5).

2. Remove the RTC battery (Section 5.10).

3. Remove the keyboard (Section 5.11).

4. Remove the switch cover (Section 5.13).

5. Remove the display assembly (Section 5.14).

6. Remove the top cover (Section 5.15).

7. Remove the modem connector board (Section 5.17).

8. Remove the PC Card assembly (Section 5.18).

9. Position the computer so the front faces forward.

10. Use the connector removal tool to disconnect the left battery terminal cable ➊, right

battery cable

➋, fan cable ➌, LED cable ➍, and speaker cable ➎ (Figure 5-27)

Figure 5-27. Disconnecting Cables from the System Board

Removal and Replacement Procedures 5-29

11. Remove the two screws from the back of the computer that secures the system board

to the base enclosure

12. Remove the silver screw from the heat sink ➋.

13. Remove the black screws from around the fan ➌, around the USB port ➌, and

around the battery cable in the upper left of the board

14. Lift up the rear edge of the system board.

15. Remove the system board.

➊ (Figure 5-28).

➌.

Figure 5-28. Removing the System Board

Reverse the above procedure when installing the system board. Make sure to replace all components of the base enclosure into their appropriate locations.

5-30 Removal and Replacement Procedures

chapter

SPECIFICATIONS

6.1 Physical and Environmental

Table 6-1

Computer

U.S. Metric

Dimensions

Height Depth Width

Weight 3.06 - 3.26 lbs 1.39 - 1.48 kg Standalone (Battery) Power Requirements

Nominal operating voltage (Li-Ion) Nominal Operating Voltage (NiMH) Maximum Operating Power Peak Operating Power

AC Adapter

Weight Power Supply (Input) Operating Voltage Operating Current

Operating Frequency Range Maximum Transient

Temperature

Operating Nonoperating

Relative Humidity (noncondensing)

Operating Nonoperating (tw = 38.7°C max)

Altitude (nonpressurized environment)

Operating Nonoperating

Shock

Operating Nonoperating

Vibration

Operating Nonoperating

0.89 in

9.0 in

10.4 in

14.2 VDC

9.6 35 W 40 W

.55 lb 90 to 260 VAC RMS

1.1 A RMS 47 to 63 Hz AC 4/50 kV

41 to 95°F

-22 to 140°F

10 to 90%,non-condensing 5 to 90%, 101.6°F/38.7°C maximum wet bulb

temperature

0 to 10,000 ft (14.7 to 10.1 psia) 0 to 30,000 ft (14.7 to 4.4 psia)

-10 G, 11 ms, half sine 60 G, 11 ms, half sine

0.25 G, 50 to 500 Hz sine, 1/2 Oct/Min sweep rate 1 G, 50 to 500 Hz sine, 1/2 Oct/Min sweep rate

2.3 cm

22.9 cm

26.4 cm

.25 kg

5 to 35°C

-30 to 60°C

0 to 3.05 km 0 to 9.14 km

NOTE: Applicable product safety standards specify thermal limits for plastic surfaces. The computer operates well within this range of temperatures.

Specifications 6-1

6.2 Display

Table 6-2

11.3-inch Color TFT SVGA Display

U.S. Metric

Dimensions

Height Width Diagonal

Mounting Internal Number of Colors 16M Contrast Ratio 125:1 Brightness 120 to 150 nit AC only/80 on battery

Pixel Resolution

Pitch Format Configuration

Backlight CCFT Character Display 80 × 25 Total Power Consumption 4.0 W Refresh 640 x 480, 800 x 600, 1024 x 768, 1280 x 1024, 1600

7.50 in

10.10 in

11.30 in

800 x 600 RGB Stripe

x 1200

19.00 cm

25.60 cm

28.70 cm

0.264 x 0.264 mm

Table 6-3

11.3-inch Color TFT XGA Display

U.S. Metric

Dimensions

Height Width Diagonal

Mounting Internal Number of Colors 16M Contrast Ratio 125:1 Brightness 120 to 150 nit AC only/80 on battery

Pixel Resolution

Pitch Format Configuration

Backlight CCFT Character Display 80 × 25 Total Power Consumption 4.0 W Refresh 640 x 480, 800 x 600, 1024 x 768, 1280 x 1024, 1600

7.50 in

10.10 in

11.30 in

1024 x 768 RGB Stripe

x 1200

19.00 cm

25.60 cm

28.70 cm

0.264 x 0.264 mm

6-2 Specifications

6.3 Hard Drive

User capacity per drive Drive type Drive height (with drive frame) Drive width

2.5-inch form factor Sector interleave Interface type Seek times (typical, including settling)

Single track Average Full stroke

Physical configuration

Cylinders Heads Sectors per track Bytes per sector

Logical configuration

Cylinders Heads Sectors per track Total customer usable data sectors Bytes per sector

Buffer size Disk rotational speed (rpm) Transfer rate

synchronous (maximum)

Table 6-4

Hard Drives

4.3 GB 6.4 GB 12.0 GB

4.3 GB 6.4 GB 12.0 GB 65 65 65 .5 inches / 12.5 mm

2.75 inches / 70 mm Yes Yes Yes 1:1 1:1 1:1 ATA-4 ATA-4 ATA-4

2.5 ms

12.0 ms

23.0 ms

5691 6 97 - 167 512

8032 15 63 8,484,385 512

512 K 512 K 512 K 4200 4200 4200

33.3 MB/second 33.3 MB/second 33.3 MB/second

.5 inches / 12.5 mm

2.75 inches / 70 mm

2.5 ms

12.0 ms

23.0 ms

9279 6 168 - 280 512

13424 15 63 12,685,680 512

.5 inches / 12.5 mm

2.75 inches / 70 mm

2.5 ms

12.0 ms

23.0 ms

15880 6 270 - 420 512

22415 16 63 23,677,353 512

Specifications 6-3

6.4 Diskette Drive

Table 6-6

Diskette Drive

Diskette Size 3.5 in (8.87 cm) Light On drive Height 0.55 in (1.40 cm) Bytes per Sector 512 Sectors per Track

High Density Low Density

Tracks per Side

High Density Low Density

Read/Write Heads 2 Access Times

Track-to-Track (high/low) Average (high/low) Settling Time Latency Average

18 (1.44 MB)/15 (1.2 MB) 9

80 (1.44 MB)/80 (1.2 MB) 80

3 ms/6 ms 94 ms/174 ms 15 ms 100 ms

6.5 Li-Ion Battery Pack

Table 6-7

Computer Battery Pack

U.S.

Height 0.9 in Width 10.47 in 26.6 cm Weight 0.48 lb 0.21 kg Cells 4 Li-Ion Energy

Voltage Amp-hour capacity Watt-hour capacity

Temperature

Operating Nonoperating

14.4 V

2.8 Ah 27Wh

41° to 95°F – 22° to 140°F

Metric

2.3 cm

5° to 35°C – 30° to 60°C

6-4 Specifications

6.6 CD-ROM Drive

Table 6-8

CD-ROM Drive

Applicable Disc CD-ROM (Mode 1, 2, and 3)

Center Hole Diameter .59 in./15 mm Disc Diameter 12 cm, 8 cm Disc Thickness 1.2 mm Track Pitch 1.6 µm

Laser

Beam Divergence Output Power Type Wave Length

Access Time

Random Full Stroke

Audio Output Level

Line Out Headphone

Cache Buffer 128 KB Data Transfer Rate

Sustained, 24X Variable Normal PIO Mode 4 (single burst) Startup time Stop time

Capacity

Mode 1, 12 cm Mode 2, 12 cm 8 cm

CD-XA ready (Mode 2, Form 1 and 2) CD-I ready (Mode 2, Form 1 and Form 2) CD-R (read only) CD Plus Photo CD (single/multisession) CD Extra Video CD CD-WO (fixed packets only) CD-Bridge

53.5 ± 1.5 degrees

0.24 ± 0.1 mw Semiconducter Laser GaA1As 780 nm ± 25 nm

< 150 ms < 300 ms

0.7 V rms none

150 KB/sec 1500 to 3600 KB/sec

16.6 MB/sec < 8.3 seconds < 4.0 seconds

550 MB 640 MB 180 MB

Specifications 6-5

6.7 DVD-ROM Drive

Table 6-9

DVD-ROM Specifications

Applicable Disc DVD-5, DVD-9, DVD-10

Center Hole Diameter .59 in./15 mm Disc Diameter 12 cm, 8 cm Disc Thickness 1.2 mm Track Pitch .74 µm

Capacity

DVD-5 DVD-9 DVD-10 Mode 1, 12 Mode 2, 12 cm 8 cm

Laser

Output Power Type Wave Length

Access Time

Random Full Stroke

Audio Output Level

Line Out Headphone

Cache Buffer 128 KB Data Transfer Rate

Sustained, 16x Sustained, 4x DVD Normal PIO Mode 4 (single burst) Startup Time Stop time

CD-ROM mode 1, mode 2 CD-Digital Audio CD-XA mode 2 (Form 1, Form 2) CD-I mode 2 (Form 1 and Form 2) CD-I Ready CD-Bridge CD-R Photo CD (single/multisession)

4.7 GB

8.5 GB

9.4 GB 550 MB 640 MB 180 MB

5 mw Semiconducter Laser GaA1As 650 nm ± 25nm (DVD-ROM mode) 795 nm ± 25 nm (CD-ROM mode)

< 150 ms < 225 ms

0.7 V rms none

150 KB/sec 5520 KB/sec

16.6 MB/sec < 15 seconds < 6 seconds

6-6 Specifications

6.8 System Interrupts

Table 6-10

System Interrupts

Hardware IRQ System Function

IRQ1 Timer Interrupt IRQ2 Cascaded IRQ3 PCMCIA IRQ4 COM1 IRQ5 Audio (default)* IRQ6 Diskette drive IRQ7 Parallel IRQ8 RTC IRQ9 Infrared IRQ10 PCMCIA IRQ12 Internal Point Stick or External Mouse IRQ13 Coprocessor (Not available to any peripheral) IRQ14 IDE Interface (Hard Disk)

Notes:

PCMCIA cards may assert IRQ3, IRQ4, IRQ5, IRQ7, IRQ9, IRQ10, IRQ11, or IRQ15. Either the infrared or the serial port may assert IRQ3 or IRQ4.

Default configuration; audio possible configurations are: IRQ5, IRQ7, IRQ9, IRQ10, or none.

6.9 System DMA

Table 6-11

System DMA

Hardware DMA System Function

DMA0 Available for audio DMA1 Entertainment Audio (Default; Alternate = DMA0, DMA3, None) DMA2 Diskette Drive DMA3 ECP Parallel Port LPT1 (Default; Alternate = DMA0, None) DMA4 DMA Controller Cascading (Not available) DMA5 Available for PC Card DMA6 Not Assigned DMA7 Not Assigned Note: PC Card controller can use DMA 1, 2, or 5.

Specifications 6-7

6.10 System I/O Addresses

Table 6-12

System I/O Addresses

I/O Address (Hex) System Function (Shipping Configuration)

000 - 00F DMA Controller no. 1 010 - 01F Unused 020 - 021 Interrupt Controller no. 1 022 - 024 Opti Chipset Configuration registers 025 - 03F Unused 02E - 02F 87334 "Super IO" configuration for CPU 040 - 043 Counter/Timer Registers 044 - 05F Unused 060 Keyboard Controller 061 Port B 062 - 063 Unused 064 Keyboard Controller 065 - 06F Unused 070 - 071 NMI Enable/Real Time Clock 072 - 07F Unused 080 - 08F DMA Page Registers 090 - 091 Unused 092 Port A 093 - 09F Unused 0A0 - 0A1 Interrupt Controller no. 2 0A2 - 0BF Unused 0C0 - 0DF DMA Controller no. 2 0E0 - 0EF Unused 0F0 - 0F1 Coprocessor Busy Clear/Reset 0F2 - 0FF Unused 100 - 16F Unused 170 - 177 Secondary Fixed Disk Controller 178 - 1EF Unused 1F0 - 1F7 Primary Fixed Disk Controller 1F8 - 200 Unused 201 Joystick (Decoded in ESS1688) 202 - 21F Unused 220 - 22F Entertainment Audio 230 - 26D Unused 278 - 27F Unused 280 - 2AB Unused 2A8 - 2E7 Unused

Continued

6-8 Specifications

Table 6-12 Continued I/O Address (Hex) System Function (Shipping Configuration)

2E8 - 2EF Reserved Serial Port 2F0 - 2F7 Unused 2F8 - 2FF Infrared port 320 - 36F Unused 378 - 37F Parallel Port (LPT1/Default) 380 - 387 Unused 388 - 38B FM Synthesizer - OPL3 38C - 3AF Unused 3B0 - 3BB VGA 3BC - 3BF Reserved (Parallel Port/No EPP Support) 3C0 - 3DF VGA 3E0 - 3E1 PC Card Controller in CPU 3E8 - 3EF SMC IrCC (Fast Infrared) Hardware and Driver (Com 3) 3F0 - 3F7 "A" Diskette Controller 3F8 - 3FF Serial Port (COM1/Default) CF8 - CFB PCI Configuration Index Register (PCIDIV0-1) CFC - CFF PCI Configuration Data Register (PCIDIV0-1)

6.11 System Memory Map

Table 6-13

System Memory Map

Size Memory Address System Function

640 K 00000000 - 0009FFFF Base Memory 128 K 000A0000 - 000BFFFF Video Memory 48 K 000C0000 - 000CBFFF Video BIOS 160 K 000C8000 - 000E7FFF Unused 64 K 000E8000 - 000FFFFF System BIOS 15 M 00100000 - 00FFFFFF Extended Memory 58 M 01000000 - 047FFFFF Super Extended Memory 58 M 04800000 - 07FFFFFF Unused 2 M 08000000 - 080FFFFF Video Memory (Direct Access) 4 G 08200000 - FFFEFFFF Unused 64 K FFFF0000 - FFFFFFFF System BIOS

Specifications 6-9

Index

Adapter

specifications, 6-1

power cord

spare part number, 3-6

air exhaust vents

illustrated, 1-11

air intake vents

illustrated, 1-11 altitude specifications, 6-1 Asset Management, 1-4 asset tag number, 1-4

battery

latches

illustrated, 1-14

light

illustrated, 1-9, 1-12

pack, 5-6

illustrated, 1-13, 3-2 removing, 5-6 replacing, 5-7 requirements, 6-1 spare part number, 3-3

specifications, 6-4 charger spare part number, 3-6

beep codes, 2-6 boot options, 2-9 brightness

display, 6-2

cables

handling, 1-2

caps lock light

illustrated, 1-8

caution

electrostatic discharge, 5-18 PC Card, inserting, 5-12 PC Card, removing, 5-11

CD-ROM drive

specifications, 6-4, 6-5 character display, 6-2 combo modem

spare part number, 3-6 Compaq

utilities, 2-6 computer

components

bottom, 1-14 front, 1-12 illustrated, 3-2 left side, 1-10 rear, 1-13 right side, 1-11 top, 1-8

disassembly reference chart,

5-2 disconnecting, 5-4 disconnecting from the

mobile expansion unit, 5-3 features, 1-1, 1-4 models, 1-2 preparing for disassembly,

5-5 serial number, 1-1 weight, 6-1 dimensions, 6-1

Computer Setup, 2-7 Configuration Management,

1-7 configuration utilities, 2-7 connector doors (upper and

lower)

illustrated, 3-4

connectors

handling, 1-2

contrast ratio

display, 6-2

control door spring (left and

right)

illustrated, 3-4

CPU base enclosure

illustrated, 3-2 spare part number, 3-3

default settings, 2-10

initialization, 2-10 ports, 2-11 power, 2-11

security, 2-11 design overview, 1-15 device

options, 2-9

security, 2-8 diagnostics, 2-7 dimensions

computer, 6-1 disassembly reference chart,

5-2 disconnecting computer, 5-4 disconnecting the computer

from the mobile expansion

unit, 5-3 diskette

drive

specifications, 6-3

drive light

illustrated, 1-8

display

assembly

dimensions, 6-2 illustrated, 3-2 installing, 5-22 power consumption, 6-2 removing, 5-22 spare part number, 3-3 specifications, 6-2

release latch

illustrated, 1-12

switch

illustrated, 1-8

docking

connector

illustrated, 1-14 pinout, A-3

DVD-ROM drive

specifications, 6-5

Index I-1

electrostatic

damage

preventing, 1-3

discharge

typical voltage levels, 1-6 energy saving, 1-7 environmental

specifications, 1-1

external diskette drive

illustrated, 3-5 spare part number, 3-5

external diskette drive cable

illustrated, 3-5 spare part number, 3-5

external monitor

connector

illustrated, 1-13

fan

illustrated, 1-14

fatal error

beep codes, 2-6 messages, 2-5

Fault Management, 1-5

alerts, 1-6

features, 1-1, 1-2

computer, 1-2

grounding

methods, 1-5

hard drive, 5-8

bay

illustrated, 1-10

bezel

illustrated, 1-14

illustrated, 3-2, 3-5 inserting, 5-9 light

illustrated, 1-8

removing, 5-8 security screw

illustrated, 1-14

spare part number, 3-3, 3-5 specifications, 6-3

hardware

updating, 2-12

headphone

jack

illustrated, 1-12 pinout, A-2

hinge rubber cap

illustrated, 3-4

humidity specifications, 6-1

I/O addresses, 6-7 Info Messenger, 2-12 infrared

port

illustrated, 1-13

initialization

default settings, 2-10

Intelligent Manageability, 1-4

Asset Management, 1-4 Configuration Management,

1-7

Fault Management, 1-5

alerts, 1-6 Security Management, 1-6 Web Agent, 1-4

internal microphone

illustrated, 1-8

inventory information, 1-5 IR lens

illustrated, 3-4

keyboard

connector

pinout, A-5 illustrated, 3-2 installing, 5-17 removing, 5-16 spare part number, 3-3

maintenance

updating system, 2-12

Maintenance & Service Guide

spare part number, 3-6

mass storage devices

illustrated, 3-5

memory

expansion, 5-18

board

illustrated, 3-2 installing, 5-19 removing, 5-18 spare part number, 3-3, 3-6

map, 6-9

messages

fatal error, 2-5 warning, 2-4

microphone

jack

illustrated, 1-12 pinout, A-1

Microsoft logo key

illustrated, 1-9

mini PCI dummy card

illustrated, 3-4

Miscellaneous Plastic Kit

components

illustrated, 3-4 contents, 3-3, 3-4 spare part number, 3-3, 3-4

Miscellaneous Screw Kit

spare part number, 3-6

miscellaneous spare part

numbers, 3-6

mobile expansion unit

features, 1-2 spare part number, 3-6

model table, 1-3 models

computer, 1-3

modem

compartment

illustrated, 1-14 connector board

illustrated, 3-2

installing, 5-27

removing, 5-26

spare part number, 3-3 cover

illustrated, 3-2, 3-4 illustrated, 3-2 PC Card

spare part number, 3-6

modem/combo card

installing, 5-14, 5-26 removing, 5-13

I-2 Index

Compaq armada m300 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Compaq Armada M300 Series of Personal Computers

DOCUMENTATION SURVEY

Notice

CONTENTS

USING THIS GUIDE

Symbols

Technician Notes

Serial Number

Locating Additional Information

Product Description 1-1

Models

Features

Intelligent Manageability

Accessing the Web Agent

Asset Management

Fault Management

Fault Management Alerts

Security Management

Configuration Management

Managing Power

Accessing Power Management

Power Management Levels

System Board

Troubleshooting

Using Computer Setup

Factory Default Settings

Before Replacing Parts

Checklist for Solving Problems

Figure 3-1. Serial Number Location

Illustrated Parts Catalog 3-1

Figure 3-3. Miscellaneous Plastic Kit Components

Figure 3-4. Mass Storage Devices

Removal and Replacement Preliminaries 4-1

Removal and Replacement Procedures 5-1

Figure 5-2. Disassembly Reference Chart

Figure 5-3. Disconnecting the Computer from the Mobile Expansion Unit

Figure 5-4. Disconnecting the Computer

SPECIFICATIONS

Diskette Drive

CD-ROM Drive

System Interrupts

System DMA

System I/O Addresses

System Memory Map

Index