HP 550 manual Description Spare part number Fan 431312-001

Page 78

Fan

Description

Spare part number

 

 

Fan

431312-001

 

 

Before removing the fan, follow these steps:

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 from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer.

4.Remove the battery (see Battery on page 39).

5.Remove the following components:

a.Hard drive (see Hard drive on page 40)

b.Optical drive (see Optical drive on page 46)

c.Keyboard (see Keyboard on page 50)

d.Switch cover (see Switch cover on page 48)

e.Speaker (see Speaker on page 53)

f.Display lid switch module (see Display lid switch module on page 54)

g.Display assembly (see Display assembly on page 55)

h.Top cover (see Top cover on page 60)

i.System board (see System board on page 66)

Remove the fan:

1.Remove the two Phillips PM2.5×7.0 screw s(1) that secures the fan to the base enclosure.

70 Chapter 4 Removal and replacement procedures

Image 78
Contents HP 550 Notebook PC Page Safety warning notice Iv Safety warning notice Table of contents Computer Setup Screw listing Recycling Product description Hard drives Optical drivesAudio Wireless Integrated Wlan options by way of wireless moduleDiskette drive ModemPorts Power requirementsOperating system Preinstalled Keyboard/pointingRestore media Serviceability End-user replaceable partsTouchPad External component identificationTop components Component FunctionButtons, lights, and speaker Top componentsKeys Fn keyFront components Right-side components Left-side components Bottom components Wireless antennae select models only Illustrated parts catalog Serial number locationComputer major components Computer major componentsDisplay assembly internal components Description Spare part numberKeyboards Optical drive connector board FanIntel Core2 Duo processors RTC batteryBattery Intel Celeron M processorsIntel 802.11a/b/g Wlan modules Intel 802.11b/g Wlan module for use in ThailandBroadcom 802.11b/g Wlan modules Illustrated parts catalog Plastics Kit Item Description Spare part number Plastics Kit 456614-001Cable Kit Item Description Spare part number Cable Kit 456594-001Mass storage devices Miscellaneous parts Sequential part number listing Screw KitSpare part Description Number Ukraine, the United Kingdom, and Uzbekistan Zaire, Zambia, and Zimbabwe Illustrated parts catalog Sequential part number listing Pata Service considerations Removal and replacement proceduresPreliminary replacement requirements Tools requiredCables and connectors Grounding guidelines Typical electrostatic voltage levelsEvent 10% 40% 55% Packaging and transporting guidelines Equipment guidelines Material Use Voltage protection levelUnknown user password Component replacement procedures Serial numberComputer feet Battery Hard drive Page Wlan module Description Spare part number Page Memory module Optical drive Page Switch cover Page Keyboard For use Spare part numberPage Page Speaker Description Spare part number Speaker 456593-001Display lid switch module Display assembly Page Page Page Page Top cover Description Spare part number Top cover 495399-001Page Page TouchPad board and TouchPad button board Page Bluetooth module System board Page Page Page Fan Description Spare part number Fan 431312-001Page Heat sink Page Processor Page Modem module Page RTC battery Description Spare part number RTC battery 449137-001ExpressCard assembly Page Computer Setup Starting Computer SetupUsing Computer Setup Navigating and selecting in Computer SetupRestoring factory settings in Computer Setup Computer Setup menus File menuSelect To do this Diagnostics menu Security menuSystem Configuration menu DisableSelect Disconnected Specifications Computer specificationsMetric Inch, Wxga display specifications Hard drive specifications 250-GB 160-GB 120-GBApplicable disc Read Access timeTransfer mode WriteDVD/CD-RW Combo Drive specifications Applicable disc Read WriteSystem DMA specifications Hardware DMA System functionSystem interrupt specifications Hardware IRQ System functionSystem I/O address specifications Address hex System function shipping configurationVGA System memory map specifications Size Memory address System functionScrew listing Phillips PM2.0×5.0 captive screw Color Quantity Length Thread Head diameter BlackPhillips PM2.5×12.0 captive screw Color Quantity Length Thread Head diameter Silver 12.0 mmPhillips PM3.0×4.0 screw Color Quantity Length Thread Head diameter SilverPhillips PM2.5×4.0 screw Slotted Torx ST8M2.5×7.0 screw Page Phillips PM2.0×4.0 screw Page Torx T8M2.5×9.0 screw Torx T8M2.5×3.0 broadhead screw Torx T8M2.5×4.0 screw Page Phillips PM2.0×2.0 broadhead screw Torx T8M2.5×6.0 screw Color Quantity Length Thread Heat width BlackPhillips PM2.0×6.0 screw Torx T8M2.0×4.0 screw Phillips PM2.5×7.0 screw Phillips PM2.5×7.0 captive screw Phillips PM2.5×10.0 captive screw Color Quantity Length Thread Head diameter Silver 10.0 mmPhillips PM2.0×8.0 screw Backup and recovery Backup and recovery in Windows Vista OverviewBacking up your information Performing a recovery Using the Windows recovery toolsUsing f11 Select Repair your computer Backup and Recovery in Windows XP Recovering your information Audio-out headphone Connector pin assignmentsPin Signal Audio-in microphoneExternal monitor RJ-11 modem RJ-45 network Universal Serial BusPower cord set requirements Requirements for all countries and regionsRequirements for specific countries and regions Country/region Accredited agency Applicable note numberBattery RecyclingDisplay Page Page Page Page Page Index Page Page DVD
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