HP Pavilion ze2300 Notebook PC
Compaq Presario M2300 Notebook PC
Document Part Number: 383111-002
November 2005
This guide is a troubleshooting reference used for maintaining
and servicing the computer. It provides comprehensive
information on identifying computer features, components, and
spare parts; troubleshooting computer problems; and performing
computer disassembly procedures.
Microsoft and Windows are U.S. registered trademarks of Microsoft
Corporation. Intel, Pentium, Celeron, and Centrino are trademarks or
registered trademarks of Intel Corporation or its subsidiaries in the United
States and other countries. Bluetooth is a trademark owned by its proprietor
and used by Hewlett-Packard Company under license.
The information contained herein is subject to change without notice. The
only warranties for HP products and services are set forth in the express
warranty statements accompanying such products and services. Nothing
herein should be construed as constituting an additional warranty. HP shall
not be liable for technical or editorial errors or omissions contained herein.
Maintenance and Service Guide
HP Pavilion ze2300 Notebook PC
Compaq Presario M2300 Notebook PC
Second Edition November 2005
First Edition February 2005
Document Part Number: 383111-002
The HP Pavilion ze2300 Notebook PC 1 and the
Compaq Presario M2300 Notebook PC 2 offer advanced
modularity, Intel® Mobile Pentium® M and Celeron® M
processors, and extensive multimedia support.
1
HP Pavilion ze2300 and Compaq Presario M2300
Maintenance and Service Guide1–1
Product Description
1.1Features
Numerous references are made throughout this Maintenance and
✎
Service Guide to “full-featured” and “defeatured” computer
models. A model is considered to be full-featured if it has
3 Universal Serial Bus ports and the following components:
■ S-Video-out jack
■ Expansion port 2
■ 6-in-1 Digital Media Slot or 6-in-1 Memory Reader
A computer model is considered to be defeatured if it has only
2 Universal Serial Bus ports and none of the components in the
preceding list.
■ The following processors are available, varying by
computer model:
❏ Intel Pentium M 750 (1.80-GHz) with 400-MHz
front-side bus (FSB)
❏ Intel Pentium M 740 (1.70-GHz) with 400-MHz FSB
❏ Intel Pentium M 735A (1.70-GHz) with 400-MHz FSB
❏ Intel Pentium M 730 (1.60-GHz) with 400-MHz FSB
❏ Intel Pentium M 725A (1.60-GHz) with 400-MHz FSB
❏ Intel Celeron M 380 (1.70-GHz) with 400-MHz FSB
❏ Intel Celeron M 370 (1.50-GHz) with 400-MHz FSB
❏ Intel Celeron M 360 (1.40-GHz) with 400-MHz FSB
❏ Intel Celeron M 350 (1.30-GHz) with 400-MHz FSB
Full-featured models feature both Intel Pentium M and
✎
Celeron M processors. Defeatured models feature only
Celeron M processors.
1–2Maintenance and Service Guide
Product Description
■ 15.0-inch XGA (1024 × 768) TFT display with over
16.7 million colors
■ 80-, 60-, or 40-GB high-capacity hard drive, varying by
computer model
■ 256-MB DDR2 synchronous DRAM (SDRAM) at 400 MHz,
expandable to 1.0 GB
■ Microsoft® Windows® XP Home Edition or Windows XP
Professional, varying by computer model
■ Full-size Windows keyboard with embedded numeric keypad
■ TouchPad pointing device with dedicated vertical scroll
region
■ Integrated 10Base-T/100 Base-TX Ethernet local area
network (LAN) network interface card (NIC) with RJ-45 jack
■ Integrated high-speed 56K modem with RJ-11 jack
■ Integrated wireless support for Mini PCI IEEE 802.11b and
802.11b/g WLAN device
■ Support for one Type II PC Card slot, with support for both
32-bit (CardBus) and 16-bit PC Cards
■ External 65-watt AC adapter with 3-wire power cord
■ 6-cell or 12-cell Li-Ion battery pack
■ Stereo speakers with volume up and down buttons
■ Support for the following optical drives:
❏ 8X DVD-ROM drive
❏ 24X DVD/CD-RW Combo Drive
❏ 8X DVD±RW/R and CD-RW Combo Dual Layer Drive
Maintenance and Service Guide1–3
Product Description
■ Connectors:
❏ External monitor port
❏ Universal Serial Bus (USB) v. 2.0 (up to 3 ports)
❏ RJ-11 (modem) jack
❏ RJ-45 (network) jack
❏ Audio-out (headphone) jack
❏ Audio-in (microphone) jack
❏ Power
❏ IEEE 1394 digital port
❏ S-Video-out jack (select models only)
❏ Expansion port 2 (select models only)
❏ 6-in-1 Digital Media Slot (select models only)
❏ 6-in-1 Memory Reader (select models only)
1.2 Resetting the Computer
If the computer you are servicing has an unknown password,
follow these steps to clear the password. These steps also
clear CMOS:
1. Prepare the computer for disassembly (refer to Section 5.3,
“Preparing the Computer for Disassembly,” for more
information).
2. Remove the real-time clock (RTC) battery (refer to
Section 5.14, “RTC Battery,” for more information).
1–4Maintenance and Service Guide
3. Wait approximately 5 minutes.
4. Replace the RTC battery and reassemble the computer.
5. Connect AC power to the computer. Do not reinsert any
battery packs at this time.
6. Turn on the computer.
All passwords and all CMOS settings have been cleared.
1.3Power Management
The computer comes with power management features that
extend battery operating time and conserve power. The
computer supports the following power management features:
■ Standby
■ Hibernation
■ Setting customization by the user
■ Hotkeys for setting the level of performance
■ Battery calibration
Product Description
■ Lid switch standby/resume
■ Power button
■ Advanced Configuration and Power Management (ACPM)
compliance
Maintenance and Service Guide1–5
Product Description
1.4 External Components
The external components on the front of the HP Pavilion ze2300
computer are shown below and described in Table 1-1.
Front Components, HP Pavilion ze2300
1–6Maintenance and Service Guide
Tabl e 1-1
Front Components
HP Pavilion ze2300
ItemComponentFunction
1Speakers (2)Produce stereo sound.
Product Description
2Wireless light (select
models only)
3Power light■ On: Computer is turned on.
4IDE (Integrated Drive
Electronics) drive light
5Battery light■ On: The battery pack is charging.
6Display release buttonOpens the computer.
7Audio-in
(microphone) jack
8Audio-out
(headphone) jack
On: One or more optional internal wireless
devices, such as a WLAN and/or a
Bluetooth® module (select models only),
are turned on.
■ Blinking: Computer is in standby.
■ Off: Computer is off.
On or blinking: The internal hard drive or an
optical drive is being accessed.
■ Blinking: The battery pack has reached
a low-battery condition.
■ Off: The battery pack is fully charged or
not inserted.
Connects an optional monaural
(single sound channel) microphone.
Connects optional headphones or powered
stereo speakers. Also connects the audio
function of an audio/video device such as
a television or VCR.
Maintenance and Service Guide1–7
Product Description
The external components on the front of the Compaq Presario
M2300 computer are shown below and described in Table 1-2.
Front Components, Compaq Presario M2300
1–8Maintenance and Service Guide
Tabl e 1-2
Front Components
Compaq Presario M2300
ItemComponentFunction
1Speakers (2)Produce stereo sound.
Product Description
2Wireless light (select
models only)
3Power light■ On: Computer is turned on.
4IDE (Integrated Drive
Electronics) drive light
5Battery light■ On: The battery pack is charging.
6Display release buttonOpens the computer.
7Audio-in
(microphone) jack
8Audio-out
(headphone) jack
On: One or more optional internal wireless
devices, such as a WLAN and/or a
Bluetooth module (select models only), are
turned on.
■ Blinking: Computer is in standby.
■ Off: Computer is off.
On or blinking: The internal hard drive or an
optical drive is being accessed.
■ Blinking: The battery pack has reached
a low-battery condition.
■ Off: The battery pack is fully charged or
not inserted.
Connects an optional monaural
(single sound channel) microphone.
Connects optional headphones or powered
stereo speakers. Also connects the audio
function of an audio/video device such as
a television or VCR.
Maintenance and Service Guide1–9
Product Description
The external components on the right side of the HP Pavilion
ze2300 computer are shown below and described in Table 1-3.
Right-Side Components, HP Pavilion ze2300
1–10Maintenance and Service Guide
Tabl e 1-3
Right-Side Components
HP Pavilion ze2300
ItemComponentFunction
Product Description
1USB ports (1 or 2
depending on the
computer model)
26-in-1 Digital Media
Slot (select models
only)
31394 port
(select models only)
46-in-1 Digital Media
Slot light
(select models only)
5Optical driveSupports an optical disc.
6S-Video-out jack
(select models only)
7Security cable slotAttaches an optional security cable to the
Security solutions are designed to act as deterrents. These
Ä
deterrents may not prevent a product from being mishandled
or stolen.
Connect an optional USB device.
Supports an optional digital memory card.
Connects an optional 1394a device such
as a scanner, digital camera, or digital
camcorder.
On: A digital memory card is being
accessed.
Connects an optional S-Video device, such
as a television, VCR, camcorder, projector,
or video capture card.
computer.
Maintenance and Service Guide1–11
Product Description
The external components on the right side of the Compaq
Presario M2300 computer are shown below and described in
Table 1-4.
Right-Side Components, Compaq Presario M2300
1–12Maintenance and Service Guide
Tabl e 1-4
Right-Side Components
Compaq Presario M2300
ItemComponentFunction
Product Description
1USB ports (1 or 2
depending on the
computer model)
26-in-1 Memory Reader
(select models only)
31394 port
(select models only)
46-in-1 Memory Reader
light (select models
only)
5Optical driveSupports an optical disc.
6S-Video-out jack
(select models only)
7Security cable slotAttaches an optional security cable to the
Security solutions are designed to act as deterrents. These
Ä
deterrents may not prevent a product from being mishandled or
stolen.
Connect optional USB devices.
Supports an optional digital memory card.
Connects an optional 1394a device such
as a scanner, digital camera, or digital
camcorder.
On: A digital memory card is being
accessed.
Connects an optional S-Video device, such
as a television, VCR, camcorder, projector,
or video capture card.
computer.
Maintenance and Service Guide1–13
Product Description
The external components on the left side of the HP Pavilion
ze2300 computer are shown below and described in Table 1-5.
Left-Side Components, HP Pavilion ze2300
1–14Maintenance and Service Guide
Product Description
Tabl e 1-5
Left-Side Components
HP Pavilion ze2300
ItemComponentFunction
1Power connectorConnects an AC adapter cable.
2Monitor portConnects an optional VGA monitor or
projector.
3Expansion port 2*
(select models only)
4RJ-45 jackConnects an optional network cable.
5RJ-11 jackConnects the modem cable.
6USB portConnects an optional USB device.
7PC Card slotSupports an optional Type I or Type II 32-bit
8PC Card eject buttonEjects an optional PC Card from the
*The computer has only one expansion port. The term
describes the type of expansion port.
Connects the computer to an optional
docking device.
(CardBus) or 16-bit PC Card.
PC Card slot.
expansion port 2
Maintenance and Service Guide1–15
Product Description
The external components on the left side of the Compaq Presario
M2300 computer are shown below and described in Table 1-6.
Left-Side Components, Compaq Presario M2300
1–16Maintenance and Service Guide
Product Description
Tabl e 1-6
Left-Side Components
Compaq Presario M2300
ItemComponentFunction
1Power connectorConnects an AC adapter cable.
2Monitor portConnects an optional VGA monitor or
projector.
3Expansion port 2*
(select models only)
4RJ-45 (network) jackConnects an optional network cable.
5RJ-11 (modem) jackConnects the modem cable.
6USB portConnects an optional USB device.
7PC Card slotSupports an optional Type I or Type II 32-bit
8PC Card eject buttonEjects an optional PC Card from the
*The computer has only one expansion port. The term
describes the type of expansion port.
Connects the computer to an optional
docking device.
(CardBus) or 16-bit PC Card.
PC Card slot.
expansion port 2
Maintenance and Service Guide1–17
Product Description
The external components on the rear panel of the HP Pavilion
ze2300 computer are shown below and described in Table 1-7.
Rear Panel Components, HP Pavilion ze2300
Tabl e 1-7
Rear Panel Components
HP Pavilion ze2300
ItemComponentFunction
1Battery bayHolds a battery pack.
2Exhaust ventProvides airflow to cool internal
components.
To prevent overheating, do not obstruct vents. Do not allow a
Ä
hard surface, such as a printer, or a soft surface, such as
pillows, thick rugs, or clothing, to block airflow.
1–18Maintenance and Service Guide
The external components on the rear panel of the Compaq
Presario M2300 computer are shown below an described
in Table 1-8.
Rear Panel Components, Compaq Presario M2300
Tabl e 1-8
Rear Panel Components
Compaq Presario M2300
ItemComponentFunction
1Battery bayHolds a battery pack.
Product Description
2Exhaust ventProvides airflow to cool internal
components.
To prevent overheating, do not obstruct vents. Do not allow a
Ä
hard surface, such as a printer, or a soft surface, such as
pillows, thick rugs, or clothing, to block airflow.
Maintenance and Service Guide1–19
Product Description
The computer keyboard components on the HP Pavilion ze2300
computer are shown below and described in Table 1-9.
Keyboard Components, HP Pavilion ze2300
1–20Maintenance and Service Guide
Product Description
Table 1-9
Keyboard Components
HP Pavilion ze2300
ItemComponentFunction
1Function keys (12)Perform system and application tasks.
When combined with the fn key, several
keys perform additional tasks as hotkeys.
2caps lock keyEnables caps lock and turns on the caps
lock light.
3fn
4Windows logo keyDisplays the Windows Start menu.
5Windows
6Arrow keysMoves the cursor around the screen.
7Keypad keys (15)Can be used like the keys on an external
8num lock keyOn: Enables numeric lock, turns on the
keyCombines with other keys to perform
system tasks. For example, pressing
fn+f7 decreases screen brightness.
Displays a shortcut menu for items
applications key
beneath the pointer.
numeric keypad.
embedded numeric keypad, and turns on
the num lock light.
Maintenance and Service Guide1–21
Product Description
The computer keyboard components on the Compaq Presario
M2300 computer are shown below and described in Table 1-10.
Keyboard Components, Compaq Presario M2300
1–22Maintenance and Service Guide
Product Description
Table 1-10
Keyboard Components
Compaq Presario M2300
ItemComponentFunction
1Function keys (12)Perform system and application tasks.
When combined with the Fn key, the
function keys perform additional tasks as
hotkeys.
2caps lock keyEnables caps lock and turns on the caps
lock light.
3Fn
4Windows logo keyDisplays the Windows Start menu.
5Windows
6Arrow keysMove the cursor around the screen.
7Keypad keys (15)Can be used like the keys on an external
8num lock keyEnables numeric lock, turns on the
keyCombines with other keys to perform
system tasks. For example, pressing
Fn+F7 decreases screen brightness.
Displays a shortcut menu for items
applications key
beneath the pointer.
numeric keypad.
embedded numeric keypad, and turns
on the num lock light.
Maintenance and Service Guide1–23
Product Description
The computer top components on the HP Pavilion ze2300 are
shown below and described in Table 1-11.
Top Components, HP Pavilion ze2300
Table 1-11
Top Components
HP Pavilion ze2300
ItemComponentFunction
1Left and right
TouchPad buttons
2TouchPadMoves the pointer.
3Caps lock lightOn: Caps lock is on.
4Display switchIf the computer is closed while on, initiates
1–24Maintenance and Service Guide
Function like the left and right buttons on an
external mouse.
standby.
Table 1-11
Top Components
Product Description
HP Pavilion ze2300
ItemComponentFunction
5Power buttonWhen the computer is
■ Off, press to turn on the computer.
■ On, briefly press to initiate hibernation.
■ In standby, briefly press to resume
■ In hibernation, briefly press to restore
✎
6Volume down buttonDecreases system volume.
7Volume mute button
Mute light
8Volume up buttonIncreases system volume.
9Wireless button
(select models only)
Mutes or restores volume.
On: Volume is muted.
Turns the wireless functionality on or off but
does not create a wireless connection.
✎
(Continued)
from standby.
from hibernation.
If the system has stopped responding
and Windows shutdown procedures
cannot be used, press and hold for at
least 4 seconds to turn off the
computer.
To establish a wireless connection,
a wireless network must already be
set up.
10Num lock lightOn: Num lock or the embedded keypad
is on.
116-in-1 Digital Media
Slot light
(select models only)
12TouchPad vertical
scrolling region
Maintenance and Service Guide1–25
On: A digital memory card is being
accessed.
Scrolls upward or downward.
Product Description
The top components on the Compaq Presario M2300 are shown
below and described in Table 1-12.
Top Components, Compaq Presario M2300
Table 1-12
Top Components
Compaq Presario M2300
ItemComponentFunction
1Left and right
TouchPad buttons
2TouchPadMoves the pointer.
3Caps lock lightOn: Caps lock is on.
4Display switchIf the computer is closed while on, initiates
1–26Maintenance and Service Guide
Function like the left and right buttons on an
external mouse.
standby.
Table 1-12
Top Components
Product Description
Compaq Presario M2300
ItemComponentFunction
5Wireless light (select
models only)
6Power buttonWhen the computer is
7Volume down buttonDecreases system volume.
8Volume up buttonIncreases system volume.
9Volume mute button
Mute light
10Num lock lightOn: Num lock or the embedded keypad
On: One or more optional internal wireless
devices, such as a WLAN and/or a
Bluetooth module (select models only), are
turned on.
■ Off, press to turn on the computer.
■ On, briefly press to initiate hibernation.
■ In standby, briefly press to resume
from standby.
■ In hibernation, briefly press to restore
from hibernation.
If the system has stopped responding
✎
and Windows shutdown procedures
cannot be used, press and hold for at
least 4 seconds to turn off the
computer.
Mutes or restores volume.
On: Volume is muted.
is on.
(Continued)
116-in-1 Memory Reader
light (select models
only)
12TouchPad vertical and
horizontal scroll
regions
Maintenance and Service Guide1–27
On: A digital memory card is being
accessed.
Scroll upward or downward and left or right.
Product Description
The external components on the bottom of the HP Pavilion
ze2300 are shown below and described in Table 1-13.
Bottom Components, HP Pavilion ze2300
Table 1-13
Bottom Components
HP Pavilion ze2300
ItemComponentFunction
1Battery bayHolds a battery pack.
2Battery pack release latchReleases a battery pack from the
battery bay.
3Memory module
compartment
1–28Maintenance and Service Guide
Contains two memory module slots that
support replaceable memory modules.
The number of preinstalled memory
modules varies by computer model.
Table 1-13
Bottom Components
Product Description
HP Pavilion ze2300
ItemComponentFunction
4Exhaust vents (4)Provide airflow to cool internal
To prevent overheating, do not obstruct vents. Do not allow a
Ä
hard surface, such as a printer, or a soft surface, such as
pillows, thick rugs or clothing, to block airflow.
5Optical driveSupports an optical disc.
6Label areaContains the computer serial number
7Mini PCI compartmentHolds an optional wireless LAN device.
To prevent an unresponsive system and the display of a
Ä
warning message, install only a Mini PCI device authorized for
use in your computer by the governmental agency that
regulates wireless devices in your country. If you install a device
and then receive a warning message, remove the device to
restore computer functionality. Then contact Customer Care.
8Hard drive bayHolds the internal hard drive.
(Continued)
components.
and other applicable regulatory labels.
Maintenance and Service Guide1–29
Product Description
The external components on the bottom of the Compaq Presario
M2300 are shown below and described in Table 1-14.
Bottom Components, Compaq Presario M2300
Table 1-14
Bottom Components
Compaq Presario M2300
ItemComponentFunction
1Battery bayHolds a battery pack.
2Battery pack release latchReleases a battery pack from the
battery bay.
3Memory module
compartment
1–30Maintenance and Service Guide
Contains two memory module slots that
support replaceable memory modules.
The number of preinstalled memory
modules varies by computer model.
Table 1-14
Bottom Components
Product Description
Compaq Presario M2300
ItemComponentFunction
4Exhaust vents (4)Provide airflow to cool internal
components.
To prevent overheating, do not obstruct vents. Do not allow a
Ä
hard surface, such as a printer, or a soft surface, such as
pillows, thick rugs, or clothing, to block airflow.
5Optical driveSupports an optical disc.
6Label areaContains the computer serial number
and other applicable regulatory labels.
7Mini PCI compartmentHolds an optional wireless LAN device.
To prevent an unresponsive system and the display of a
Ä
warning message, install only a Mini PCI device authorized
for use in your computer by the governmental agency that
regulates wireless devices in your country. If you install a device
and then receive a warning message, remove the device to
restore computer functionality. Then contact Customer Care.
8Hard drive bayHolds the internal hard drive.
(Continued)
Maintenance and Service Guide1–31
Product Description
1.5Design Overview
This section presents a design overview of key parts and features
of the computer. Refer to Chapter 3, “Illustrated Parts Catalog,”
to identify replacement parts, and Chapter 5, “Removal and
Replacement Procedures,” for disassembly steps.
The system board provides the following device connections:
■ Memory module
■ Mini PCI communications module
■ Hard drive
■ Display
■ Keyboard and TouchPad
■ Audio
■ Intel Pentium M and Celeron M processors
■ Fan
■ PC Card
CAUTION: To properly ventilate the computer, allow at least a 7.6-cm
Ä
(3-inch) clearance on the left and right sides of the computer.
The computer uses an electric fan for ventilation. The fan is
controlled by a temperature sensor and is designed to be turned
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 left side of the computer.
1–32Maintenance and Service Guide
Troubleshooting
WARNING: Only authorized technicians trained by HP should repair
Å
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, do not attempt
to make repairs at the component level or modifications to any printed
wiring board. Improper repairs can create a safety hazard. Any
indication of component replacement or printed wiring board
modification may void any warranty or exchange allowances.
2.1 Computer Setup
Computer Setup is a preinstalled, ROM-based utility that can be
used even when the operating system is not working or will not
load. If the operating system is working, the computer restarts the
operating system after you exit Computer Setup.
Pointing devices are not supported in Computer Setup; you
✎
must use the keyboard to navigate and make selections.
2
The menu tables later in this chapter provide an overview of
Computer Setup options.
Maintenance and Service Guide2–1
Troubleshooting
Accessing Computer Setup
The information and settings in Computer Setup are accessed
from the File, Security, Tools, and Advanced menus.
1. Open Computer Setup by turning on or restarting the
computer. Press
displayed in the lower-left corner of the screen.
❏ To change the language, press f2.
❏ To view navigation information, press f1.
❏ To return to the Computer Setup menu, press esc.
2. Select the File, Security, Tools, or Advanced menu.
3. To exit Computer Setup, choose one of the following:
❏ To exit without saving any changes, use the arrow keys
to select File > Ignore changes and exit, and then follow
the instructions on the screen.
❏ To exit and save all the settings you have entered, use the
arrow keys to select File > Save changes and exit, and
then follow the instructions on the screen.
Your preferences are set when you exit Computer Setup and go
into effect when the computer restarts.
f10 while the F10 = Based Setup message is
Computer Setup Defaults
To return all settings in Computer Setup to the values that were
set at the factory:
1. Open Computer Setup by turning on or restarting the
computer. Press
is displayed in the lower-left corner of the screen.
❏ To change the language, press f2.
❏ To view navigation information, press f1.
2. Use the arrow keys to select File > Restore defaults.
3. Select the Restore Defaults check box.
2–2Maintenance and Service Guide
f10 while the F10 = Based Setup message
Troubleshooting
4. To confirm the restoration, press f10.
5. Select File > Save changes and exit, and then follow the
instructions on the screen.
When the computer restarts, the factory settings are restored, and
any identification information you have entered is saved.
Selecting from the File Menu
Table 2 -1
File Menu
SelectTo Do This
System Information■ View identification information about the
computer and any battery packs in the system.
■ View specification information about the
processor, memory and cache size, video
revision, keyboard controller version, and
system ROM.
Save to floppySave system configuration settings to a diskette.
Restore to floppyRestore system configuration settings from a
diskette.
Restore defaultsReplace configuration settings in Computer Setup
with factory default settings. (Identification
information is retained.)
Ignore changes and exitCancel changes entered during the current
session. Then exit and restart the computer.
Save changes and exitSave changes entered during the current session.
Then exit and restart the computer. The changes
you save are to into effect when the computer
restarts.
Maintenance and Service Guide2–3
Troubleshooting
Selecting from the Security Menu
Table 2 -2
Security Menu
SelectTo Do This
Administrator passwordEnter, change, or delete an HP Administrator
password.
Power-on passwordEnter, change, or delete a power-on password.
DriveLock passwordsEnable/disable DriveLock; change a DriveLock
user or master password.
DriveLock Settings are accessible only
✎
when you enter Computer Setup by turning
on (not restarting) the computer.
Smart Card SecurityEnable/disable power-on support for smart cards.
This feature is supported by select smart
✎
card readers only.
Embedded Security■ Enable/Disable the embedded security chip.
■ Restore embedded security chip to factory
settings.
■ Enable/Disable power-on authentication
support.
■ Enable/Disable automatic DriveLock.
■ Reset power-on authentication credential
Embedded Security settings are accessible
✎
only if the computer is equipped with an
embedded security chip.
Device securityEnable/Disable devices in the system.
Enable NIC for inclusion in MultiBoot.
System IDsEnter user-defined identification values.
2–4Maintenance and Service Guide
Troubleshooting
Selecting from the Tools Menu
Table 2 -3
Tools M enu
SelectTo Do This
HDD Self Test optionsRun a quick or comprehensive self-test on any
hard drive in the system.
Battery InformationView information about any battery packs in the
computer.
Memory Check■ Run a self-test on memory modules in the
computer.
■ View information about memory modules
installed in the computer.
Maintenance and Service Guide2–5
Troubleshooting
Selecting from the Advanced Menu
Table 2 -4
Advanced Menu
SelectTo Do This
Language (or press f2)Change the Computer Setup language.
Boot options■ Enable/Disable MultiBoot, which sets a startup
sequence that can include most bootable
devices and media in the system.
■ Set the boot order.
Device options■ Swap the functions of the fn key and left ctrl
key.
■ Enable/Disable multiple pointing devices at
startup. (To set the computer to support only a
single, usually nonstandard, pointing device at
startup, select Disable.)
■ Enable/Disable USB legacy support for a USB
keyboard, mouse, and hub. When USB legacy
support is enabled
❐ A USB keyboard, mouse, and hub work
even when a Windows operating system
is not loaded.
❐ The computer starts from a bootable hard
drive, diskette drive diskette, or CD,
CD-RW, or DVD inserted into a drive
connected by a USB connector to the
computer or to an optional docking
device.
■ Select a parallel port mode: EPP (Enhanced
Parallel Port), standard, bidirectional, or ECP
(Enhanced Capabilities Port).
■ Enable/Disable all settings in the SpeedStep
window. (When Disable is selected, the
computer runs in Battery Optimized mode.)
Intel Pentium M 750 (1.80-GHz) with 400-MHz
front-side bus (FSB)
Intel Pentium M 740 (1.70-GHz) with 400-MHz FSB
Intel Pentium M 735A (1.70-GHz) with 400-MHz
FSB
Intel Pentium M 730 (1.60-GHz) with 400-MHz FSB
Intel Pentium M 725A (1.60-GHz) with 400-MHz
FSB
Intel Celeron M 380 (1.70-GHz) with 400-MHz FSB
Intel Celeron M 370 (1.50-GHz) with 400-MHz FSB
Intel Celeron M 360 (1.40-GHz) with 400-MHz FSB
Intel Celeron M 350 (1.30-GHz) with 400-MHz FSB
13Battery connector board382413-001
14System board (includes disk cell RTC battery)395135-001
The following sections include some of the considerations
that you should keep in mind during disassembly and assembly
procedures.
As you remove each subassembly from the computer, place
✎
the subassembly (and all accompanying s) away from the work
area to prevent damage.
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.
Cables and Connectors
CAUTION: When servicing the computer, ensure that cables are
Ä
placed in their proper locations during the reassembly process.
Improper cable placement can damage the computer.
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; these cables
tear easily.
4–2Maintenance and Service Guide
Removal and Replacement Preliminaries
4.3 Preventing Damage to
Removable Drives
Removable drives are fragile components that must be handled
with care. To prevent damage to the computer, damage to a
removable drive, or loss of information, observe the following
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, and then shut it down
through the operating system.
■ Before removing a diskette drive or optical drive, ensure that
a diskette or disc is not in the drive and ensure that the optical
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 covered with at least one inch of
shock-proof foam.
■ Avoid dropping drives from any height onto any surface.
■ After removing a hard drive, an optical drive, or a diskette
drive, place it in a static-proof bag.
■ Avoid exposing a hard drive to products that have magnetic
fields, such as monitors or speakers.
■ Avoid exposing a drive to temperature extremes or liquids.
■ If a drive must be mailed, place the drive in a bubble pack
mailer or other suitable form of protective packaging and
label the package “FRAGILE: Handle With Care.”
Maintenance and Service Guide4–3
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 might not
be affected at all and can work perfectly throughout a normal
cycle. Or the device might function normally for a while, then
degrade in the internal layers, reducing its life expectancy.
4–4Maintenance and Service Guide
Removal and Replacement Preliminaries
4.5 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
the parts arrive at static-free workstations.
■ Place items on a grounded surface before removing items
from their containers.
■ Always be properly grounded when touching a sensitive
component or assembly.
■ Store reusable electrostatic-sensitive parts from assemblies
in protective packaging or nonconductive foam.
■ Use transporters and conveyors 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.
Maintenance and Service Guide4–5
Removal and Replacement Preliminaries
4.6 Workstation Precautions
Use the following grounding precautions at workstations:
■ Cover the workstation with approved static-shielding material
(refer to
■ Use a wrist strap connected to a properly grounded work
surface and use properly grounded tools and equipment.
■ Use conductive field service tools, such as cutters,
screwdrivers, and vacuums.
■ When using fixtures must directly contact dissipative surfaces,
use fixtures made only of static-safe materials.
■ Keep the 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 these
items 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.
Table 4-2, “Static-Shielding Materials”).
4.7 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, wear a strap snugly against the skin at all times.
On grounded mats with banana-plug connectors, use alligator
clips to connect a wrist strap.
■ 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.
4–6Maintenance and Service Guide
Removal and Replacement Preliminaries
Other grounding equipment recommended for use in preventing
electrostatic damage includes:
■ Antistatic tape
■ Antistatic smocks, aprons, and sleeve protectors
■ Conductive bins and other assembly or soldering aids
■ Nonconductive foam
■ Conductive tabletop workstations with ground cords of
one megohm resistance
■ Static-dissipative tables or floor mats with hard ties to
the ground
■ Field service kits
■ Static awareness labels
■ Material-handling packages
■ Nonconductive plastic bags, tubes, or boxes
■ Metal tote boxes
■ Electrostatic voltage levels and protective materials
Maintenance and Service Guide4–7
Removal and Replacement Preliminaries
Table 4-1 shows how humidity affects the electrostatic voltage
levels generated by different activities.
Tabl e 4-1
Typical Electrostatic Voltage Levels
Relative Humidity
Event10%40%55%
Walking across carpet35,000 V15,000 V7,500 V
Walking across vinyl floor12,000 V 5,000 V3,000 V
Motions of bench worker6,000 V800 V400 V
Removing DIPS from plastic tube2,000 V700 V400 V
Removing DIPS from vinyl tray11,500 V4,000 V2,000 V
Removing DIPS from Styrofoam14,500 V5,000 V3,500 V
Removing bubble pack from PCB26,500 V20,000 V7,000 V
Packing PCBs in foam-lined box21,000 V11,000 V5,000 V
A product can be degraded by as little as 700 V.
✎
Table 4-2 lists the shielding protection provided by antistatic
bags and floor mats.
Table 4 -2
Static-Shielding Materials
MaterialUseVoltage Protection Level
Antistatic plasticBags1,500 V
Carbon-loaded plasticFloor mats7,500 V
Metallized laminateFloor mats5,000 V
4–8Maintenance and Service Guide
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