HP 541 User Manual Page 1

HP 540 Notebook PCHP 541 Notebook PCMaintenance and Service Guide

Category Description Computer modelsequipped withGLE960 systemboardHP 540Computermodels equippedwith GME965system boardHP 540Computermodelsequipped wi

DVD/CD-RW Combo Drive specificationsApplicable disc Read:CD-DA, CD+(E)G, CD-MIDI, CD-TEXT, CD-ROM, CD-ROM XA, MIXED MODE CD, CD-I,CD-I Bridge (Photo-C

System DMA specificationsHardware DMA System functionDMA0 Not applicableDMA1* Not applicableDMA2* Not applicableDMA3 Not applicableDMA4 Direct memory

System interrupt specificationsHardware IRQ System functionIRQ0 System timerIRQ1 Standard 101-/102-Key or Microsoft Natural KeyboardIRQ2 CascadedIRQ3

System I/O address specificationsI/O address (hex) System function (shipping configuration)000 - 00F DMA controller no. 1010 - 01F Unused020 - 021 Int

I/O address (hex) System function (shipping configuration)220 - 22F Entertainment audio230 - 26D Unused26E - 26 Unused278 - 27F Unused280 - 2AB Unused

System memory map specificationsSize Memory address System function640 KB 00000000-0009FFFF Base memory128 KB 000A0000-000BFFFF Video memory48 KB 000C

7 Screw listingThis section provides specification and reference information for the screws and screw locks used inthe computer. All screws listed in

Phillips PM2.0×5.0 captive screwColor Quantity Length Thread Head diameterBlack 4 5.0 mm 2.0 mm 5.0 mmWhere used:(1) Two captive screws that secure th

Phillips PM2.5×12.0 captive screwColor Quantity Length Thread Head diameterSilver 1 12.0 mm 2.5 mm 5.0 mmWhere used: One captive screw that secures th

Phillips PM3.0×4.0 screwColor Quantity Length Thread Head diameterSilver 4 4.0 mm 3.0 mm 5.0 mmWhere used: 4 screws that secure the hard drive bracket

Category Description Computer modelsequipped withGLE960 systemboardHP 540Computermodels equippedwith GME965system boardHP 540Computermodelsequipped wi

Phillips PM2.5×4.0 screwColor Quantity Length Thread Head diameterBlack 4 4.0 mm 2.5 mm 5.0 mmWhere used: 2 screws that secure the WLAN module to the

Slotted Torx ST8M2.5×7.0 screwColor Quantity Length Thread Head diameterBlack 18 7.0 mm 2.5 mm 5.0 mmWhere used:(1) One screw that secures the optical

Where used: 2 screws that secure the display assembly to the computerWhere used: 2 screws that secure the display assembly to the computerWhere used:

Where used: 2 screws that secure the top cover to the base enclosureSlotted Torx ST8M2.5×7.0 screw 105

Phillips PM2.0×4.0 screwColor Quantity Length Thread Head diameterSilver 16 4.0 mm 2.0 mm 4.5 mmWhere used: 2 screws that secure the optical drive bra

Where used: 2 screws that secure the TouchPad bracket and TouchPad button board to the top coverWhere used: 2 screws that secure the Blueotooth module

Torx T8M2.5×3.0 broad-head screwColor Quantity Length Thread Head diameterBlack 2 3.0 mm 2.5 mm 8.0 mmWhere used: 2 screws that secure the switch cove

Torx T8M2.5×4.0 screwColor Quantity Length Thread Head diameterBlack 3 4.0 mm 2.5 mm 5.0 mmWhere used: 2 screws that secure the speaker to the compute

Torx T8M2.5×6.0 screwColor Quantity Length Thread Heat widthBlack 9 6.0 mm 2.5 mm 5.0 mmWhere used: 8 screws that secure the display bezel to the disp

Phillips PM2.0×2.0 broad-head screwColor Quantity Length Thread Head diameterBlack 3 2.0 mm 2.0 mm 7.0 mmWhere used: 3 screws that secure the top cove

Category Description Computer modelsequipped withGLE960 systemboardHP 540Computermodels equippedwith GME965system boardHP 540Computermodelsequipped wi

Phillips PM2.0×6.0 screwColor Quantity Length Thread Head diameterBlack 1 6.0 mm 2.0 mm 4.5 mmWhere used: One screw that secures the system board to t

Phillips PM2.5×7.0 screwColor Quantity Length Thread Head diameterBlack 1 7.0 mm 2.5 mm 5.0 mmWhere used: One screw that secures the fan to the base e

Phillips PM2.5×7.0 captive screwColor Quantity Length Thread Head diameterSilver 1 7.0 mm 2.5 mm 5.0 mmWhere used: One captive screw that secures the

Phillips PM2.5×10.0 captive screwColor Quantity Length Thread Head diameterSilver 4 or 6 10.0 mm 2.5 mm 5.0 mmWhere used: 6 captive screws that secure

Where used: 4 captive screws that secure the heat sink to the system board on computer modelsequipped with UMA graphics subsystem memory (screws are s

Phillips PM2.0×8.0 screwColor Quantity Length Thread Head diameterBlack 2 8.0 mm 2.0 mm 4.5 mmWhere used: 2 screws that secure the ExpressCard assembl

8 Backup and recovery118 Chapter 8 Backup and recovery

Backup and recovery in Windows VistaOverviewTo protect your information, use the Backup and Restore Center to back up individual files and folders,bac

The screen image is added to the document.4. Save the document.●When backing up to discs, use any of the following types of discs (purchased separatel

CAUTION: Using Startup Repair completely erases hard drive contents and reformats the hard drive.All files you have created and any software installed

Category Description Computer modelsequipped withGLE960 systemboardHP 540Computermodels equippedwith GME965system boardHP 540Computermodelsequipped wi

CAUTION: Using a Windows Vista operating system DVD completely erases hard drive contents andreformats the hard drive. All files you have created and

Backup and Recovery in Windows XPOverviewTo protect your information, use the Windows Backup utility (select models only) to back up files andfolders

NOTE: Be sure that the computer is connected to AC power before you start the backup process.NOTE: The backup process may take over an hour, depending

9 Connector pin assignmentsAudio-out (headphone)Pin Signal1 Audio out, left channel2 Audio out, right channel3GroundAudio-in (microphone)Pin Signal1 A

External monitorPin Signal1 Red analog2 Green analog3 Blue analog4 Not connected5 Ground6 Ground analog7 Ground analog8 Ground analog9 +5 VDC10 Ground

RJ-11 (modem)Pin Signal1 Unused2 Tip3 Ring4 Unused5 Unused6UnusedRJ-11 (modem) 127

RJ-45 (network)Pin Signal1 Transmit +2 Transmit -3 Receive +4 Unused5 Unused6 Receive -7 Unused8 UnusedUniversal Serial BusPin Signal1 +5 VDC2 Data -3

10 Power cord set requirementsThe wide range input feature of the computer permits it to operate from any line voltage from 100 to 120volts AC or from

Requirements for specific countries and regionsCountry/region Accredited agency Applicable note numberAustralia EANSW 1Austria OVE 1Belgium CEBC 1Cana

11 RecyclingBatteryWhen a battery has reached the end of its useful life, do not dispose of the battery in general householdwaste. Follow the local la

Category Description Computer modelsequipped withGLE960 systemboardHP 540Computermodels equippedwith GME965system boardHP 540Computermodelsequipped wi

Perform the following steps to disassemble the display assembly:1. Remove all screw covers (1) and screws (2) that secure the display bezel to the dis

4. Disconnect all display panel cables (1) from the display inverter and remove the inverter (2).5. Remove all screws (1) that secure the display pane

10. Remove the display panel frame (2) from the display panel.11. Remove the screws (1) that secure the backlight cover to the display panel.12. Lift

15. Remove the backlight cables (1) from the clip (2) in the display panel.16. Turn the display panel upside down.WARNING! The backlight contains merc

18. Remove the backlight from the backlight frame.19. Disconnect the display panel cable (1) from the LCD panel.20. Remove the screws (2) that secure

IndexAAC adapter, spare partnumbers 22, 24AD adapter, spare partnumbers 24antenna, disconnecting 42antennae 13audio, product description 4audio-in ja

display inverterremoval 55spare part numbers 16, 25, 56display lid switch moduleremoval 52spare part numbers 20, 52display panel, removal 56display

light components 8lightsbattery 11caps lock 8power 9wireless 8Logo Kitspare part numbers 28Logo Kit, spare part numbers 22, 26Mmass storage devices, s

RJ-45 jacklocation 11pin assignments 128RTC batteryremoval 78spare part numbers 17, 24, 78Rubber Kit, spare partnumbers 27SScrew Kitcontents 98spare

2 External component identificationTop componentsTouchPadItem Component Function(1) TouchPad* Moves the pointer and selects or activates items on thes

Buttons, lights, and speakerItem Component Function(1) Caps lock light On: Caps lock is on.(2) Wireless button Turns the wireless feature on or off, b

Item Component Function(5) Power light●On: The computer is on.●Blinking: The computer is in the Sleep state (WindowsVista) or Standby (Windows XP).●Of

Front componentsItem Component Function(1) Audio-out (headphone) jack Connects optional powered stereo speakers, headphones,ear buds, a headset, or te

Left-side componentsItem Component Function(1) RJ-11 (modem) jack Connects a modem cable.(2) Vent Enables airflow to cool internal components.NOTE: Th

© Copyright 2008 Hewlett-PackardDevelopment Company, L.P.Bluetooth is a trademark owned by itsproprietor and used by Hewlett-PackardCompany under lice

Bottom componentsItem Component Function(1) Battery release latches (2) Release the battery from the battery bay.(2) Battery bay Holds the battery.(3)

Wireless antennae (select models only)On select computer models, at least 2 antennae send and receive signals from one or more wirelessdevices. These

3 Illustrated parts catalogSerial number locationWhen ordering parts or requesting information, provide the computer serial number and model numberloc

Computer major componentsComputer major components 15

Item Description Spare part number(1) Display assemblies (include 2 WLAN antenna transceivers and cables) 14.1-inch, WXGA BrightView display assembly

Item Description Spare part number For use only with computer models equipped with discrete graphics subsystem 456606-001(11) Processors (includes re

Item Description Spare part number(18) WLAN modules Intel 802.11 a/b/g/n WLAN modules: ●For use in Antigua and Barbuda, Argentina, Aruba, the Bahamas

Plastics KitItem Description Spare part number Plastics Kit: 456614-001(1) Hard drive bay cover (includes 2 captive screws, secured by C-clips)(2) WL

Cable KitItem Description Spare part number Cable Kit: 457400-001(1) RJ-11 jack cable(2) Display lid switch module and cable(3) Bluetooth module cabl

Mass storage devicesItem Description Spare part number(1) Optical drives (include bezel and bracket) DVD±RW and CD-RW Super Multi Double-Layer Combo D

Safety warning noticeWARNING! To reduce the possibility of heat-related injuries or of overheating the computer, do notplace the computer directly on

Miscellaneous partsDescription Spare part numberAC adapters65-W AC adapter (for use only with computer models with UMA graphics system memory)417220-0

Description Spare part numberFor use in Korea 490371-AD1Screw Kit●Phillips PM3.0×4.0 screw●Phillips PM2.5×12.0 captive screw●Phillips PM2.5×10.0 capti

Sequential part number listingSpare partnumberDescription374791-001 90-W slimline AC adapter (for use only with computer models with discrete graphics

Spare partnumberDescription451861-002 Intel 802.11 a/b/g WLAN module for use in Austria, Azerbaijan, Bahrain, Belgium, Brazil, Bulgaria, Croatia,Cypru

Spare partnumberDescription461749-011 Modem module or use only in Japan and Asia Pacific countries and regions (includes modem modulecable)NOTE: The m

Spare partnumberDescription499999-161 Keyboard for use in Latin America499999-201 Keyboard for use in Brazil499999-281 Keyboard for use in Thailand499

Spare partnumberDescription508757-001 Intel Celeron M P550 2.0-GHz (1-MB L2 cache, 533-MHz FSB)508815-001 LCD cable kit509115-001 System board for use

4 Removal and replacement proceduresPreliminary replacement requirementsTools requiredYou will need the following tools to complete the removal and re

Cables and connectorsCAUTION: When servicing the computer, be sure that cables are placed in their proper locationsduring the reassembly process. Impr

Grounding guidelinesElectrostatic discharge damageElectronic components are sensitive to electrostatic discharge (ESD). Circuitry design and structure

iv Safety warning notice

Packaging and transporting guidelinesFollow these grounding guidelines when packaging and transporting equipment:●To avoid hand contact, transport pro

Equipment guidelinesGrounding equipment must include either a wrist strap or a foot strap at a grounded workstation.●When seated, wear a wrist strap c

Unknown user passwordIf the computer you are servicing has an unknown user password, follow these steps to clear thepassword:NOTE: These steps also cl

Component replacement proceduresThis chapter provides removal and replacement procedures.There are as many as 76 screws, in 16 different sizes, that m

Computer feetThe computer feet are adhesive-backed rubber pads. The feet are included in the Rubber Kit, sparepart number 500132-001. There are 4 rubb

BatteryDescription Spare part number6-cell, 47-Wh Li-ion battery 456623-001Before disassembling the computer, follow these steps:1. Shut down the comp

Hard driveNOTE: All hard drive spare part kits include a hard drive bracket.Description Spare part number250-GB, 5400-rpm hard drive 500012-001160-GB,

6. Remove the hard drive (4) from the hard drive bay.7. If it is necessary to replace the hard drive bracket, remove the two Phillips PM3.0×4.0 hard d

WLAN moduleDescription spare part numbersIntel 802.11 a/b/g/n WLAN modules:●For use in Antigua and Barbuda, Argentina, Aruba, the Bahamas, Barbados, B

Description spare part numbers●For use in Austria, Azerbaijan, Bahrain, Belgium, Brazil, Bulgaria, Croatia, Cyprus, the CzechRepublic, Denmark, Egypt,

Table of contents1 Product description2 External component identificationTop components ...

Before removing the WLAN module, follow these steps:1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn t

6. Remove the WLAN module (3) by pulling the module away from the slot at an angle.NOTE: WLAN modules are designed with a notch (4) to prevent incorre

2. Lift the front edge of the cover (2), swing it up and back, and remove the cover. The memory modulecompartment cover is included in the Plastics Ki

Optical driveNOTE: All optical drive spare part kits include an optical drive bezel.Description spare part numbersDVD±RW and CD-RW SuperMulti Double-L

5. If it is necessary to replace the optical drive bracket, position the optical drive with the rear towardyou.6. Remove the two Phillips PM2.0×4.0 sc

Switch cover and keyboardDescription spare part numbersSwitch cover (includes button board and cable) 500001-001Keyboards for use in the following cou

2. Remove the two slotted Torx ST8M2.5×7.0 screws that secure the keyboard to the computer.3. Turn the computer display-side up, with the front toward

6. Lift the rear edge of the keyboard (1) until it rests at an angle, and slide it back (2) until it rests onthe display assembly and switch cover.7.

9. Release the ZIF connector (1) to which the button board cable is attached, and disconnect thebutton board cable (2) from the system board.10. Remov

SpeakerDescription Spare part numberSpeaker 456593-001Before removing the speaker, follow these steps:1. Shut down the computer. If you are unsure whe

Equipment guidelines ... 33Unknown user password ...

Display lid switch moduleNOTE: The display lid switch module is included in the Cable Kit, spare part number 457400-001.Before removing the display li

Display assemblyNOTE: All display assembly spare part kits include 2 WLAN antenna transceivers and cables.Description Spare part number14.1-inch, WXGA

4. Open the computer as far as possible.5. Disconnect the display panel cables (1) and (2) from the system board.6. Remove the wireless antenna cables

9. If it is necessary to replace the display bezel, display inverter, or display hinges, remove the eightrubber screw covers (1) and the eight Torx T8

13. Disconnect the display panel cable (2) and the backlight cable (3) from the display inverter.14. Remove the display inverter. The display inverter

18. Remove the display hinges (2). The left and right display hinges are available using spare partnumber 456619-001.Reverse this procedure to reassem

Top coverNOTE: The top cover includes the TouchPad board and cable, and the TouchPad button board andcable.Description Spare part numberTop cover 5000

2. Remove the followng screws:(1) Three Phillips PM2.0×2.0 broad-head screws(2) Seven slotted Torx ST8M2.5×7.0 screws(3) One Torx T8m2.5×4.0 screw3. T

10. Release the ZIF connector (4) to which the TouchPad cable is connected and disconnect theTouchPad cable (5) from the system board.11. Remove the t

TouchPad board and TouchPad button boardNOTE: The top cover, spare part number 500002-001, includes the TouchPad board and cable, andthe TouchPad butt

System interrupt specifications ... 94System I

4. Remove the two Phillips PM2.0×4.0 screws (4) that secure the TouchPad bracket to the computer.5. Release the TouchPad bracket (1) by sliding it bac

9. Remove the TouchPad board (1) from the top cover.NOTE: When replacing the TouchPad board and TouchPad button board, be sure the TouchPadbutton actu

Bluetooth moduleNOTE: The Bluetooth module spare part kits do not include a Bluetooth module cable. The Bluetoothmodule cable is included in the Cable

3. Remove the Bluetooth module (3) from the base enclosure.Reverse this procedure to install the Bluetooth module.Component replacement procedures 65

System boardNOTE: All system board spare part kits include the ExpressCard assembly.NOTE: All system board spare part kits include replacement thermal

Remove the system board:1. Remove the RJ-11 jack (1) from the clip built into the base enclosure and remove the RJ-11 jackcable from the hook (2) buil

6. Remove the system board (4) from the base enclosure by sliding it back.Reverse the preceding procedure to install the system board.68 Chapter 4 R

FanDescription Spare part numberFan 431312-001Before removing the fan, follow these steps:1. Shut down the computer. If you are unsure whether the com

2. Remove the fan (2) from the base enclosure.Reverse this procedure to install the fan.NOTE: To properly ventilate the computer, allow at least a 7.6

Heat sinkNOTE: The heat sink spare part kits include replacement thermal material. Replacement thermalmaterial is also available in the Thermal Materi

10 Power cord set requirementsRequirements for all countries and regions ...

3. Remove the heat sink (2).NOTE: The thermal material must be thoroughly cleaned from the surfaces of the heat sink(1), (2), and (3), and the system

5. Remove the heat sink (2).NOTE: The thermal material must be thoroughly cleaned from the surfaces of the heat sink (1)and (2), and the system board

ProcessorNOTE: All processor spare part kits include replacement thermal material. Replacement thermalmaterial is also available in the Thermal Materi

3. Lift the processor (2) straight up and remove it.NOTE: When you install the processor, the gold triangle (3) on the processor must be alignedwith t

Modem moduleNOTE: The modem module spare part kits do not include a modem module cable. The modem modulecable is included in the Cable Kit, spare part

3. Lift the modem module (2) straight up to disconnect it from the system board.4. Remove the modem module.Reverse this procedure to install the modem

RTC batteryNOTE: Removing the RTC battery and leaving it uninstalled for 5 or more minutes causes allpasswords and CMOS settings to be cleared.Descrip

2. Remove the RTC battery from the socket on the system board.Reverse this procedure to install the RTC battery.ExpressCard assemblyNOTE: All system b

Remove the ExpressCard assembly:1. Turn the system board upside down, with the USB connectors toward you.2. Remove the two Phillips PM2.0×8.0 screws (

5 Computer SetupStarting Computer SetupComputer Setup is a preinstalled, ROM-based utility that can be used even when the operating systemis not worki

1 Product descriptionCategory Description Computer modelsequipped withGLE960 systemboardHP 540Computermodels equippedwith GME965system boardHP 540Comp

Using Computer SetupNavigating and selecting in Computer SetupThe information and settings in Computer Setup are accessed from the File, Security, Dia

Computer Setup menusThe menu tables in this section provide an overview of Computer Setup options.NOTE: Some of the Computer Setup menu items listed i

Security menuSelect To do thisSetup password Enter, change, or delete a setup password.Power-On password Enter, change, or delete a power-on password.

System Configuration menuNOTE: Some of the listed System Configuration options may not be supported by your computer.Select To do thisLanguage (or pre

Select To do thisUSB port to the computer or to an optional dockingdevice (select models only).●Select a parallel port mode: EPP (Enhanced ParallelPor

Select To do thisBuilt-In Device Options●Enable/disable embedded WWAN Device Radio.●Enable/disable embedded WLAN Device Radio.●Enable/disable embedded

6 SpecificationsComputer specifications Metric U.S.DimensionsDepth24.64 cm 9.70 inWidth 33.80 cm 13.31 inHeight (front to rear) 3.08 to 3.43 cm 1.21

Metric U.S.Nonoperating 1.50 g zero-to-peak, 10 Hz to 500 Hz, 0.5 oct/min sweep rateNOTE: Applicable product safety standards specify thermal limits

Hard drive specifications 250-GB* 120-GB* 80-GB*DimensionsHeight9.5 mm 9.5 mm 9.5 mmWidth 70 mm 70 mm 70 mmWeight 101 g 101 g 101 gInterface type SAT

DVD±RW and CD-RW Double-Layer Combo DrivespecificationsApplicable disc Read:CD-DA, CD+(E)G, CD-MIDI, CD-TEXT, CD-ROM, CD-ROM XA, MIXED MODE CD, CD-I,C