HP Compaq nx6325 Notebook PC
HP Compaq nx6315 Notebook PC
Document Part Number: 417967-001
June 2006
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. AMD, Sempron, Turion, and combinations thereof, are
trademarks of Advanced Micro Devices, Inc. Bluetooth is a trademark
owned by its proprietor and used by Hewlett-Packard Company under
license. Intel is a trademark or registered trademark of Intel Corporation in
the United States and other countries. SD Logo is a trademark of its
proprietor. Java is a trademark of Sun Microsystems, Inc.
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 Compaq nx6325 Notebook PC
HP Compaq nx6315 Notebook PC
First Edition: June 2006
Document Part Number: 417967-001
The HP Compaq nx6325 Notebook PC and HP Compaq nx6315
Notebook PC offer advanced modularity, AMD Turion™
Mobile 64 Technology and Mobile AMD Sempron™ processors,
and extensive multimedia support.
HP Compaq nx6325 Notebook PC and
HP Compaq nx6315 Notebook PC
Maintenance and Service Guide1–1
Product Description
1.1Features
■ The following processors are available, varying by computer
model:
❏ AMD Turion 64 ML-60 (2.00-GHz)
❏ AMD Turion 64 ML-56 (1.80-GHz)
❏ AMD Turion 64 ML-52 (1.60-GHz)
❏ AMD Turion 64 ML-50 (1.60-GHz)
❏ Mobile AMD Sempron 3500+ (1.80-GHz)
❏ Mobile AMD Sempron 3400+ (1.80-GHz)
❏ Mobile AMD Sempron 3200+ (1.60-GHz)
■ 15.0-inch, SXGA+WVA, TFT (1400 × 1050) or 15.0-inch,
XGA, TFT (1280 × 800) with over 16.8 million colors,
varying by computer model
■ 100-, 80-, 60-, and 40-GB high-capacity hard drive, varying
by computer model
■ 256-MB DDR2 synchronous DRAM (SDRAM) at 533 MHz,
expandable to 2.0 GB
■ Microsoft® Windows® XP Professional
■ Full-size Windows keyboard with embedded numeric keypad
❏ Universal Serial Bus (USB) v. 2.0 (two or three, varying
by computer model)
Maintenance and Service Guide1–3
Product Description
1.2 Resetting the Computer
If the computer you are servicing has an unknown password,
follow the steps below to reset the password. These steps also
clear CMOS.
The following steps will not clear an unknown password if the
✎
stringent security option has been enabled in the BIOS. If
stringent security is enabled, the system board must be replaced
to reset an unknown password. Refer to Section 5.13, “RTC
Battery,” for more information on replacing the system board.
Before replacing the system board, perform the steps below to be
sure that stringent security has been properly enabled.
Enabling stringent security provides enhanced protection for the
power-on password and administrator password and other forms
of power-on authorization. Stringent security is enabled/disabled
by accessing the Password Options menu in the Computer Setup
utility. Refer to Section 2.1, “Computer Setup,” for more
information.
1. Prepare the computer for disassembly (refer to Section 5.3,
“Preparing the Computer for Disassembly,” for more
information). Remove the real-time clock (RTC) battery
(refer to Section 5.13, “RTC Battery,” for more information
on removing and replacing the RTC battery).
2. Wait approximately 5 minutes.
3. Replace the RTC battery and reassemble the computer.
4. Connect AC power to the computer. Do not reinsert any
batteries at this time.
5. Turn on the computer.
All passwords and all CMOS settings have been cleared.
1–4Maintenance and Service Guide
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
■ Lid switch standby/resume
■ Power button
■ Advanced Configuration and Power Management (ACPM)
compliance
Product Description
Maintenance and Service Guide1–5
Product Description
1.4 External Components
The external components on the front of the computer are shown
below and described in Table 1-1.
Front Components
Tabl e 1-1
Front Components
ItemComponentFunction
1Display release latchOpens the computer.
2Wireless lightOn: An integrated wireless device, such as
a wireless local area network (LAN) device
and/or a Bluetooth® device, is turned on.
3Power light■ On: The computer is on.
■ Blinking: The computer is in standby.
■ Off: The computer is off or in hibernation.
1–6Maintenance and Service Guide
Tabl e 1-1
Product Description
Front Components
ItemComponentFunction
4Battery light■ Amber: A battery is charging.
■ Green: A battery is close to full charge
■ Blinking amber: A battery that is the only
■ Off: If the computer is plugged into an
5Drive lightBlinking: The hard drive or optical drive is
being accessed.
6Speakers (2)Produce computer sound.
7Digital Media Slot
(HP Compaq nx6325
models only)
Supports optional digital card formats:
SD (Secure Digital) Memory Card,
MultiMediaCard, Memory Stick, Memory
Stick Pro, Memory Stick Duo (with adapter),
SmartMedia card, and xD-Picture Card.
(Continued)
capacity.
available power source has reached a
low-battery condition. When the battery
reaches a critical low-battery condition,
the battery light begins blinking more
quickly.
external power source, the light is turned
off when all batteries in the computer are
fully charged. If the computer is not
plugged into an external power source,
the light stays off until the battery
reaches a low-battery condition.
8Digital Media Slot light
(HP Compaq nx6325
models only)
Maintenance and Service Guide1–7
On: A digital card is being accessed.
Product Description
The external components on the right side of the computer are
shown below and described in Table 1-2.
Right-Side Components
1–8Maintenance and Service Guide
Tabl e 1-2
Right-Side Components
ItemComponentFunction
Product Description
1USB port
(HP Compaq nx6325
models only)
21394 portConnects an optional IEEE 1394 device
3RJ-11 (modem) jackConnects a modem cable.
4Optical driveReads an optical disc.
Connects optional USB devices.
such as a camcorder.
Maintenance and Service Guide1–9
Product Description
The external components on the left side of the computer are
shown below and described in Table 1-3.
Left-Side Components
Tabl e 1-3
Left-Side Components
ItemComponentFunction
1RJ-45 (network) jackConnects a network cable.
2External monitor portConnects an external monitor.
3Exhaust ventEnables airflow to cool internal
1–10Maintenance and Service Guide
components.
To prevent overheating, do not
Ä
obstruct vents. Use the computer
only on a hard, flat surface. Do not
allow another hard surface, such as
an adjoining optional printer, or a soft
surface, such as pillows or thick rugs
or clothing, to block airflow.
The computer fan starts up
✎
automatically to cool internal
components and prevent
overheating. It is normal for the
internal fan to cycle on and off during
routine operation.
Tabl e 1-3
Product Description
Left-Side Components
ItemComponentFunction
4USB ports (2)Connect optional USB devices.
5Audio-out
(headphone) jack
6Audio-in
(microphone) jack
7ExpressCard slot
(HP Compaq nx6325
models only)
8PC Card slot
(select models only) or
smart card slot
(select models only)
Produces system stereo sound when
connected to optional powered stereo
speakers, headphones, ear buds, a
headset, or television audio.
Connects an optional headset microphone
or a monaural microphone.
Supports optional ExpressCard/54 or
ExpressCard/34 cards.
Supports optional Type I/II PC Cards, 16-bit
PC Cards, and 32-bit (CardBus) or industry
standard smart cards including
Java™ Cards.
(Continued)
Maintenance and Service Guide1–11
Product Description
The external components on the rear panel of the computer are
shown below and described in Table 1-4.
Rear Panel Components
1–12Maintenance and Service Guide
Table 1-4
Rear Panel Components
ItemComponentFunction
Product Description
1Security cable slotAttaches an optional security cable to the
2Battery bayHolds the primary battery.
3Smart adapter power
connector
4S-Video-out jack
(HP Compaq nx6325
models only)
computer.
The security cable is designed to
Ä
act as a deterrent, but it may not
prevent the computer from being
mishandled or stolen.
Connects an AC adapter.
Connects an optional S-Video device,
such as a television, VCR, camcorder,
overhead projector, or video capture card.
Maintenance and Service Guide1–13
Product Description
The standard keyboard components of the computer are shown
below and described in Table 1-5.
Standard Keyboard Components
1–14Maintenance and Service Guide
Table 1-5
Standard Keyboard Components
ItemComponentFunction
Product Description
1f1 to f12 keys (12)Execute frequently used system functions
2caps lock keyEnables caps lock and turns on the caps
3fn
4Windows logo keyDisplays the Windows Start menu.
5Windows
6Arrow keysMoves the cursor around the screen.
7Embedded numeric
8num lock keyEnables numeric lock, turns on the
keyExecutes frequently used system
applications key
keypad keys (15)
when pressed in combination with the fn
key.
lock light.
functions when pressed in combination
with a function key or the esc key.
Displays a shortcut menu for items
beneath the pointer.
Can be used like the keys on an external
numeric keypad.
embedded numeric keypad, and turns
on the num lock light.
Maintenance and Service Guide1–15
Product Description
The computer top components are shown below and described in
Table 1-6.
Top Components, Part 1
Table 1-6
Top Components, Part 1
ItemComponentFunction
1Power buttonWhen the computer is
■ Off, press to turn on the computer.
■ In standby, briefly press to exit standby.
■ In hibernation, briefly press to exit
hibernation.
If the computer has stopped responding
and Windows shutdown procedures
cannot be used, press and hold the power
button for at least 5 seconds to turn off the
computer.
2Display switchInitiates standby if the display is closed
while the computer is on.
1–16Maintenance and Service Guide
Table 1-6
Product Description
Top Components, Part 1
ItemComponentFunction
3Info Center button
(HP Compaq nx6325
models only)
4Wireless buttonTurns the wireless feature on or off, but
Launches Info Center, which enables you
to open various software solutions.
does not create a wireless connection.
✎
5Presentation button
(HP Compaq nx6325
models only)
6Caps lock lightOn:
7Num lock lightOn:
8Volume mute button
(HP Compaq nx6325
models only)
9Volume down button
(HP Compaq nx6325
models only)
10Volume up button
(HP Compaq nx6325
models only)
Starts the presentation feature.
Mutes and restores speaker volume.
Decreases speaker volume.
Increases speaker volume.
(Continued)
To establish a wireless connection,
a wireless network must already be
set up.
caps lockis on.
num lock or the numeric keypad is on.
11Internal microphone
(HP Compaq nx6325
models only)
Maintenance and Service Guide1–17
Records sound.
Product Description
The computer top components are continued below and described
in Table 1-7.
Top Components, Part 2
1–18Maintenance and Service Guide
Product Description
Table 1-7
Top Components, Part 2
ItemComponentFunction
1TouchPadMoves the pointer and selects or activates
items on the screen. Can be set to perform
other mouse functions, such as scrolling,
selecting, and double-clicking.
2Left and right TouchPad
buttons
3TouchPad scroll zoneScrolls up or down.
4Fingerprint reader
(HP Compaq nx6325
models only)
Function like the left and right buttons on
an external mouse.
Allows a fingerprint logon to Windows
instead of a password logon.
Maintenance and Service Guide1–19
Product Description
The external components on the bottom of the computer are
shown below and described in Table 1-8.
Bottom Components
Table 1 -8
Bottom Components
ItemComponentFunction
1Battery bayHolds the primary battery.
2Docking connector
(HP Compaq nx6325
models only)
3Primary battery release
latches (2)
1–20Maintenance and Service Guide
Connects the an optional
docking device.
Releases the primary battery from the
battery bay.
Table 1 -8
Product Description
Bottom Components
(Continued)
ItemComponentFunction
4Exhaust ventsEnable airflow to cool internal
components.
To prevent overheating, do not
Ä
obstruct vents. Use the computer
only on a hard, flat surface. Do
not allow another hard surface,
such as an adjoining optional
printer, or a soft surface, such as
pillows or thick rugs or clothing,
to block airflow.
The computer fan starts up
✎
automatically to cool internal
components and prevent
overheating. It is normal for the
internal fan to cycle on and off
during routine operation.
5Hard drive bayHolds the hard drive.
6Expansion memory
module compartment
7Accessory battery
connector (exposed when
cover is pushed to the
right)
Contains the expansion memory
module slot.
Connects an optional accessory battery.
Maintenance and Service Guide1–21
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:
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 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. Exhaust air is
displaced through the ventilation grill located on the left side of
the computer.
1–22Maintenance 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.
Some of the Computer Setup menu items listed in this guide may
✎
not be supported by your computer.
2
Pointing devices are not supported in Computer Setup. You must
use the keyboard to navigate and make selections.
An external keyboard connected by USB can be used with
Computer Setup only if USB legacy support is enabled.
The information and settings in Computer Setup are accessed
from the File, Security, Diagnostics, and System Configuration
menus.
Maintenance and Service Guide2–1
Troubleshooting
1. Open Computer Setup by turning on or restarting the
computer, and then pressing
Setup” message is displayed in the lower-left corner of the
screen.
In Computer Setup, the following shortcuts are available:
❏ To change the language, press f2.
❏ To view navigation information, press f1.
❏ To close open dialog boxes and return to the main
2. Select the Files, Security, Diagnostics, or System
Configuration menu.
3. To exit Computer Setup, choose one of the following
methods:
❏ To exit Computer Setup without saving your preferences,
❏ To save your preferences and exit Computer Setup, use the
f10 while the “F10 = ROM Based
Computer Setup screen
esc.
use the arrow keys to select File > Ignore Changes and
Exit. Then follow the instructions on the screen.
arrow keys to select File > Save Changes and Exit. Then
follow the instructions on the screen.
2–2Maintenance and Service Guide
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, and then pressing
Setup” message is displayed in the lower-left corner of the
screen.
In Computer Setup, the following shortcuts are available:
❏ To change the language, press f2.
❏ To view navigation information, press f1.
❏ To close open dialog boxes and return to the main
Computer Setup screen
2. Use the arrow keys to select File > Restore defaults, and
then press
enter.
esc.
Troubleshooting
f10 while the “F10 = ROM Based
3. When the confirmation dialog box opens, press
4. Select the Restore defaults check box, and then press
5. To confirm the restoration, press
6. To save your preferences and exit Computer Setup, use the
arrow keys to select File > Save Changes and Exit. Then
follow the instructions on the screen.
Your preferences go into effect when the computer restarts.
Your password and security settings are not changed when you
✎
restore the factory default settings.
Maintenance and Service Guide2–3
f10.
f10.
enter.
Troubleshooting
Computer Setup Menus
The menu tables in this section provide an overview of Computer
Setup options.
Some of the Computer Setup menu items listed in this chapter
✎
may not be supported by your computer.
Table 2 -1
File Menu
SelectTo Do This
System Information■ View identification information for the computer
and the battery packs in the system.
■ View specification information for the
processor, cache and memory size, system
ROM, video revision, and keyboard controller
version.
Restore defaultsReplace the configuration settings in Computer
Setup with factory default settings. (Password and
security settings are not changed when you
restore the factory default settings.)
Ignore changes and exit Cancel 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. Your changes
go into effect when the computer restarts.
2–4Maintenance and Service Guide
Troubleshooting
Table 2 -2
Security Menu
SelectTo Do This
Setup passwordEnter, change, or delete a setup password.
Power-on passwordEnter, change, or delete a power-on password.
■ Enable/disable password requirement on
computer restart.
DriveLock passwords■ Enable/disable DriveLock on any computer
hard drive and optional MultiBay hard drives.
■ 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 support for smart card and Java™
Card power-on authentication.
Power-on authentication for smart cards is
✎
supported only on computers with optional
smart card readers.
TPM Embedded SecurityEnable/disable support for TPM (Trusted Platform
Module) Embedded Security, which protects the
computer from unauthorized access to owner
functions in Embedded Security for ProtectTools.
For more information, refer to the ProtectTools
Security Manager Reference Guide located in the
Help and Support Center, or refer to Credential
Manager for ProtectTools online Help.
Maintenance and Service Guide2–5
Troubleshooting
Table 2 -2
Security Menu
SelectTo Do This
System IDsEnter user-defined computer asset and
ownership tag.
Disk SanitizerRun Disk Sanitizer to destroy all existing data on
the primary hard drive. The following options are
available:
✎
✎
✎
Ä
(Continued)
Fast: Runs the Disk Sanitizer erase cycle
once.
Optimum: Runs the Disk Sanitizer erase
cycle 3 times.
Custom: Allows you to select the desired
number of Disk Sanitizer erase cycles from
a list.
If you run Disk Sanitizer, the data on the
primary hard drive is destroyed
permanently.
Table 2 -3
Diagnostics Menu
SelectTo Do This
Memory CheckRun a comprehensive check on system memory.
Hard Drive Self-Test
options
2–6Maintenance and Service Guide
Run a comprehensive self-test on any hard drive
in the system or on any optional MultiBay hard
drive.
Troubleshooting
Table 2 -4
System Configuration Menu
SelectTo Do This
Language (or press f2).Change the Computer Setup language.
Boot options■ Set f9, f10, and f12 delay when starting up.
■ Enable/disable CD-ROM boot.
■ Enable/disable Floppy boot.
■ Enable/disable internal network adapter boot
and set the boot mode (PXE or RPL).
■ Enable/disable MultiBoot, which sets a boot
order that can include most boot devices in the
system.
■ Set the boot order.
Maintenance and Service Guide2–7
Troubleshooting
Table 2 -4
System Configuration Menu
SelectTo Do This
Device configurations■ Swap the functions of the fn key and left ctrl
key.
■ Enable/disable multiple standard 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. When
enabled, USB legacy support allows a USB
keyboard, mouse, and hub to work in Computer
Setup even when a Microsoft Windows
operating system is not loaded.
■ The computer to start from bootable USB
devices, including a hard drive, diskette drive
diskette, or optical drive connected by a USB
port to the computer or to an optional docking
device (select models only).
■ Automatic/disable Intel® SpeedStep
Technology.
■ Select a parallel port mode: EPP (Enhanced
Parallel Port), standard, bidirectional, or ECP
(Enhanced Capabilities Port).
■ Enable/disable BIOS DMA data transfers
(select models only).
■ Enable/disable the system fan when connected
to an AC outlet.
■ Enable/disable Intel or AMD PSAE Execution
Disable. When enabled, the processor can
disable some virus code execution, which
helps to improve computer security.
■ Enable/disable LAN Power Save. When
enabled, saves power by turning off the LAN
when not in use.
431965-001USB/audio board for use with HP Compaq nx6315 models
(includes USB/audio board cable)
Maintenance and Service Guide3–21
Illustrated Parts Catalog
Table 3 -6
Sequential Part Number Listing
Spare Part
NumberDescription
432160-001Plastics Kit
416039-001Keyboard for use with models with TouchPad and fingerprint
reader in the United States
416039-021Keyboard for use with models with TouchPad and fingerprint
reader in Europe
416039-031Keyboard for use with models with TouchPad and fingerprint
reader in the United Kingdom
416039-041Keyboard for use with models with TouchPad and fingerprint
reader in Germany
416039-051Keyboard for use with models with TouchPad and fingerprint
reader in France
416039-061Keyboard for use with models with TouchPad and fingerprint
reader in Italy
416039-071Keyboard for use with models with TouchPad and fingerprint
reader in Spain
416039-081Keyboard for use with models with TouchPad and fingerprint
reader in Denmark
416039-091Keyboard for use with models with TouchPad and fingerprint
reader in Norway
416039-111Keyboard for use with models with TouchPad and fingerprint
reader in Switzerland
(Continued)
416039-121Keyboard for use with models with TouchPad and fingerprint
reader in French Canada
416039-131Keyboard for use with models with TouchPad and fingerprint
reader in Portugal
416039-141Keyboard for use with models with TouchPad and fingerprint
reader in Turkey
3–22Maintenance and Service Guide
Table 3 -6
Illustrated Parts Catalog
Sequential Part Number Listing
Spare Part
NumberDescription
416039-151Keyboard for use with models with TouchPad and fingerprint
reader in Greece
416039-161Keyboard for use with models with TouchPad and fingerprint
reader in Latin America
416039-171Keyboard for use with models with TouchPad and fingerprint
reader in Saudi Arabia
416039-201Keyboard for use with models with TouchPad and fingerprint
reader in Brazil
416039-211Keyboard for use with models with TouchPad and fingerprint
reader in Hungary
416039-221Keyboard for use with models with TouchPad and fingerprint
reader in the Czech Republic
416039-231Keyboard for use with models with TouchPad and fingerprint
reader in Slovakia
416039-251Keyboard for use with models with TouchPad and fingerprint
reader in Russia
416039-281Keyboard for use with models with TouchPad and fingerprint
reader in Thailand
(Continued)
416039-291Keyboard for use with models with TouchPad and fingerprint
reader in Japan
416039-A41Keyboard for use with models with TouchPad and fingerprint
reader in Belgium
416039-AB1Keyboard for use with models with TouchPad and fingerprint
reader in Taiwan
416039-AD1Keyboard for use with models with TouchPad and fingerprint
reader in Korea
416039-B71Keyboard for use with models with TouchPad and fingerprint
reader in Sweden
Maintenance and Service Guide3–23
Illustrated Parts Catalog
Table 3 -6
Sequential Part Number Listing
Spare Part
NumberDescription
416039-BA1Keyboard for use with models with TouchPad and fingerprint
reader in Slovenia
416039-BB1Keyboard for use with models with TouchPad and fingerprint
reader in Israel
416039-DD1Keyboard for use with models with TouchPad and fingerprint
reader in Iceland
432160-001Screw Kit
(Continued)
3–24Maintenance and Service Guide
Removal and Replacement
This chapter provides essential information for proper and
safe removal and replacement service.
4.1Tools Required
You will need the following tools to complete the removal and
replacement procedures:
■ Magnetic screwdriver
■ Phillips P0 screwdriver
■ Torx8 screwdriver
■ 5.0-mm socket for system board screwlocks
■ Flat-bladed screwdriver
4
Preliminaries
Maintenance and Service Guide4–1
Removal and Replacement Preliminaries
4.2 Service Considerations
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 screws) 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, be sure 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. Be sure 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, be sure that
a diskette or disc is not in the drive and be sure that the optical
drive tray is closed.
■ Before handling a drive, be sure 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. Be sure 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 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”).
4–6Maintenance and Service Guide
Removal and Replacement Preliminaries
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.
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 resistane.
■ 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
5
Removal and Replacement
Procedures
This chapter provides removal and replacement procedures.
There are as many as 50 screws and screw locks, in 9 different
sizes, that must be removed, replaced, or loosened when servicing
the computer. Make special note of each screw and screw lock
size and location during removal and replacement.
Refer to Appendix A, “Screw Listing” for detailed information on
screw and screw lock sizes, locations, and usage.
Maintenance and Service Guide5–1
Removal and Replacement Procedures
5.1Serial Number
Report the computer serial number to HP when requesting
information or ordering spare parts. The serial number is
located on the bottom of the computer.
Serial Number Location
5–2Maintenance and Service Guide
Removal and Replacement Procedures
5.2 Disassembly Sequence Chart
Use the chart below to determine the section number to be
referenced when removing computer components.
Disassembly Sequence Chart
SectionDescription
5.3Preparing the Computer for
Disassembly
Battery0
5.4Hard Drive2 loosened to remove the
5.5Computer Feet0
5.6Bluetooth Module0
5.7External Memory Module1 loosened to remove the
5.8Optical Drive1 to remove the optical drive
5.9Keyboard2
5.10Fan2 loosened
5.11Heat Sink4
# of Screws Removed
hard drive cover
1 loosened to remove the
hard drive
4 to remove the hard drive
frame
memory module compartment
cover
2 to remove the optical drive
bracket
5.12Processor1 loosened
5.13RTC Battery0
Maintenance and Service Guide5–3
Removal and Replacement Procedures
Disassembly Sequence Chart
SectionDescription
5.14Mini Card WLAN Module2
To prevent an unresponsive system and the display of a
Å
warning message, install only a Mini Card 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.
5.15Internal Memory Module0
5.16Switch Cover2
5.17Display Assembly6
5.18Top C o v e r15
5.19Speaker0
5.20Microphone0
5.21Modem Module2
5.22USB/Audio Board1
5.23System Board2 screw locks
(Continued)
# of Screws Removed
5.3 Preparing the Computer for
Disassembly
Before you begin any removal or installation procedures:
1. 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.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power cord.
5–4Maintenance and Service Guide
Removal and Replacement Procedures
Battery Spare Part Number Information
6-cell, 5.1-Ah
6-cell, 4.0-Ah
415306-001
393652-001
4. Remove the battery by following these steps:
a. Turn the computer upside down with the rear panel
toward you.
b. Slide the battery release latch on the right 1 and then the
battery release latch on the left 2 to release the battery.
c. Slide the battery 3 straight back and remove it.
Removing the Battery
Reverse the above procedure to install the battery.
Maintenance and Service Guide5–5
Removal and Replacement Procedures
5.4 Hard Drive
Hard Drive Spare Part Number Information
Hard drives (all 540 rpm, include frame)
100-GB
80-GB
60-GB
40-GB
413853-001
413852-001
413851-001
413850-001
1. Prepare the computer for disassembly (refer to Section 5.3).
2. Position the computer with the front toward you.
5–6Maintenance and Service Guide
Removal and Replacement Procedures
3. Loosen the two Phillips PM2.0×5.0 screws 1 that secure the
hard drive cover to the computer.
4. Lift the right side of the hard drive cover 2 and swing it up
and to the left.
5. Remove the hard drive cover.
The hard drive cover is included in the Plastics Kit, spare part
✎
number 430884-001.
Removing the Hard Drive Cover
Maintenance and Service Guide5–7
Removal and Replacement Procedures
6. Loosen the Phillips PM2.5×13.0 spring-loaded hard drive
retention screw 1.
7. Grasp the mylar tab 2 on the hard drive and slide the hard
drive 3 to the right to disconnect it from the system board.
8. Remove the hard drive 4 from the hard drive bay.
Removing the Hard Drive
5–8Maintenance and Service Guide
Removal and Replacement Procedures
9. Remove the four Phillips PM3.0×4.0 hard drive frame
screws 1 from each side of the hard drive.
10. Lift the frame 2 straight up to remove if from the hard drive.
Removing the Hard Drive Frame
Reverse the above procedure to reassemble and install the
hard drive.
Maintenance and Service Guide5–9
Removal and Replacement Procedures
5.5 Computer Feet
The computer feet are adhesive-backed rubber pads. The feet are
included in the Plastics Kit, spare part number 430884-001.
Replacing the Computer Feet
5–10Maintenance and Service Guide
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