The information in this guide is subject to change without notice.
COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE FOR
TECHNICAL OR EDITORIAL ERRORS OR OMISSIONS CONTAINED HEREIN;
NOR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM
THE FURNISHING, PERFORMANCE, OR USE OF THIS MATERIAL.
This guide contains information protected by copyright. No part of this guide may be
photocopied or reproduced in any form without prior written consent from Compaq
Computer Corporation.
1998 Compaq Computer Corporation.
All rights reserved. Printed in the U.S.A.
C
OMPAQ, ARMADA, and LTE are registered in the U. S. Patent and Trademark Office.
Microsoft, MS-DOS, Windows, and Windows NT are registered trademarks of
Microsoft Corporation.
The software described in this guide is furnished under a license agreement or
nondisclosure agreement. The software may be used or copied only in accordance with
the terms of the agreement.
Product names mentioned herein may be trademarks and/or registered trademarks of
their respective companies.
Maintenance and Service Guide
Compaq Armada 6500 Family of Personal Computers
First Edition October 1998
Documentation Part Number 388103-001
Compaq Spare Part Number 358999-001
DEC Spare Part Number ER-PM1CC-SR.A01
This maintenance and service guide is a troubleshooting reference that can be used
when servicing the Compaq Armada 6500 Family of Personal Computers.
Compaq Computer Corporation reserves the right to make changes to the Compaq
Armada 6500 Family of Personal Computers without notice.
Additional information is available on the Compaq Armada 6500 Family of PersonalComputers Illustrated Parts Map.
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.
This chapter introduces the Compaq Armada 6500 notebook computer. It provides a
computer system overview and describes the controls, indicators, and hot keys.
1.1 System Overview
The computer is a high-performance portable computer designed for the mobile
professional.
CPU
The computer supports the Intel Mobile 300-MHz Pentium II processor. The following
is a list of the general features of this processor:
• Dynamic Execution micro architecture.
• Multiprocessing System Bus technology.
• Multiple low-power states (AutoHALT, Stop Grant, Sleep and Deep Sleep) to
conserve power during idle times.
• 32-bit address bus.
• 64-bit data bus.
• 32KB internal write-back cache.
• Capable of executing two instructions per clock cycle using two pipelined integer
The Intel 440BX AGPset is used to implement the core functions of the system. The
440BX AGPset includes the Intel 82443BX and the Intel PIIX4.
• The Intel 82443BX chip provides the core system functions.
− Processor/host bus support: Optimized for Pentium II processor at 100MHz;
support for 66MHz.
− 3.3V core and mixed 3.3V and GTL I/O.
− Integrated DRAM controller.
− PCI bus interface.
− AGP interface.
− Advanced Power Management.
− Supporting I/O Bridge.
• The Intel PIIX4 provides the PCI to ISA bridge interface.
− Multifunction PCI-to-ISA bridge.
− Power Management Logic.
− Integrated PCI IDE Controller
− Enhanced DMA Controller.
− Interrupt Controller Based on two 82C59.
− Timers based on 82C54.
− USB
− Real-Time Clock
Memory
The system comes with 64MB of on-board SDRAM for system memory and 512KB of
L2 cache memory.
System memory can be upgraded to a total of 192MB or greater. The upgrade is
performed by installing 32MB or 64MB SDRAM SO-DIMMs. There are two slots for
additional memory. Memory can be upgraded one module at a time. Either slot can be
populated first.
• Serial infrared support – IrDa 1.1 (115Kbps and 4Mbps).
• 16550A and 16450 UARTs.
• Full Plug-and-Play support.
UMI Controller
The computer has an internal type II PCMCIA slot that is available as an UMI slot.
This feature provides a flexible method for the support of an internal modem/Ethernet
Combo card. This slot supports only Compaq approved ISA 16-bit cards. The UMI
interface is provided by the TI PCI1221 controller. This chip provides the following
features and functions:
• PCI Power Management, ACPI 1.0 and 1995 PC Card Standard compliant.
• Advanced Submicrion, Low-Power CMOS Technology.
• Pipelined architecture provides greater than 130-MB/s throughput.
This section shows the locations and provides a description of the different components
on the computer.
Front and Right Side Components
ItemComponentDescription
1Power LED
Battery Charging LED
2Lid ReleaseOne of two lid releases. Push in both releases at the same time
3SpeakerRight stereo speaker used to hear sound files and system
4MultiBaySupports CD-ROM, diskette, and optional drives (DVD-ROM,
5Microphone InInput connection for external microphone.
6Audio OutConnection for headphones or external speakers.
7Suspend/Power ButtonTurns the computer On, and Suspends or Resumes the system.
8Internal MicrophoneUsed to record voice, music, and sound files.
9Status DisplayProvides system operating status.
The green Power LED (lower) lights when the computer is on.
The amber Battery Charging LED (upper) lights when the battery
is charging.
to open the LCD panel.
sounds.
LS-120, and hard drive).
Refer to the “Controlling Power” section of this chapter for
detailed instructions on using the Suspend/Power button.
1Lid ReleaseOne of two lid releases. Push in both releases at the same time
to open the LCD panel.
2SpeakerLeft stereo speaker used to hear sound files and system sounds.
3PC Card EjectorsEjects a PC Card. Top button releases a PC Card from the top
slot; the bottom button releases a PC Card from the bottom slot.
4PC Card SlotsSupports two Type I or Type II cards or one Type III card. Zoomed
Video cards are supported in the bottom slot only.
5Keyboard ReleasesThese latches release the keyboard to allow access to the
removable hard drive.
6Removable Hard DriveLocated under the keyboard, the hard drive is easily removable
and upgradeable.
7Security LockAttach a security locking device , such as a Kensington lock, to
1External Power InInput connection for Universal AC adapter.
2Universal Serial Bus (USB) PortA USB device, such as a mouse, keyboard, or digital camera
3RJ45 Ethernet Network PortA 10 or 100BaseT Ethernet line connects to this port.
4RJ11 Modem PortAn analog telephone line connects to this port.
5Serial PortA serial device, such as a mouse, graphics tablet or scanner
6Parallel PortA parallel device, such as a printer, connects to this port.
7Video PortAn external monitor connects to this port.
8I/O Connector Cover and Notebook
Support
9Fast IR PortFast IR interface allows wireless data transfer between the
10Reset ButtonResets the computer. All unsaved data will be lost.
11External Keyboard/ Mouse PortAn external keyboard or PS/2 mouse connects to this port.
connects to this port.
connects to this port.
Covers I/O connectors. It can be flipped down to support the
1Battery ReleaseReleases the LiIon battery from the computer.
2LiIon BatteryProvides power to the computer.
3MultiBay ReleaseReleases the drive installed in the MultiBay.
4Memory DoorProvides access to computer’s memory.
5Docking Connector DoorProvides access to the computer’s docking connector. This
connector is used when connecting the computer to the
Compaq Mobile 6500 Expansion Unit or the Compaq Armada
6500 Convenience Base.
The Suspend/Power button turns the computer on and off and accesses the built-n
power saving features.
GoalAction
On/ResumePress this button to turn the system On or resume normal operation from the Suspend
SuspendPress this button to place the system in Suspend mode.
mode.
Lid SwitchClose the LCD panel to place the system into Suspend mode. If the Lid Switch option
Off (Windows 95
and Windows NT)
fn
+
Off (Windows 98)
fn
+
Power Button
Override
in System Setup is set to Desktop/CRT, closing the LCD panel will turn off the LCD
screen and prevent the computer from entering Suspend mode. This allows the
computer to function as a desktop computer (computer LCD panel closed) using an
external display, keyboard, and mouse.
Press Fn + the Suspend/Power key combination to completely shut off the computer
from any state. If Windows is up and running, it is recommended that the computer
always be turned off as outlined in the Introducing Microsoft Windows user’s guide
which was packaged with the computer.
Press Fn + Suspend/Power key combination to initiate an Off request and allow
Windows 98 to shut off the computer.
Press and hold the Suspend/Power button for four seconds to completely shut Off the
computer from any state. If Windows is up and running, it is recommended that the
computer always be turned off as outlined in the
guide which was packaged with the computer.
External power – The computer is connected to and operating from its external AC power
supply.
Standby – The computer is in Standby Mode. Any system activity such as, pressing a key on
the keyboard, touch pad, mouse, or other system activity resumes normal operation.
Hard drive/MultiBay activity – The hard drive or the drive installed in the MultiBay is being
accessed.
Caps lock – The Caps Lock function is enabled.
A
Keyboard/mouse lock – When the caps lock icon is blinking, it indicates that the
A
Blinking
keyboard/mouse lock is enabled. To resume keyboard/mouse activity, enter the User password
defined in the System Setup Program.
NUM lock – The NUM Lock function is enabled.
Video port enabled – The external monitor port is enabled.
Scroll lock – The Scroll Lock function is enabled.
Embedded numeric key pad lock – The keyboard’s embedded key pad is enabled.
The hot keys are used to set up and control the computer. These keys are activated by
holding down the Fn key and pressing the desired function key. The following table
shows each hot key sequence and describes its function:
fn
esc
F1
F2
F3
F4
F7
Function
+
Places the computer in Standby Mode.
Sets the computer’s operating mode to maximize battery life. A single beep is emitted when
the computer switches to this operating mode. If the computer is restarted, the system return
to the settings contained in the System Setup Program.
Sets the computer’s operating mode to maximize performance. Two beeps are emitted when
the computer switches to this operating mode. If the computer is restarted, the system return
to the settings contained in the System Setup Program.
Used during Power Up Self-Test (POST) to enter the System Setup Program.
Enables and disables the computer’s external display port and the LCD display. There are three
display modes:
LCD Display
LCD Display and External Monitor (simulscan)
External Display
Each time this hot key combination is pressed, the computer changes to the next display
setting.
Reserved for future use.
Enables the Keyboard/Mouse Lock. To use this feature, a user password must be set. When
Keyboard/Mouse Lock is enabled, the Enter Password prompt will appear on the screen and
the Caps Lock icon found on the LCD Status Display will blink. Enter the user password t
disable the Keyboard/Mouse Lock.
Toggles the system sound between mute and on.
1-16Overview
F8
Enables and disables the keyboard’s embedded key pad.
Toggles NUM Lock on and off. The computer offers two numeric input methods:
On-the-fly Numeric Input:
While Num Lock is enabled, press the Fn key to activate the embedded key pad for numeric
input. Release the Fn key to disable the embedded key pad and return the keyboard to norma
operation.
Intensive Numeric Input:
When Fn + F9 is used in conjunction with Fn + F8,
intensive numeric input. Disable the embedded keypad to return the keyboard to norma
operation.
Toggles Scroll Lock On and Off. The Scroll Lock feature is application dependent; consult the
software user’s guide for more information on using Scroll Lock.
This chapter provides information on how to configure the computer and its security
features using the System Setup Program. The computer is configured with default
settings selected for typical use.
If you are familiar with System Setup programs, refer to the appropriate sections in this
chapter for information on configuring or updating the computer. Otherwise, carefully
read this chapter before attempting to modify the computer’s configuration and security
settings.
Here are some instances when you might want to change the computer’s System Setup.
You might need to:
• Change the date and time
• Change the computer’s security level
• Enable/disable and configure power management
• Enable the infrared port or other devices
• Enable boot device options
2.1 Running System Setup
The System Setup Program enables you to select and store information about the
computer’s hardware configuration, boot sequence, security, and power management
features. This information is stored in the computer’s battery backed-up CMOS RAM.
System Setup Utility
To run System Setup:
1. Turn on or reboot the computer.
2. During system boot, press Fn + F3 when the Compaq logo appears. When the logo
appears you have approximately 4 seconds to enter System Setup.
There are several keyboard keys assigned to help you select menus and sub-menus,
options, and to change option values.
Legend KeyAlternate KeyFunction
F1Alt + HDisplays the General Help window.
ESCAlt + XExits the current menu and returns you to the previous screen.
← or →Selects a different menu bar item.
↑ or ↓Moves the cursor up and down between fields.
F5- (minus key)Scrolls backwards through the values of the highlighted field.
F6+ (plus key)
<space bar>
F9Sets the fields for the active menu to their default values.
F10Saves the new configuration and exits the System Setup.
Press EnterExecutes commands, selects submenus, selects fields, or displays
Scrolls forward through the values of the highlighted field.
available options.
Launching Submenus
Notice that a pointer symbol appears next to selected fields in the menu screens. For
example, see the I/O Device Configuration option in the Advanced menu. The symbol
indicates the existence of a submenu that can be launched for more advanced
configuration options. To launch a submenu:
1. Move the highlighted cell to the desired Menu Bar item and press Enter.
2. Use the legend keys to navigate around the screen and make the needed
configuration changes.
3. When you finish, press the Esc key to exit the submenu and return to the main
screen.
DisketteDisplay only fieldIndicates the computer is configured to support a
Lid SwitchSuspend/Resume*
Primary MasterDisplay only fieldDescription of hard drive.
Primary SlaveDisplay only fieldDescription of IDE device installed in the computer’s
Secondary MasterDisplay only fieldDescription of IDE device installed in Compaq Mobile 6500
System MemoryDisplay only fieldIndicates the amount of conventional memory used by the
Extended MemoryDisplay only fieldIndicates the amount of RAM, minus conventional memory
System BIOS version Display only fieldIndicates the current System BIOS version.
Keyboard BIOS
version
*Factory default setting
minute, second format.
day, year format.
Desktop/CRT
Display only fieldIndicates the current Keyboard BIOS version.
Sets the system to specified time.
Sets the system to specified date.
1.44/1.25MB 3 ½ " diskette drive.
This option allows you to configure the way the computer
responds when opening and closing the LCD display panel.
When Suspend/Resume is selected, the system enters
Suspend Mode when the lid is closed and Resumes
operation when the lid is opened. When Desktop/CRT mode
is selected, the external video port is enabled when the lid
is closed.
MultiBay.
Expansion Unit.
system.
(640KB) and high memory (360KB), installed in the system.
TV ModeSelected FormatsThis option allows you to specify the video output format
*Factory default setting
No*
Yes
SubmenuPeripheral Device Configuration: Refer to I/O Device
No*
Yes
Other
DOS*
Disabled
Enabled*
Select Yes to prevent a Plug and Play Operating System
from changing system settings.
Configuration Submenu for a description of the available
settings.
Select Yes to clear all Plug and Play configuration
information stored in Extended System Configuration Data
non-volatile RAM.
Select Other if a non-Microsoft operating system is installed
on the system. If you install new o/s software and the drive
fails, change this selection and try again. Different
operating systems require different representations of drive
geometries.
Enables/Disables IDE Failure Prediction.
supported by your country when using the video ports
provided on the Mobile 6500 Expansion Unit.
User Password IsDisplay only field.When set to Clear, a User Password has not been set.
Set Supervisor
Password
Set User Password Enter a password of up to
Password on BootDisabled*
Password on
Resume
Password on
Undock
*Factory default setting
Display only field.When set to Clear, a Supervisor Password has not been set.
Enter a password of up to
eight alphanumeric
characters. Password is not
case sensitive.
eight alphanumeric
characters. Password is not
case sensitive.
Enabled
Disabled*
Enabled
Disabled*
Enabled
This option allows you to set a Supervisor Password that
will be required to enter the System Setup. This password
can be used in place of the User Password.
IMPORTANT: Be sure to write the password down and
store it in a safe place.
This option allows you to set a User Password that will be
required during: System Setup access and System Boot,
Resume, and Undock operations if enabled.
IMPORTANT: Be sure to write the password down and
store it in a safe place.
When set to Enabled, you will be prompted for a password
on each system boot. A User Password must be set in order
to access this feature.
When set to Enabled, you will be prompted for a password
each time the system resumes operation from Suspend
Mode. A User Password must be set in order to access this
feature.
This option allows you to enable a password to prevent
unauthorized undocking of the computer from the Armada
6500 Convenience Base or Mobile 6500 Expansion Unit.
When a User Password is set and this option is set to
Enabled, the computer cannot be undocked unless the
system is powered on and the User or Supervisor Password
is supplied.
The computer provides the following levels of protection:
• User Password – Used to prevent unauthorized access to the computer and prevent
unauthorized removal of the computer from a docking option. The User Password
also allows access to a subset of the System Setup options.
• Supervisor Password – Used to prevent unauthorized access to the computer’s
System Setup.
• Password on Undock – Used to prevent unauthorized undocking of the computer
from the Armada 6500 Convenience Base or Mobile 6500 Expansion Unit. Requires
a User Password be set.
Setting/Changing a Supervisor Password
If you set a Supervisor Password, you need to enter it each time you want to access the
System Setup. Perform the following steps to set or change the Supervisor Password:
NOTE: The Supervisor Password can be used in place of the User Password.
1. Turn on the computer.
2. During system boot, press Fn + F3 when the Compaq logo appears to enter System
Setup.
3. If a Supervisor Password is set, enter the Supervisor Password when prompted.
The System Setup main menu will appear on the screen.
4. Highlight the Security menu option.
5. Highlight the Set Supervisor Password field and press Enter.
6. Type in the password and press Enter. The password can be up to eight alphanumeric
characters and is not case sensitive. Symbols and other keys are ignored.
To confirm, type in the Supervisor Password a second time and press Enter.NOTE: If a password already exists, you will be prompted to enter the old password
7. When the Notice dialog box appears notifying you that changes have been saved,
press Enter.
8. Select the Exit menu and choose Exit Saving Changes to save the new settings and
exit System Setup.
When you access System Setup, you will be prompted for the Supervisor Password.
NOTE: Passwords take effect immediately upon confirmation. The password will
remain in effect if you exit the System Setup Program without saving the new
configuration settings.
Setting/Changing a User Password
The User Password prevents unauthorized access to the computer and unauthorized
removal of the computer from a docking option. It also allows access to a subset of the
System Setup option. Perform the following steps to set or change the User Password:
1. Turn on the computer.
2. During system boot, press Fn + F3 when the Compaq logo appears to enter System
Setup.
3. If a User Password is set, enter the User Password when prompted.
4. Highlight the Security menu.
5. Highlight the Set User Password field and press Enter.
6. Type in the password and press Enter. The password can be up to eight alphanumeric
characters and is not case sensitive. Symbols and other keys are ignored.
To confirm, type in the User Password a second time and press Enter.NOTE: If a password already exists, you will be prompted to enter the old password
before a new one can be set.
7. When the Notice dialog box appears notifying you that changes have been saved,
press Enter.
8. Select the Exit menu and choose Exit Saving Changes to save the new settings and
exit System Setup.
NOTE: Passwords take effect immediately upon confirmation. The password will
remain in effect if you exit the System Setup Program without saving the new
configuration settings.
2. During system boot, press Fn + F3 when the Compaq logo appears to enter System
Setup.
3. When prompted, enter the password to be deleted.
4. Highlight the Security menu.
5. If deleting the Supervisor Password, highlight the Set Supervisor Password field
and press Enter. If deleting the User Password, highlight the Set User Password
field and press Enter.
6. When prompted enter the old password.
7. With the cursor in the “Enter new password” field, press Enter.
8. The cursor will move to the “Re-enter new password” field. Press Enter.
9. When the Notice dialog box appears notifying you that changes have been saved,
press Enter.
10. Select the Exit menu and choose Exit Saving Changes to save the new settings and
exit System Setup.
Password on Undock
Setting a User Password and enabling Password on Undock prevents unauthorized
undocking of the computer from the Compaq Mobile 6500 Expansion Unit and/or the
Compaq Armada 6500 Convenience Base. When a request is made to undock the
computer, you will be prompted for a password. Enter either the Supervisor or User
Password to complete the undock request and undock the computer.
The computer is factory-configured with preset power management values. If you are
not an advanced user, start by using the default (factory-configured) power
management settings. If you find that the factory settings do not fit your specific needs,
enter the System Setup Program and make the needed changes.
FeatureSettingsComments
Power SavingsDisabled
Customized*
Maximum Power Savings
Maximum Performance
Standby TimeoutOff
Auto Suspend
Timeout
Suspend ModeSuspend to RAM*
Hard Disk TimeoutDisabled
Video TimeoutDisabled
Cooling ModePassive→Active*
Selected times
Off
Selected times
Save to Disk
Selected times
Selected times
Active→Passive
Disables all power management features.
Allows you to customize the power management features.
Use Maximum Power Savings when you want to maximize
the time between battery charges.
Use Maximum Performance when you want to maximize the
performance of the computer while retaining some power
savings for extending the life of the battery.
This option allows you to specify a period of time the
system must be inactive before the system is placed in
Standby mode.
Standby mode shuts down power to the LCD and backlight,
hard drive, diskette drive, and external devices.
NOTE: The selected period for inactivity is measured from
the last monitored system activity. A keystroke, mouse
movement, or hard disk activity, for example, will reset the
timer.
This option allows you to specify a period of time the
system is in Standby before entering Suspend.
Suspend is similar to Standby except all devices are
powered down (with the exception of system memory, if
Suspend Mode is set to Suspend to RAM). To resume
operation, press the Suspend/Power button.
This option allows you select the type of Suspend Mode the
system will enter when the Auto Suspend Timeout timer
expires. If you choose Save to Disk, the system will save all
application settings, data and memory to the hard drive,
then completely power off the system. If you choose
Suspend to RAM, the system will save all application
settings and data to system memory, then power off all
other devices (except system memory).
This option allows you to specify a period of time the hard
disk drive must be inactive before it spins down.
This option allows you to specify a period of time the
system must be inactive before the LCD backlight is turned
off.
This option determines the order in which the cooling
systems are triggered as the system temperature increases.
Passive→Active throttles down the CPU first, then turns on
the cooling fan. Active→Passive turns on the cooling fan
first, then throttles down the CPU.
When this option is set to On and Suspend Mode is set to
Suspend to RAM, the system wakes up at the time defined
in Resume Time. Resume on Time will not work when
the Suspend Mode is set to Save to Disk.
This option sets the time that the system will wake up from
Suspend. Resume On Time must be set to On in order for
the system to wake at the defined time.
This option sets the date that the system will wake up from
Suspend. Resume On Time must be set to On in order for
the system to wake on the defined date.
2.7 Boot Menu
Enter the Boot Menu to change the order in which devices will be searched for an
operating system.
FeatureSettingsComments
Summary ScreenDisabled*
Enabled
QuickBoot ModeDisabled
Enabled*
Boot Device Priority SubmenuThis option allows you to define the drive boot sequence. To
*Factory default setting
This option allows you to view a system configuration
screen during bootup.
When set to Enabled, this option reduces the time required
to complete POST by allowing the system to test only the
major system components.
change the order, move the highlighted cell to the field to
be moved. Press
Press F6 to move the field to a higher priority.
Enter the Exit Menu to save changes, set factory defaults or exit the System Setup
Program.
FeatureActionComments
Exit Saving Changes Press Enter.Exit System Setup and save your changes to CMOS.
Exit Discarding
Changes
Load Setup Defaults Press Enter.Load default values for all System Setup items.
Discard ChangesPress Enter.Load previous values from CMOS for all Setup items.
Save Custom
Defaults
Load Custom
Defaults
Save ChangesPress Enter.Save Setup data to CMOS, but not exit.
Press Enter.Exit System Setup without saving data to CMOS.
Press Enter.Save current settings as custom defaults.
Press Enter.Load previously saved values to CMOS.
2.9 Restoring the Flash BIOS
To restore a corrupted Flash BIOS a Crisis Recovery diskette is required.
To restore the Flash BIOS:
1. Turn the computer off by pressing Fn + Standby/Resume button.
2. Make sure the diskette drive is installed in the computer MultiBay.
3. Enable Crisis Recovery mode by placing a jumper across resistor R744. This resistor
is located in the expansion memory compartment on the bottom of the unit. To
locate the resistor:
a) Place the unit in front of you with the bottom up and the battery closest to you.
b) Remove the cover on the memory compartment.
c) The resistor is located in the lower left corner of the memory compartment.
4. Place the Crisis Recovery disk in the drive.
5. Turn on the system. When the BIOS is restored, turn off the system by pressing
Fn + Suspend/Power button.
This chapter provides a systematic method of isolating problems with the Compaq
Armada 6500 notebook computer. A basic understanding of DOS-based computer
systems as well as a knowledge of standard troubleshooting procedures is assumed.
This manual is written under the assumption the problems are related to the computer.
Improper use of the system and application software problems are excluded in this
chapter.
The system BIOS power on self-tests (POST) are integral to the system and detect
certain errors with the system board. They use a series of beep codes to identify certain
system board problems.
The troubleshooting procedures, when followed step by step, can help isolate system
problems.
3.1 Troubleshooting Tips
In general, troubleshooting involves an organized system of approach to problem
solving. Try to isolate the problem and identify the defective device (hardware) or
improper setting (software). When a problem is encountered, perform a thorough visual
inspection of the computer.
• If none of the indicators are lit and the hard drive cannot be heard spinning, the
computer is probably not receiving power.
• Make sure the power cord is plugged in, and the AC adapter is securely connected.
The LEDs on the AC adapter and the system should be on when connected to a
working AC source.
• If a power strip or surge protector is being used, make sure these devices are
turned on.
• When powering the system by battery, make sure the battery is charged.
Often problems are caused by improperly connected cables.
• If a mouse or keyboard is being used, make sure they are properly connected to their
respective ports. Make sure none of the connector pins are bent or broken.
• Check all cables connected to the computer. If any are cut, frayed, or damaged in
any way, replace them right away. Never use a damaged cable. A damaged cable is
not only a fire hazard, it may also cause a short circuit, resulting in irreparable
damage to the computer.
• Check all internal connections to ensure they are secure. Problems often occur
Verify all test equipment works before using it to test a malfunctioning component.
Verify a component is the only malfunctioning part of the computer by replacing the
malfunctioning component with a properly functioning one, and then try to run the
system. For example, if a diskette drive has been tested in a test computer and has been
found to be bad, test a working diskette drive in the malfunctioning diskette drive’s
computer to be sure another component (such as the diskette drive controller) is not bad
as well.
As with assembly and disassembly, make sure to have adequate lighting, the right tools,
and a stable clean working environment.
The following examples provide useful tips and information that will help isolate and
solve some of the more common problems that may be encountered.
System Start Failure
When the computer is turned on, the system hangs before completing or starting the
POST (power on self-test). A power supply failure, POST failure, or boot-up failure
can result in a system start failure. Reset the system by pressing the reset button located
on the rear of the computer next to the PS/2 connector (Figure 1-3) and restart the
system.
The computer’s power is on. The hard drive is functioning
correctly. When an attempt is made to access the diskette
drive, one of the following conditions occurs:
• The diskette drive cannot be read from.
• The diskette drive cannot be written to.
• The diskette drive motor cannot be heard spinning, and
the LED indicator light is not on.
CD-ROM Failure
• Check the BIOS settings for the diskette drive.
Refer to Chapter 2.
• Make sure the CD-ROM/diskette drive module is
properly seated.
• Make sure only one diskette drive is installed in a
system with a Mobile 6500 Expansion Unit
attached. The system supports only one diskette
drive.
• Try a different diskette in the drive. Make sure
the diskette is not write protected.
• Clean the diskette drive’s heads.
• Change the diskette drive module and test again.
• If the drive still does not work, replace the main
board.
ProblemTroubleshooting Procedure
The computer’s power is on. The hard drive is functioning
correctly. When an attempt is made to access the
CD-ROM drive, one of the following conditions occurs:
• The CD-ROM drive cannot be read from.
• The CD-ROM drive motor cannot be heard spinning, and
the LED indicator light is not on.
• Check the BIOS settings for the CD-ROM drive.
Refer to Chapter 2.
• Make sure the CD-ROM drive is properly seated.
• Make sure only one CD-ROM drive is installed in
a system with a Mobile 6500 Expansion Unit
attached.
• Switch to a different CD-ROM drive and try again.
• Clean the CD-ROM’s lens.
• Change the CD-ROM drive and test again.
• If the CD-ROM drive still does not work, replace
The computer’s AC power works. When trying to use
battery power, the computer does not operate. However,
when the AC Adapter is connected, the battery charge
indicator flashes.
Touchpad Failure
ProblemTroubleshooting Procedure
The touchpad does not work.• Check the touchpad settings in the operating
• Make sure the battery contacts are in good
condition.
• Make sure the battery terminals are clean. If
necessary, clean the terminals with contact
cleaner.
• Change the battery and try again.
• Make sure the AC power supply (the AC adapter
and AC adapter cord) are working. If they are not
supplying the correct voltage, it could damage
the system.
system’s control panel.
• Make sure the UMI cable connection to the
Motherboard is properly seated. This connector
is located under the keyboard deck behind the
touchpad.
NOTE: If both the touchpad and modem/network
do not work, this cable is most likely not
connected.
• Make sure the UMI cable is properly connected to
the Touchpad connector.
Internal Modem/Network (UMI) Failure
ProblemTroubleshooting Procedure
The internal modem/network (if installed) does not work. • Make sure the Modem/Ethernet Combo Card,
3-8Troubleshooting
UMI adapter are properly seated.
• Make sure the modem/network software is
properly configured.
• Verify the modem/network port is enabled. This
is done using the System icon in the Control
Panel of the operating system.
• Make sure the UMI cable is properly connected to
the Motherboard. This connector is located under
the Keyboard Deck behind the Touchpad.
NOTE: If both the Touchpad and
modem/network do not work, this cable is most
likely not connected.
No sound from external speakers connected to external
audio port.
• Make sure the connections are properly seated.
• Make sure power is applied to the speakers (if
necessary).
• Replace the DC/DC Converter board.
3.2 Check Points and Error Messages
At the beginning of each POST routine, the BIOS outputs the test point error code to
I/O address 80h. Use this code during troubleshooting to establish at what point the
system failed and what routine was being performed.
If the BIOS detects a terminal error condition, it halts POST after:
• Issuing a terminal error beep code and
• Attempting to display the error code on upper left corner of the screen and on the
port 80h LED display
If the system hangs before the BIOS can process the error, the code displayed at port
80h is that of the last test performed. In this case, the screen does not display the error
code.
Phoenix BIOS Test Points
The following is a list of the checkpoint codes written at the start of each test and the
beep codes issued for terminal errors:
CodeBeepsPOST Routine Description
02hVerify Real Mode.
03hDisable Non-Maskable Interrupt (NMI).
04hGet CPU type.
06hInitialize system hardware.
08hInitialize chipset with Initial POST Values.
09hSet IN POST flag.
0AhInitialize CPU registers
0BhEnable CPU cache.
0ChInitialize caches to initial POST values.
0EhInitialize I/O component.
0FhEnable the local bus IDE.
10hInitialize Power Management.
11hLoad alternate registers with initial POST values.
12hRestore CPU control word during warm boot.
13hInitialize PCI Bus Mastering devices.
14hInitialize keyboard controller.
16h1-2-2-3BIOS ROM checksum.
17hInitialize cache before memory autosize.
18h8254 timer initialization.
1Ah8237 DMA controller initialization.
1ChReset Programmable Interrupt Controller.
20h1-3-1-1Test DRAM refresh.
22h1-3-1-3Test 8742 Keyboard Controller.
24hSet ES segment register to 4 GB
26hEnable A20 line.
28hAutosize DRAM.
29hInitialize POST Memory Manager.
2AhClear 512KB base RAM.
2Ch1-3-4-1RAM failure on address line
2Eh1-3-4-3RAM failure on data bits
2FhEnable cache before system BIOS shadow.
30h1-4-1-1RAM failure on data bits
32hTest CPU bus-clock frequency.
33hInitialize Phoenix Dispatch Manager.
36hWarm start shut down.
38hShadow system BIOS ROM.
3AhAutosize cache.
3ChAdvanced configuration of chipset registers.
3DhLoad alternate registers with CMOS values.
42hInitialize interrupt vectors.
45hPOST device initialization.
46h2-1-2-3Check ROM copyright notice.
48hCheck video configuration against CMOS.
49hInitialize PCI bus and devices.
4AhInitialize all video adapters in system.
4BhQuietBoot start (optional).
4ChShadow video BIOS ROM.
4EhDisplay copyright notice.
50hDisplay CPU type and speed.
51hInitialize EISA board.
52hTest keyboard.
54hSet key click if enabled.
58h2-2-3-1Test for unexpected interrupts.
59hInitialize POST display service.
5AhDisplay prompt "Press F2 to enter SETUP".
5BhDisable CPU cache.
5ChTest RAM between 512K and 640K.
60hTest extended memory.
62hTest extended memory address lines.
64hJump to UserPatch1.
66hConfigure advanced cache registers.
67hInitialize Multi Processor APIC
68hEnable external and CPU caches.
69hSetup System Management Mode (SMM) area.
6AhDisplay external L2 cache size.
6BhLoad custom defaults (optional).
6ChDisplay shadow-area message.
6EhDisplay possible high address for UMB recovery.
70hDisplay error messages.
72hCheck for configuration errors.
76hCheck for keyboard errors.
7ChSet up hardware interrupt vectors.
7EhInitialize coprocessor if present.
80hDisable onboard Super I/O ports and IRQs.
81hLate POST device initialization.
82hDetect and install external RS232 ports.
83hConfigure non-MCD IDE controllers.
84hDetect and install external parallel ports.
85hInitialize PC-compatible PnP ISA devices.
86hRe-initialize onboard I/O ports.
87hConfigure Motherboard Configurable Devices (optional).
88hInitialize BIOS Data Area.
89hEnable Non-Maskable Interrupts (NMIs).
8AhInitialize Extended BIOS Data Area.
8BhTest and initialize PS/2 mouse.
8ChInitialize diskette drive controller.
8FhDetermine number of ATA drives (optional).
90hInitialize hard-disk controllers.
91hInitialize local-bus hard-disk controllers.
92hJump to UserPatch2.
93hBuild MPTABLE for multi-processor boards.
95hInstall CD ROM for boot.
96hClear huge ES segment register.
97hFixup Multi Processor table.
98h1-2Search for option ROMs. One long, two short beeps on checksum failure.
99hCheck for SMART Drive (optional).
9AhShadow option ROMs.
9ChSet up Power Management.
9DhInitialize Security Engine (optional).
9EhEnable hardware interrupts.
9FhDetermine number of ATA and SCSI drives.
A0hSet time of day.
A2hCheck key lock.
A4hInitialize typematic rate.
A8hErase F2 prompt.
AAhScan for F2 key stroke.
AChEnter SETUP.
AEhClear Boot flag..
B0hCheck for errors.
B2hPOST done - prepare to boot operating system.
B4h1One short beep before boot.
B5hTerminate QuickBoot (optional).
B6hCheck password (optional).
B9hPrepare Boot.
BAhInitialize DMI parameters.
BBhInitialize PnP Option ROMs.
BChClear parity checkers.
BDhDisplay Multi-Boot menu.
BEhClear screen (optional).
BFhCheck virus and backup reminders.
C0hTry to boot with INT 19.
C1hInitialize the Post Error Manager (PEM).
C2hInitialize error logging.
C3hInitialize error display function.
C4hInitialize system error handler.
C5hPnP dual CMOS (optional).
C6hInitialize computer docking (optional).
C7hInitialize computer docking late.
C8hForce check (optional).
C9hExtended Checksum (optional).
D2hUnknown interrupt
* If the BIOS detects error 2C, 2E, or 30 (base 512K RAM error), it displays an
additional word-bitmap (XXXX) indicating the address line or bits that failed. For
example, “2C 0002” means data bits 12 and 5 (bits 12 and 5 set) have failed in the
lower 16 bits. The BIOS also sends the bitmap to the port-80 LED display. It first
displays the check point code, followed by a delay, the high-order byte, another delay,
and then the low-order byte of the error. It repeats this sequence continuously.
The following is an alphabetic list of error and status messages which the Phoenix
BIOS can generate and an explanation of each message. Many of the messages below
refer to the built-in Setup program.
MessageDescription
nnnn Cache SRAM Passednnnn is the amount of system cache in kilobytes successfully tested.
Diskette drive A errorDrive A: is present but fails the BIOS POST diskette tests. Make sure the drive
Failed at offset: nnnn
nnnn Extended RAM Passednnnn is the amount of RAM in kilobytes successfully tested.
Failing Bits: nnnnThe hex number nnnn is a map of the bits at the RAM address (in System,
Fixed Disk 0 Failure or Fixed
Disk 1 Failure or Fixed Dis
Controller Failur
Incorrect Drive A type run
SETUP
Invalid NVRAM media typeProblem with NVRAM access.
Keyboard controller errorThe keyboard controller failed test. Replace keyboard or controller.
Keyboard errorKeyboard not working.
Keyboard error nnBIOS discovered a stuck key and displays the scan code for the stuck key.
Keyboard locked
Unlock key switch
Monitor type does not match
CMOS
is defined with the proper diskette type in Setup and the diskette drive i
attached properly.
Extended memory not working or not configured properly.
Extended, or Shadow memory) which failed the memory test. Each 1 (one) i
the map indicates a failed bit.
Fixed disk is not working or not configured properly. Check to see if fixed disk
is attached properly. Run Setup to ensure the fixed disk type is correctl
identified.
Type of diskette drive A: not correctly identified in SETUP.
Unlock the system to proceed.
Run SETUP Monitor type not correctly identified in Setup.
Operating System not foundOperating system cannot be located on either drive A: or drive C:. Enter Setup
Parity Check 1 nnnn Parity
error found in the system bus
Parity Check 2 nnnn Parity
error found in the I/O bus
Press <F1> to resume,
<F2> to Setup
Previous boot incomplete.Default configuration used.
Previous POST did not
complete successfully
Real time clock errorReal time clock fails BIOS test. May require board repair.
Shadow RAM Failed at
offset: nnnn
nnnn Shadow RAM PassedWhere nnnn is the amount of shadow RAM in kilobytes successfully tested.
System battery is dead -
Replace and run SETUP
System cache errorCache disable RAM cache failed the BIOS test. BIOS disabled the cache.
System CMOS checksum bad -
run SETUP
System RAM Failed at
offset: nnnn
nnnn System RAM Passednnnn is the amount of system RAM in kilobytes successfully tested.
System timer errorThe timer test failed. Requires repair of system board.
UMB upper limit segment
address: nnnn
Video BIOS shadowedVideo BIOS successfully copied to shadow RAM.
and see if fixed disk and drive A: are properly identified.
BIOS attempts to locate the address but failed and displays it on the screen.
BIOS attempts to locate the address but failed and displays it on the screen.
Display after any recoverable error message: Press <F1> to start the boot
process or <F2> to enter Setup and change any settings. <F2> Press <F2>
to enter Setup Optional message displayed during POST.
POST loads default values and offers to run Setup. If the failure was caused by
incorrect values and they are not corrected, the next boot will likely fail
Shadow RAM failed at offset nnnn of the 64k block at which the error was
detected.
The CMOS clock battery indicator shows the battery is dead. Replace the
battery and run Setup to reconfigure the system.
System CMOS has been corrupted or modified incorrectly, perhaps by an
application program that changes data stored in CMOS. Run Setup and
reconfigure the system.
System RAM failed at offset nnnn of the 64k blo9ck at which the error was
detected.
Displays the address of the upper limit of Upper Memory Blocks, indicating
released segments of the BIOS which may be reclaimed by a virtual memor
manager.
This chapter provides detailed procedures for replacing the Compaq Armada 6500
notebook computer Field Replaceable Units (FRUs). Unless otherwise noted the
replacement procedures for the FRUs are the reverse of the removal procedures.
WARNING: Static electricity collects on non-conductors such as paper, cloth, or plastic.
!
A static discharge can be damaging even though it is not seen or felt. To prevent damage
to circuit boards and/or components:
• Before touching any circuit board or component, touch the metal frame of the
workstation to discharge any static electricity
• Keep circuit boards and components away from non-conductors.
4.2 Required Tools
The following tools are required to remove and replace the computer FRUs:
• #0 and #1 Phillips-head Screwdrivers
• 3/16 inch Nut Driver
• Tweezers
4.3 Service Options
This section contains a list of service options with part numbers available for the
computer.
359009-00122-15181-016871B9976A3SPS-BD System Mod. W/300MHz
*
not illustrated
Compaq Spare
Part Number
358976-00130-50408-016708BA0001AAC Adapter, without Power Cord
358936-00117-04105-016410BC11004Power Cord, US/American
358936-02117-04105-02Power Cord, Central European
358936-03117-04105-03Power Cord, UK/British
358936-29217-04105-066410BE10701Power Cord, Japanese
358936-01117-04105-076410BK20301Power Cord, Australian/New
358936-AF117-04105-09Power Cord, Singapore
*
not illustrated
DEC FRU
VendorDescription
Part Number
30-50352-01011N805233ACPU PenII-300-MHz Mini Cartridge
30-50353-013301BZ9014AAssy, CPU Cover w/screws (4)
90-11497-011SZZBZ3002BScrew, CPU/Main (4)
4. Remove the internal Modem/Ethernet Combo Card. Press the eject button using the
screw driver or similar device (Figure 4-10, step 1), the internal card will eject
(Figure 4-10, step 2).
5. Remove the Modem/Ethernet Combo Card.
Figure 4-10. Removing the Internal Modem/Ethernet Combo Card
5. Remove the four Philips-head hinge screws located on the top of the hinges
(Figure 4-16).
6. Disconnect the IR/Reset cable to allow easy access to the power cable connector.
7. Disconnect the panel power cable from its main board connector.
8. Disconnect the panel signal cable by removing the screw securing the cable to the
thermal plate and sliding the cable out of its connector.
Figure 4-16. Removing the LCD Assembly
9. Lift the panel away from the base just enough to free the hinges and allow the
panel to lay behind the computer. In may be helpful to place the battery under the
panel to reduce stress on the cables.
10. Carefully route the free end of the power cable through the housing until its free.
11. Carefully route the free end of the signal cable through the housing until it is free.
4.8 CPU Base Enclosure with System Board Replacement
The Armada 6500 series computer CPU Base Enclosure with System Board is supplied
for field replacement by an Authorized Service Provider. This spare part assembly
minimizes field repair time for a customers unit when symptoms are diagnosed to the
system board or other components inside. Refer to the Armada 6500 Maintenance and
Service Guide for complete service information.
NOTE: Sufficient ESD protection, a clean work surface, a small flat head screw driver,
a plastic wedge hand tool, and a #1 Phillips head screw driver are needed. There are
several different screw sizes and shapes encountered during this disassembly; make
sure to label and separate them for correct reinstallation
1. There should be a paper label supplied on the bottom of the replacement CPU Base
Enclosure with System Board. Enter all appropriate information from the unit. This
information is necessary for warranty, service, and tracking purposes.
2. Perform the level of disassembly of the customer unit according to the enclosed
instructions.
3. Attach a failure tag or note, to the defective CPU Base Enclosure with System
Board, identifying the failure mode and return it as directed, complete and
packaged well.
.
Disassembly Instruction
CAUTION: It is not recommended to disassemble a failed unit until the replacement “CPU
Base Enclosure with System Board” is received and available for immediate use. Part
removal and installation should be performed in a single operation to ensure all the
correct size and shapes of the various screws are used.
The following parts, along with all hold down screws, will be removed and retained for
use on the replacement enclosure.
• Primary battery• UMI cover
• Diskette, CD-ROM, or DVD-ROM drive, which ever is
The enclosure that is returned must contain have all the other parts not removed in this
section. Failure to comply may result in the enclosure being returned with an additional
charge for shipping. Please follow these directions to minimize customer unit
downtime and maximize customer satisfaction.
1. Make sure the unit is fully powered down. Remove the primary battery.
2. Remove the diskette drive, DVD-ROM drive, or CDROM drive assembly,
whichever is installed.
3. Slide the keyboard latches. Raise the keyboard toward the display.
4. Disconnect the keyboard cables by unlocking the connectors on the system board
and carefully pulling the cables out of the connectors.
5. Remove the keyboard.
6. Slide the hard drive assembly latch handle to the unlocked position. Pull the ribbon
handle to remove the hard drive from the base.
7. With the unit closed, remove the two display hinge covers carefully with a plastic
wedge shaped tool.
8. From the back of the unit, remove the 4 screws attaching the display hinges to the
base. Open the unit and remove 4 more screws connecting the display hinges to the
base.
9. Remove the small grounding screw inside the right side of the unit that holds down
the display cable. Disconnect the other display cables from the system board.
Remove the display assembly. Carefully bend (but do not damage) and slide the
cables through the openings in the chassis.
10. Remove the screws securing the CPU heat sink plate. Remove the screws securing
the CPU assembly. Lift the CPU assembly straight up by prying up with a plastic
tool from the cutout on the right side. Protect the CPU connector pins until it is
installed in the replacement enclosure.
11. Remove the “L” shaped UMI cover located on the right side of the unit with the
plastic tool.
12. Unplug the “L” shaped UMI adapter connecting the Modem/ENet card to the base
unit.
13. Press the eject button to remove the UMI PC card. Check for cards in the two other
PC Card slots and for memory daughter cards on the system board. Remove any that
are installed.
1. Install the parts removed from the defective computer onto the replacement CPU
Base Enclosure with System Board.
2. Enter all required information on the service tag attached to the bottom of the
replacement CPU Base Enclosure with System Board. Obtain all original
information from the service tag on the unit being repaired. Figure 4-17 shows a
service tag.
3. Remove the protective paper from the clear covering of the service tag and seal
the tag.
This part was exchange d by a Compaq Authorized
Service Provider per the information f illed in below.
Original
Serial No.:
Original
Model No.:
Call log # /
Part Order #
Date:
36-49198-02
Figure 4-17.
CPU Base Enclosure with System Board Identification Label (36-49198-02)
Size9.7" x 12" x 1.4"
Weight (no FDD or CD-ROM in bay)5.96 lbs. (approximate)
Weight (FDD in bay)6.27 lbs. (approximate)
Weight (CD-ROM in bay)6.46 lbs. (approximate)
Operating SystemWindows 95, Windows 98 or Windows NT 4.0
Warranty3 years
GTX6300MD - 6GB - 14.1”
Environment
ParameterValue
Temperature
Operating
Non-operating
Relative humidity
Operating
Non-operating
Altitude
Operating
Non-operating
Shock
Operating
Non-operating
32 to 95 degrees F (0 to 35 degrees C)
32 to 95 degrees F (0 to 35 degrees C)
20% to 80%, non-condensing
20% to 80%, non-condensing
Sea level to 8,000 ft (3,040m
Sea level to 40,000 ft (12,160m
0h to 9FFFFh640KB System MemorySystem Memory Space
A0000h to BFFFFh128K Video MemoryGraphics Display Memory Buffer
C0000h to CAFFFh44KB Video BIOS ROMShadow BIOS of VGA
CC000h to CD7FFh6K CD Boot ROMCD Boot
CD800h to CDFFFh2K EPP BiosEnhance Parallel Port
E8000h to FFFFFh96KB PCI, PnP, and System ROMBIOS of System
100000h to 8FFFFFFhAdditional Memory SpaceExtended Memory Space, Size from
DMA Channel Assignments
ChannelControllerFunction
01Parallel Port ECP (if enabled)
11Sound
21Diskette controller
31Serial IR (if enabled)
42Cascade DMA
52Not used
62Not used
72Not used
0System Timer
1Keyboard
2Cascade
3UMI/IrDA defaults to COM2, but is disabled
4Serial Port COM1
5Audio
6Floppy Disk Controller
7Parallel Port LPT1
8Real Time Clock
9ACPI
10PCI CardBus Controller
11USB and Video
12Track Pad, PS/2 Mouse
13Numeric Data Processor
14Primary IDE-Hard Disk Controller
15Secondary IDE-Mobile 6500 Expansion Unit