HP Compaq nw8440 Specifications

Maintenance and Service GuideHP Compaq nw8440 Notebook PCHP Compaq nc8430 Notebook PCHP Compaq nx8420 Notebook PCDocument Part Number: 417790-002Septe

Product DescriptionMaintenance and Service Guide 1–3 Integrated wireless support for Mini Card IEEE 802.11a/b/g or 802.11b/g Wireless LAN (WLAN) devi

5–10 Maintenance and Service GuideRemoval and Replacement Procedures5.5 Computer FeetThe computer feet are adhesive-backed rubber pads. The feet are i

Removal and Replacement ProceduresMaintenance and Service Guide 5–115.6 Optical Drive1. Prepare the computer for disassembly (Section 5.3).2. Position

5–12 Maintenance and Service GuideRemoval and Replacement Procedures6. If it is necessary to replace the optical drive bracket, remove the two Phillip

Removal and Replacement ProceduresMaintenance and Service Guide 5–135.7 External Memory Module1. Prepare the computer for disassembly (refer to Sectio

5–14 Maintenance and Service GuideRemoval and Replacement Procedures3. Loosen the Phillips PM2.0×4.0 screw 1 that secures the memory module compartmen

Removal and Replacement ProceduresMaintenance and Service Guide 5–156. Spread the retaining tabs 1 on each side of the memory module socket to release

5–16 Maintenance and Service GuideRemoval and Replacement Procedures5.8 Bluetooth Module1. Prepare the computer for disassembly (refer to Section 5.3)

Removal and Replacement ProceduresMaintenance and Service Guide 5–176. Remove the two Phillips PM1.5×3.0 screws 1 that secure the Bluetooth module to

5–18 Maintenance and Service GuideRemoval and Replacement Procedures5.9 KeyboardKeyboard Spare Part Number InformationKeyboards with pointing stick fo

Removal and Replacement ProceduresMaintenance and Service Guide 5–191. Prepare the computer for disassembly (Section 5.3).2. Position the computer wit

1–4 Maintenance and Service GuideProduct Description1.2 Resetting the ComputerIf the computer you are servicing has an unknown password, follow the st

5–20 Maintenance and Service GuideRemoval and Replacement Procedures4. Turn the computer display side up with the front toward you.5. Open the compute

Removal and Replacement ProceduresMaintenance and Service Guide 5–218. Release the zero insertion force (ZIF) connector 1 to which the keyboard cable

5–22 Maintenance and Service GuideRemoval and Replacement Procedures5.10 Fan Assembly1. Prepare the computer for disassembly (Section 5.3).2. Release

Removal and Replacement ProceduresMaintenance and Service Guide 5–233. Disconnect the fan cable 1 from the system board.✎The following screws should b

5–24 Maintenance and Service GuideRemoval and Replacement Procedures✎The thermal paste should be thoroughly cleaned from the surfaces of the video boa

Removal and Replacement ProceduresMaintenance and Service Guide 5–25✎The following screws should be removed, then installed, in the 1, 2, 3, 4 sequenc

5–26 Maintenance and Service GuideRemoval and Replacement Procedures✎The thermal paste should be thoroughly cleaned from the surfaces of the thermal p

Removal and Replacement ProceduresMaintenance and Service Guide 5–275.11 Heat Sink1. Prepare the computer for disassembly (Section 5.3).2. Release the

5–28 Maintenance and Service GuideRemoval and Replacement Procedures✎The following screws should be loosened and installed in the 1, 2, 3, 4 sequence

Removal and Replacement ProceduresMaintenance and Service Guide 5–29✎The thermal paste should be thoroughly cleaned from the surfaces of the heat sink

Product DescriptionMaintenance and Service Guide 1–51. 3 Powe r M a n a g e m e n tThe computer comes with power management features that extend batt

5–30 Maintenance and Service GuideRemoval and Replacement Procedures5.12 Processor1. Prepare the computer for disassembly (Section 5.3) and remove the

Removal and Replacement ProceduresMaintenance and Service Guide 5–312. Use a flat-bladed screwdriver to turn the processor locking screw 1 one-quarter

5–32 Maintenance and Service GuideRemoval and Replacement Procedures5.13 Internal Memory Module1. Prepare the computer for disassembly (Section 5.3).2

Removal and Replacement ProceduresMaintenance and Service Guide 5–333. Spread the retaining tabs 1 on each side of the memory module socket to release

5–34 Maintenance and Service GuideRemoval and Replacement Procedures5.14 RTC Battery✎The RTC battery is included in the Plastics Kit, spare part numbe

Removal and Replacement ProceduresMaintenance and Service Guide 5–355.15 TouchPad1. Prepare the computer for disassembly (Section 5.3).2. Remove the k

5–36 Maintenance and Service GuideRemoval and Replacement Procedures5. Turn the computer display-side up with the front toward you.6. Open the compute

Removal and Replacement ProceduresMaintenance and Service Guide 5–379. Disconnect the TouchPad cable 1 from the system board.10. Remove the TouchPad 2

5–38 Maintenance and Service GuideRemoval and Replacement Procedures5.16 Mini Card ModuleMini Card ModuleSpare Part Number Information802.11 b/g HS WL

Removal and Replacement ProceduresMaintenance and Service Guide 5–391. Prepare the computer for disassembly (Section 5.3).2. Remove the keyboard (Sect

1–6 Maintenance and Service GuideProduct Description1. 4 E x t e r n a l C o m p o n e n t sThe external components on the front of the computer are

5–40 Maintenance and Service GuideRemoval and Replacement Procedures4. Make note of which antenna cable is attached to which antenna clip on the Mini

Removal and Replacement ProceduresMaintenance and Service Guide 5–415.17 Switch Cover✎Both switch cover spare part kits include the LED board and LED

5–42 Maintenance and Service GuideRemoval and Replacement Procedures5. Turn the computer display-side up with the front toward you.6. Open the compute

Removal and Replacement ProceduresMaintenance and Service Guide 5–439. Disconnect the LED board cable 1 from the system board.10. Remove the switch co

5–44 Maintenance and Service GuideRemoval and Replacement Procedures5.18 Display Assembly1. Prepare the computer for disassembly (Section 5.3) and rem

Removal and Replacement ProceduresMaintenance and Service Guide 5–452. Make note of which antenna cable is attached to which antenna clip on the Mini

5–46 Maintenance and Service GuideRemoval and Replacement Procedures5. Remove the two Torx8 T8M2.5×10.0 screws 1 and the two Phillips PM2.0×2.0 screws

Removal and Replacement ProceduresMaintenance and Service Guide 5–476. Position the computer with the rear panel toward you.7. Remove the four Torx8 T

5–48 Maintenance and Service GuideRemoval and Replacement Procedures5.19 Top Cover1. Prepare the computer for disassembly (Section 5.3) and remove the

Removal and Replacement ProceduresMaintenance and Service Guide 5–493. Remove the two rubber screw covers 1 and the eleven Torx8 T8M2.5×10.0 screws 2

Product DescriptionMaintenance and Service Guide 1–73 Battery light Amber: A battery is charging. Green: A battery is close to full charge capacity

5–50 Maintenance and Service GuideRemoval and Replacement Procedures4. Turn the computer right-side up with the front toward you.5. Disconnect the spe

Removal and Replacement ProceduresMaintenance and Service Guide 5–518. Lift the front edge of the top cover 1 until it disengages from the base enclos

5–52 Maintenance and Service GuideRemoval and Replacement Procedures5.20 Modem Module1. Prepare the computer for disassembly (Section 5.3) and remove

Removal and Replacement ProceduresMaintenance and Service Guide 5–532. Remove the two Phillips PM2.5×4.0 screws 1 that secure the modem board to the s

5–54 Maintenance and Service GuideRemoval and Replacement Procedures5.21 System Board✎When replacing the system board, be sure that the following comp

Removal and Replacement ProceduresMaintenance and Service Guide 5–551. Prepare the computer for disassembly (Section 5.3) and remove the following com

5–56 Maintenance and Service GuideRemoval and Replacement Procedures3. Disconnect the following cables from the system board:1 Serial connector module

Removal and Replacement ProceduresMaintenance and Service Guide 5–574. Remove the following:1 Two Torx T8M2.5×6.0 screws2 Two Torx T8M2.5×4.0 screws3

5–58 Maintenance and Service GuideRemoval and Replacement Procedures5. Remove the modem cable 1 from the clip in the base enclosure.6. Remove the mode

Removal and Replacement ProceduresMaintenance and Service Guide 5–598. Flex the right side of the base enclosure 1 until the USB 2, 1394 3, and RJ-45

1–8 Maintenance and Service GuideProduct DescriptionThe external components on the right side of the computer are shown below and described in Table 1

5–60 Maintenance and Service GuideRemoval and Replacement Procedures10. Lift the front edge of the system board 1 until it rests at an angle.11. Slide

Removal and Replacement ProceduresMaintenance and Service Guide 5–615.22 System Board Frame1. Prepare the computer for disassembly (Section 5.3) and r

5–62 Maintenance and Service GuideRemoval and Replacement Procedures3. Remove the two Hex HM5.0×12.0 screw locks 1 on each side of the serial connecto

Removal and Replacement ProceduresMaintenance and Service Guide 5–638. If it is necessary to replace the modem cable, remove the modem connector and c

5–64 Maintenance and Service GuideRemoval and Replacement Procedures5.23 Serial Connector Module1. Prepare the computer for disassembly (Section 5.3)

Removal and Replacement ProceduresMaintenance and Service Guide 5–653. Remove the serial connector module cable 1 from the clips in the system board f

5–66 Maintenance and Service GuideRemoval and Replacement Procedures5.24 USB/Audio Board1. Prepare the computer for disassembly (Section 5.3) and remo

Removal and Replacement ProceduresMaintenance and Service Guide 5–673. Remove the two Torx8 T8M2.5×4.0 screws 1 that secure the USB/audio board to the

Maintenance and Service Guide 6–16SpecificationsThis chapter provides physical and performance specifications.Table 6-1ComputerDimensions Metric U.S.H

6–2 Maintenance and Service GuideSpecificationsRelative humidity (noncondensing)OperatingNonoperating10% to 90%5% to 95%10% to 90%5% to 95%Maximum alt

Product DescriptionMaintenance and Service Guide 1–9The external components on the rear panel of the computer are shown below and described in Table 1

SpecificationsMaintenance and Service Guide 6–3Table 6-215.4-inch, WUXGA+WVADimensionsHeightWidthDiagonal20.7 cm33.1 cm39.1 cm8.1 in13.0 in15.4 inNumb

6–4 Maintenance and Service GuideSpecificationsTable 6-315.4-inch, WSXGA+WVADimensionsHeightWidthDiagonal20.7 cm33.1 cm39.1 cm8.1 in13.0 in15.4 inNumb

SpecificationsMaintenance and Service Guide 6–5Table 6-415.4-inch, WXGA+WVADimensionsHeightWidthDiagonal20.7 cm33.1 cm39.1 cm8.1 in13.0 in15.4 inNumbe

6–6 Maintenance and Service GuideSpecificationsTable 6-5Hard Drives120-GB* 100-GB* 80-GB* 60-GB*DimensionsHeightWidthWeight9.5 mm70 mm99 g9.5 mm70 mm9

SpecificationsMaintenance and Service Guide 6–7Table 6-6DVD±RW and CD-RW Double-Layer Combo DriveApplicable disc Read:DVD-R, DVD-RW, DVD-ROM (DVD-5, D

6–8 Maintenance and Service GuideSpecificationsDisc thickness 1.2 mm (0.047 in)Track pitch 0.74 µmAccess time CD DVDRandomFull stroke< 175 ms< 2

SpecificationsMaintenance and Service Guide 6–9Table 6-7DVD/CD-RW Combo DriveDVD-ROM driveApplicable disc Read:DVD-R, DVD-RW, DVD-ROM (DVD-5, DVD-9, D

6–10 Maintenance and Service GuideSpecificationsDisc thickness 1.2 mm (0.047 in)Track pitch 0.74 µmAccess time CD DVDRandomFull stroke< 110 ms<

SpecificationsMaintenance and Service Guide 6–11Table 6-8DVD-ROM DriveApplicable disc DVD-ROM (DVD-5, DVD-9, DVD-10, DVD-18)CD-ROM (Mode 1 and 2)CD Di

6–12 Maintenance and Service GuideSpecificationsTable 6-9System DMAHardware DMA System FunctionDMA0 Not applicableDMA1* Not applicableDMA2* Not applic

1–10 Maintenance and Service GuideProduct DescriptionThe external components on the left side of the computer are shown below and described in Table 1

SpecificationsMaintenance and Service Guide 6–13Table 6-10System InterruptsHardware IRQ System FunctionIRQ0 System timerIRQ1 Standard 101-/102-Key or

6–14 Maintenance and Service GuideSpecificationsIRQ11 Intel USB EHCI controller—24CDIntel USB UHCI controller—24C4Intel USB UHCI controller—24C7Intel

SpecificationsMaintenance and Service Guide 6–15Table 6-11System I/O AddressesI/O Address (hex) System Function (shipping configuration)000 - 00F DMA

6–16 Maintenance and Service GuideSpecificationsI/O Address (hex) System Function (shipping configuration)0A2 - 0BF Unused0C0 - 0DF DMA controller no.

SpecificationsMaintenance and Service Guide 6–17I/O Address (hex) System Function (shipping configuration)2F0 - 2F7 Unused2F8 - 2FF Infrared port300 -

6–18 Maintenance and Service GuideSpecificationsTable 6-12System Memory MapSize Memory Address System Function640 KB 00000000-0009FFFF Base memory128

Maintenance and Service Guide A–1AScrew ListingThis appendix provides specification and reference information for the screws used in the computer. All

A–2 Maintenance and Service GuideScrew ListingPhillips PM3.0×3.0 Screw LocationsTable A-1Phillips PM3.0×3.0 ScrewColor Qty. Length ThreadHead WidthBla

Screw ListingMaintenance and Service Guide A–3Phillips PM2.0×5.0 Captive Screw LocationsTable A-2Phillips PM2.0×5.0 Captive ScrewColor Qty. Length Thr

A–4 Maintenance and Service GuideScrew ListingPhillips PM2.5×13.0 Captive Screw LocationTable A-3Phillips PM2.5×13.0 Captive Spring-Loaded ScrewColor

Product DescriptionMaintenance and Service Guide 1–115 Exhaust vent Provides airflow to cool internal components.ÄTo prevent overheating, do not obstr

Screw ListingMaintenance and Service Guide A–5Torx8 T8M2.5×4.0 Screw LocationTable A-4Torx8 T8M2.5×4.0 ScrewColor Qty. Length ThreadHead WidthBlack 13

A–6 Maintenance and Service GuideScrew ListingTorx8 T8M2.5×4.0 Screw LocationsTable A-4Torx8 T8M2.5×4.0 Screw (Continued)Color Qty. Length ThreadHead

Screw ListingMaintenance and Service Guide A–7Torx8 T8M2.5×4.0 Screw LocationsTable A-4Torx8 T8M2.5×4.0 Screw (Continued)Color Qty. Length ThreadHead

A–8 Maintenance and Service GuideScrew ListingTorx8 T8M2.5×4.0 Screw LocationsTable A-4Torx8 T8M2.5×4.0 Screw (Continued)Color Qty. Length ThreadHead

Screw ListingMaintenance and Service Guide A–9Phillips PM2.0×3.0 Screw LocationsTable A-5Phillips PM2.0×3.0 ScrewColor Qty. Length ThreadHead WidthSil

A–10 Maintenance and Service GuideScrew ListingPhillips PM2.0×3.0 Captive Screw LocationsTable A-5Phillips PM2.0×3.0 Screw (Continued)Color Qty. Lengt

Screw ListingMaintenance and Service Guide A–11Phillips PM1.5×3.0 Screw LocationsTable A-6Phillips PM1.5×3.0 ScrewColor Qty. Length ThreadHead WidthSi

A–12 Maintenance and Service GuideScrew ListingTorx8 T8M2.5×10.0 Screw LocationsTable A-7Torx8 T8M2.5×10.0 ScrewColor Qty. Length ThreadHead WidthBlac

Screw ListingMaintenance and Service Guide A–13Torx8 T8M2.5×10.0 Screw LocationsTable A-7Torx8 T8M2.5×10.0 Screw (Continued)Color Qty. Length ThreadHe

A–14 Maintenance and Service GuideScrew ListingTorx8 T8M2.5×10.0 Screw LocationsTable A-7Torx8 T8M2.5×10.0 Screw (Continued)Color Qty. Length ThreadHe

1–12 Maintenance and Service GuideProduct DescriptionThe standard keyboard components of the computer are shown below and described in Table 1-5.Stand

Screw ListingMaintenance and Service Guide A–15Phillips PM2.5×7.0 Captive Screw LocationsTable A-8Phillips PM2.5×7.0 Captive ScrewColor Qty. Length Th

A–16 Maintenance and Service GuideScrew ListingPhillips PM2.0×8.0 Captive Screw LocationsTable A-9Phillips PM2.0×8.0 Captive ScrewColor Qty. Length Th

Screw ListingMaintenance and Service Guide A–17Phillips PM2.0×4.0 Screw LocationsTable A-10Phillips PM2.0×4.0 ScrewColor Qty. Length ThreadHead WidthS

A–18 Maintenance and Service GuideScrew ListingPhillips PM2.0×2.0 Screw LocationsTable A-11Phillips PM2.0×2.0 ScrewColor Qty. Length ThreadHead WidthB

Screw ListingMaintenance and Service Guide A–19Phillips PM2.0×2.0 Screw LocationsTable A-11Phillips PM2.0×2.0 Screw (Continued)Color Qty. Length Threa

A–20 Maintenance and Service GuideScrew ListingPhillips PM2.5×4.0 Screw LocationsTable A-12Phillips PM2.5×4.0 ScrewColor Qty. Length ThreadHead WidthB

Screw ListingMaintenance and Service Guide A–21Hex HM5.0×12.0 Screw Lock LocationsTable A-13Hex HM5.0×12.0 Screw LockColor Qty. Length ThreadHead Widt

A–22 Maintenance and Service GuideScrew ListingTorx8 T8M2.5×6.0 Screw LocationsTable A-14Torx8 T8M2.5×6.0 ScrewColor Qty. Length ThreadHead WidthBlack

Maintenance and Service Guide B–1BSoftware Backup andRecoveryBackupHP Backup and Recovery Manager provides several ways to back up the system and to r

B–2 Maintenance and Service GuideSoftware Backup and RecoveryBacking Up the SystemUsing HP Backup and Restore Manager, you can Back up specific files

© Copyright 2006 Hewlett-Packard Development Company, L.P.Microsoft and Windows are U.S. registered trademarks of Microsoft Corporation. Intel and Cor

Product DescriptionMaintenance and Service Guide 1–13Table 1-5Standard Keyboard ComponentsItem Component Function1 f1 to f12 keys (12) Perform system

Software Backup and RecoveryMaintenance and Service Guide B–3Backing Up the Entire Hard DriveWhen you perform a complete backup of the hard drive, you

B–4 Maintenance and Service GuideSoftware Backup and RecoveryBacking Up Modifications Made to the SystemWhen you back up modifications since your last

Software Backup and RecoveryMaintenance and Service Guide B–5Scheduling BackupsTo schedule backups:1. Select Start > All Programs > HP Backup &a

B–6 Maintenance and Service GuideSoftware Backup and RecoveryHP Backup and Recovery Manager allows you to Create recovery discs (highly recommended).

Software Backup and RecoveryMaintenance and Service Guide B–7Before creating recovery discs: Obtain high-quality CD-R, DVD-R, or DVD+R media, purchas

B–8 Maintenance and Service GuideSoftware Backup and RecoveryPerforming a Recovery from the Hard DriveThere are 2 ways to initiate a recovery from the

Maintenance and Service Guide C–1CDisplay Component RecyclingÅWARNING: The backlight contains mercury. Caution should be exercised when removing and h

C–2 Maintenance and Service GuideDisplay Component RecyclingThis appendix provides disassembly instructions for the display assembly. The display asse

Display Component RecyclingMaintenance and Service Guide C–3Perform the following steps to disassemble the display assembly:1. Remove all screw covers

C–4 Maintenance and Service GuideDisplay Component Recycling2. Lift up and out on the left and right inside edges 1 and the top and bottom inside edge

1–14 Maintenance and Service GuideProduct DescriptionThe computer top components are shown below and described in Table 1-6.Top Components, Part 1

Display Component RecyclingMaintenance and Service Guide C–54. Disconnect all display panel cables 1 from the display inverter and remove the inverter

C–6 Maintenance and Service GuideDisplay Component Recycling5. Remove all screws 1 that secure the display panel assembly to the display enclosure.6.

Display Component RecyclingMaintenance and Service Guide C–77. Turn the display panel assembly upside down.8. Remove all screws that secure the displa

C–8 Maintenance and Service GuideDisplay Component Recycling9. Use a sharp-edged tool to cut the tape 1 that secures the sides of the display panel to

Display Component RecyclingMaintenance and Service Guide C–911. Remove the screws 1 that secure the backlight cover to the display panel.12. Lift the

C–10 Maintenance and Service GuideDisplay Component Recycling14. Turn the display panel right side up.15. Remove the backlight cables 1 from the clip

Display Component RecyclingMaintenance and Service Guide C–1116. Turn the display panel upside down.17. Remove the backlight frame from the display pa

C–12 Maintenance and Service GuideDisplay Component RecyclingÅWARNING: The backlight contains mercury. Caution should be exercised when removing and h

Display Component RecyclingMaintenance and Service Guide C–1319. Disconnect the display cable 1 from the LCD panel.20. Remove the screws 2 that secure

C–14 Maintenance and Service GuideDisplay Component Recycling23. Remove the LCD panel.Removing the LCD Panel24. Recycle the LCD panel and backlight.

Product DescriptionMaintenance and Service Guide 1–15Table 1-6Top ComponentsItem Component Function1 Power button When the computer is: Off, press to

Maintenance and Service Guide D–1DConnector Pin AssignmentsTable D-1Audio-Out (Headphone)Pin Signal Pin Signal1 Audio out, left channel 3 Ground2 Audi

D–2 Maintenance and Service GuideConnector Pin AssignmentsTable D-2Audio-In (Microphone)Pin Signal Pin Signal1 Audio signal in 3 Ground2 Audio signal

Connector Pin AssignmentsMaintenance and Service Guide D–3Table D-4S-Video-OutPin Signal Pin Signal1 S-VHS color (C) signal 5 TV-CD2 Composite video s

D–4 Maintenance and Service GuideConnector Pin AssignmentsTable D-5External MonitorPin Signal Pin Signal1 Red analog 9 +5 VDC2 Green analog 10 Ground3

Connector Pin AssignmentsMaintenance and Service Guide D–5Table D-6RJ-11 (Modem)Pin Signal Pin Signal1 Unused 4 Unused2 Tip 5 Unused3 Ring 6 Unused

D–6 Maintenance and Service GuideConnector Pin AssignmentsTable D-7RJ-45 (Network)Pin Signal Pin Signal1 Transmit + 5 Unused2 Transmit – 6 Receive –3

Maintenance and Service Guide E–1EPower Cord Set Requirements3-Conductor Power Cord SetThe wide range input feature of the computer permits it to oper

E–2 Maintenance and Service GuidePower Cord Set RequirementsGeneral RequirementsThe requirements listed below are applicable to all countries. The le

Power Cord Set RequirementsMaintenance and Service Guide E–3Country-Specific Requirements3-Conductor Power Cord Set RequirementsCountry/Region Accredi

E–4 Maintenance and Service GuidePower Cord Set RequirementsKorea EK 4The Netherlands KEMA 1Norway NEMKO 1People’s Republic of ChinaCCC 5Sweden SEMKO

1–16 Maintenance and Service GuideProduct DescriptionThe computer top components are shown below and described in Table 1-7.Top Components, Part 2

Maintenance and Service Guide Index–1Index1394 port 1–11AAC adapter, spare part number 3–20, 3–30accessory battery connector 1–19arrow keys 1–13audio

Index–2 Maintenance and Service GuideIndexcomputer feetillustrated 3–17locations 5–10Computer SetupAdvanced Menu 2–4Main Menu 2–2overview 2–1Security

IndexMaintenance and Service Guide Index–3Eelectrostatic discharge 4–4, 4–8exhaust vents 1–11expansion productspare part number 3–20, 3–25troubleshoot

Index–4 Maintenance and Service GuideIndexheadphone jacklocation 1–8pin assignments D–1heat sinkremoval 5–28spare part number 3–7, 3–26, 5–28HP Dockin

IndexMaintenance and Service Guide Index–5Nnetwork jacklocation 1–10pin assignments D–6network, troubleshooting 2–26nonfunctioning device, troubleshoo

Index–6 Maintenance and Service GuideIndexSScrew Kit, spare part number 3–21, 3–29, A–1security cable slot 1–10serial connector moduleremoval 5–65spar

IndexMaintenance and Service Guide Index–7troubleshootingaudio 2–21Computer Setup 2–1expansion product 2–14flowcharts 2–5keyboard 2–24modem 2–26networ

Product DescriptionMaintenance and Service Guide 1–17Table 1-7Top ComponentsItem Component Function1 Display lid switch If the computer is closed wh

1–18 Maintenance and Service GuideProduct DescriptionThe external components on the bottom of the computer are shown below and described in Table 1-8.

Product DescriptionMaintenance and Service Guide 1–19Table 1-8Bottom ComponentsItem Component Function1 Battery bay Holds the battery.2 Battery releas

1–20 Maintenance and Service GuideProduct Description1. 5 D e s i g n O ve r v i ewThis section presents a design overview of key parts and features

Maintenance and Service Guide 2–12TroubleshootingÅWARNING: Only authorized technicians trained by HP should repair this equipment. All troubleshooting

2–2 Maintenance and Service GuideTroubleshooting2. Select the Main, Security, Advanced, or Tools menu.3. To close Computer Setup and restart the compu

MSG revision historyRevision Publication date DescriptionAOctober 2010The description for Top cover part number 418807-001 has been corrected to "

TroubleshootingMaintenance and Service Guide 2–3Selecting from the Security MenuTable 2-2Security MenuSelect To Do ThisAdministrator Password Enter, c

2–4 Maintenance and Service GuideTroubleshootingSelecting from the Advanced MenuSelecting from the Tools MenuTable 2-3Advanced MenuSelect To Do ThisLa

TroubleshootingMaintenance and Service Guide 2–52.2 Troubleshooting FlowchartsTable 2-5Troubleshooting Flowcharts OverviewFlowchart Description2.1 “Fl

2–6 Maintenance and Service GuideTroubleshootingFlowchart Description2.14 “Flowchart 2.14—No OS Loading, Optical Drive”2.15 “Flowchart 2.15—No Audio,

TroubleshootingMaintenance and Service Guide 2–7Flowchart 2.1—Initial TroubleshootingConnectingto networkor modem?Begintroubleshooting.Is therepower?I

2–8 Maintenance and Service GuideTroubleshootingFlowchart 2.2—No Power, Part 11. Reset the power cables in the docking device and at the AC outlet.2.

TroubleshootingMaintenance and Service Guide 2–9Flowchart 2.3—No Power, Part 2Continued from“Flowchart 2.2—No Power, Part 1.”Visually check fordebris

2–10 Maintenance and Service GuideTroubleshootingFlowchart 2.4—No Power, Part 3Continued from“Flowchart 2.3—No Power, Part 2.”Reseat AC adapterin comp

TroubleshootingMaintenance and Service Guide 2–11Flowchart 2.5—No Power, Part 4YNContinued from“Flowchart 2.4—No Power, Part 3.”Reseat loosecomponents

2–12 Maintenance and Service GuideTroubleshootingFlowchart 2.6—No Video, Part 1ANStand-aloneor docking device?No video.Replace the following one at a

Maintenance and Service Guide iiiContents1 Product Description1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–21

TroubleshootingMaintenance and Service Guide 2–13Flowchart 2.7—No Video, Part 2YNContinued from“Flowchart 2.6—No Video, Part 1.”DoneAdjust externalmon

2–14 Maintenance and Service GuideTroubleshootingFlowchart 2.8—Nonfunctioning Docking Device(if applicable)YNReset power cord in docking device andpow

TroubleshootingMaintenance and Service Guide 2–15Flowchart 2.9—No Operating System (OS) LoadingNo OS loading from hard drive,go to “Flowchart 2.10—No

2–16 Maintenance and Service GuideTroubleshootingFlowchart 2.10—No OS Loading, Hard Drive, Part 1Go to“Flowchart 2.17—Nonfunctioning Device.”YDoneNOS

TroubleshootingMaintenance and Service Guide 2–17Flowchart 2.11—No OS Loading, Hard Drive, Part 2Load OS using Operating System disc (if applicable).C

2–18 Maintenance and Service GuideTroubleshootingFlowchart 2.12—No OS Loading, Hard Drive, Part 3YSystemfiles on harddrive?Continued from“Flowchart 2.

TroubleshootingMaintenance and Service Guide 2–19Flowchart 2.13—No OS Loading, Diskette DriveDoneYNReseatdiskette drive.OS not loadingfromdiskette dri

2–20 Maintenance and Service GuideTroubleshootingFlowchart 2.14—No OS Loading, Optical DriveYDoneNBootabledisc indrive?Discin drive?No OSloading fromC

TroubleshootingMaintenance and Service Guide 2–21Flowchart 2.15—No Audio, Part 1No audio.NComputer indocking device(if applicable)?Internalaudio?Audio

2–22 Maintenance and Service GuideTroubleshootingFlowchart 2.16—No Audio, Part 2YNContinued from “Flowchart 2.15—No Audio, Part 1.”Reloadaudio drivers

iv Maintenance and Service GuideContents3 Illustrated Parts Catalog3.1 Serial Number Location . . . . . . . . . . . . . . . . . . . . . . 3–13.2 Com

TroubleshootingMaintenance and Service Guide 2–23Flowchart 2.17—Nonfunctioning DeviceDoneAny physicaldevice detected?YNUnplug the nonfunctioning devic

2–24 Maintenance and Service GuideTroubleshootingFlowchart 2.18—Nonfunctioning KeyboardYNOK?Keyboardnot operating properly.Externaldeviceworks?Replace

TroubleshootingMaintenance and Service Guide 2–25Flowchart 2.19—Nonfunctioning Pointing DeviceYNOK?Pointing devicenot operatingproperly.Externaldevice

2–26 Maintenance and Service GuideTroubleshootingFlowchart 2.20—No Network/Modem ConnectionYDisconnect allpower fromthe computerand open.No networkor

Maintenance and Service Guide 3–13Illustrated Parts CatalogThis chapter provides an illustrated parts breakdown and a reference for spare part numbers

3–2 Maintenance and Service GuideIllustrated Parts Catalog3.2 Computer Major ComponentsComputer Major Components

Illustrated Parts CatalogMaintenance and Service Guide 3–3Table 3-1Spare Parts: Computer Major ComponentsItem DescriptionSpare Part Number1 Display as

3–4 Maintenance and Service GuideIllustrated Parts CatalogComputer Major Components

Illustrated Parts CatalogMaintenance and Service Guide 3–5Table 3-1Spare Parts: Computer Major Components (Continued)Item DescriptionSpare Part Number

3–6 Maintenance and Service GuideIllustrated Parts CatalogComputer Major Components

ContentsMaintenance and Service Guide v5 Removal and Replacement Procedures5.1 Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Illustrated Parts CatalogMaintenance and Service Guide 3–7Table 3-1Spare Parts: Computer Major Components (Continued)Item DescriptionSpare Part Number

3–8 Maintenance and Service GuideIllustrated Parts CatalogComputer Major Components

Illustrated Parts CatalogMaintenance and Service Guide 3–9Table 3-1Spare Parts: Computer Major Components (Continued)Item DescriptionSpare Part Number

3–10 Maintenance and Service GuideIllustrated Parts CatalogComputer Major Components

Illustrated Parts CatalogMaintenance and Service Guide 3–11Table 3-1Spare Parts: Computer Major Components (Continued)Item DescriptionSpare Part Numbe

3–12 Maintenance and Service GuideIllustrated Parts CatalogComputer Major Components

Illustrated Parts CatalogMaintenance and Service Guide 3–13Table 3-1Spare Parts: Computer Major Components (Continued)Item DescriptionSpare Part Numbe

3–14 Maintenance and Service GuideIllustrated Parts CatalogComputer Major Components

Illustrated Parts CatalogMaintenance and Service Guide 3–15Table 3-1Spare Parts: Computer Major Components (Continued)Item DescriptionSpare Part Numbe

3–16 Maintenance and Service GuideIllustrated Parts Catalog3.3 Plastics Kit

vi Maintenance and Service GuideContents6 SpecificationsAScrew ListingB Software Backup and RecoveryC Display Component RecyclingD Connector Pin Assig

Illustrated Parts CatalogMaintenance and Service Guide 3–17Table 3-2Plastics KitSpare Part Number InformationItem DescriptionSpare Part Number Plastic

3–18 Maintenance and Service GuideIllustrated Parts Catalog3.4 Mass Storage Devices

Illustrated Parts CatalogMaintenance and Service Guide 3–19Table 3-3Mass Storage DevicesSpare Part Number InformationItem DescriptionSpare Part Number

3–20 Maintenance and Service GuideIllustrated Parts Catalog3.5 Miscellaneous (Not Illustrated)Table 3-4Miscellaneous (Not Illustrated)Spare Part Infor

Illustrated Parts CatalogMaintenance and Service Guide 3–21Power cords:For use in the United States 246959-001For use in Australia 246959-011For use i

3–22 Maintenance and Service GuideIllustrated Parts Catalog3.6 Sequential Part Number ListingTable 3-5Sequential Part Number ListingSpare Part Number

Illustrated Parts CatalogMaintenance and Service Guide 3–23375198-001 5400-rpm, 80-GB hard drive for use in External MultiBay II and HP Docking Statio

3–24 Maintenance and Service GuideIllustrated Parts Catalog407575-001 802.11a/b/g GL WLAN module for use in the MOW1 countries listed below:Antigua &a

Illustrated Parts CatalogMaintenance and Service Guide 3–25407575-003 802.11a/b/g GL WLAN module for use in the ROW countries listed below:ChinaEcuado

3–26 Maintenance and Service GuideIllustrated Parts Catalog414042-001 1-DIMM, PC2-4200, 1024 MB memory module414044-001 1-DIMM, PC2-5300, 256 MB memor

Maintenance and Service Guide 1–11Product DescriptionThe HP Compaq nw8440 Notebook PC, HP Compaq nc8430 Notebook PC, and HP Compaq nx8420 Notebook PC

Illustrated Parts CatalogMaintenance and Service Guide 3–27416411-001 15.4-inch, WXGA display assembly (includes wireless antenna transceivers and cab

3–28 Maintenance and Service GuideIllustrated Parts Catalog416416-201 Keyboard with pointing stick for use in Brazil416416-211 Keyboard with pointing

Illustrated Parts CatalogMaintenance and Service Guide 3–29416421-021 90-watt AC adapter417505-001 1-DIMM, PC2-4200, 2048 MB memory module417506-001 1

Maintenance and Service Guide 4–14Removal and ReplacementPreliminariesThis chapter provides essential information for proper and safe removal and repl

4–2 Maintenance and Service GuideRemoval and Replacement Preliminaries4.2 Service ConsiderationsThe following sections include some of the considerati

Removal and Replacement PreliminariesMaintenance and Service Guide 4–34.3 Preventing Damage to Removable DrivesRemovable drives are fragile components

4–4 Maintenance and Service GuideRemoval and Replacement Preliminaries4.4 Preventing Electrostatic DamageMany electronic components are sensitive to e

Removal and Replacement PreliminariesMaintenance and Service Guide 4–54.5 Packaging and Transporting PrecautionsUse the following grounding precaution

4–6 Maintenance and Service GuideRemoval and Replacement Preliminaries4.6 Workstation PrecautionsUse the following grounding precautions at workstatio

Removal and Replacement PreliminariesMaintenance and Service Guide 4–74.7 Grounding Equipment and MethodsGrounding equipment must include either a wri

1–2 Maintenance and Service GuideProduct Description1.1 Fe a t u r e s The following processors, varying by computer model:❏ Intel Core Duo T2600 (2.

4–8 Maintenance and Service GuideRemoval and Replacement PreliminariesTable 4-1 shows how humidity affects the electrostatic voltage levels generated

Maintenance and Service Guide 5–15Removal and ReplacementProceduresThis chapter provides removal and replacement procedures.There are as many as 72 sc

5–2 Maintenance and Service GuideRemoval and Replacement Procedures5.1 Serial NumberReport the computer serial number to HP when requesting informatio

Removal and Replacement ProceduresMaintenance and Service Guide 5–35.2 Disassembly Sequence ChartUse the chart below to determine the section number t

5–4 Maintenance and Service GuideRemoval and Replacement ProceduresSection Description# of Screws Removed5.13 Internal Memory Module 05.14 RTC Battery

Removal and Replacement ProceduresMaintenance and Service Guide 5–55.3 Preparing the Computer for DisassemblyBefore you begin any removal or installat

5–6 Maintenance and Service GuideRemoval and Replacement Procedures5.4 Hard Drive1. Prepare the computer for disassembly (Section 5.3).Hard Drive Spar

Removal and Replacement ProceduresMaintenance and Service Guide 5–72. Loosen the two Phillips PM2.0×5.0 screws 1 that secure the hard drive cover to t

5–8 Maintenance and Service GuideRemoval and Replacement Procedures5. Loosen the Phillips PM2.5×13.0 spring-loaded hard drive retention screw 1.6. Gra

Removal and Replacement ProceduresMaintenance and Service Guide 5–98. Remove the four Phillips PM3.0×3.0 screws 1 that secure the hard drive frame to