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HP D3K21UT#ABA Front Fan Assembly, Description Spare part number Front fan assembly 636922-001

Models: D8C84UT#ABA D3K21UT#ABA D3K19UT D3K19UT#ABA Pro 4300 C9H69UT#ABA Pro 4300 B8T87UT B8T87UT#ABA Pro 4300 B5P90UT#ABA Pro 4300 C9H67UT#ABA

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Front Fan Assembly

Description	Spare part number

Front fan assembly	636922-001

The front fan assembly is attached to the front of the chassis.

1.Prepare the computer for disassembly (Preparation for Disassembly on page 37).

2.Remove the access panel (Computer Access Panel on page 39).

3.Remove the front bezel (Front Bezel on page 40).

4.Remove the baffle (Baffle on page 69).

5.Disconnect the fan cable from the red/brown system board connector labeled CHFAN.

6.Press the two tabs (left, bottom) that secure the fan assembly to the chassis front. Figure 7-42Front fan tab locations

7.Pull the assembly toward the rear of the unit, and then lift it out of the chassis. Figure 7-43Removing the front fan

To install the front fan, reverse the removal procedure. Be sure to orient the air flow into the unit.

70 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

Image 78

HP D3K21UT#ABA, D8C84UT#ABA manual Front Fan Assembly, Description Spare part number Front fan assembly 636922-001

Contents

Maintenance and Service Guide HP Compaq Pro 4300 Small Form Factor Business PC About This Book Iii Iv About This Book Table of contents Illustrated parts catalog Safety and Comfort Vii 105 Choosing recovery media 146 Creating recovery media103 108 Product Features Standard Configuration Features Product Features Front Panel Components1Front Panel Components Rear Panel Components 2Rear Panel Components 4Serial Number and Product ID Location Product Features Serial Number Location Installing and Customizing the Software Installing the Windows Operating SystemDownloading Microsoft Windows Updates Installing or Upgrading Device Drivers Windows systems Customizing the Monitor Display Windows systemsLaunching Windows XP from Windows Accessing Disk Image ISO Files Computer Setup F10 Utility Computer Setup F10 Utilities Using Computer Setup F10 Utilities Computer Setup-File Computer Setup F10 Utility1Computer Setup-File Computer Setup-Storage 2Computer Setup-Storage Computer Setup-Security 3Computer Setup-Security System IDs System Security Option Description Hardware Power Computer Setup-Power4Computer Setup-Power Management Option Heading Power-On Options Computer Setup-Advanced5Computer Setup-Advanced Bios Power-On Bus Options Device Options Sata Hard Drives Serial ATA Sata Drive Guidelines and FeaturesSerial ATA Hard Drive Characteristics Sata Hard Drive Cables Serial ATA Sata Drive Guidelines and Features Smart ATA DrivesHard Drive Capacities Chassis Designations Small Form Factor SFF Preventing Electrostatic Damage to Equipment Electrostatic Discharge InformationGenerating Static Relative Humidity Event 55% 40% 10% Recommended Materials and Equipment Personal Grounding Methods and EquipmentGrounding the Work Area Static Shielding Protection Levels Operating Guidelines Cleaning the Keyboard General Cleaning Safety PrecautionsCleaning the Computer Case Routine Care Cleaning the Mouse Service ConsiderationsCleaning the Monitor Power Supply Fan Screws Cables and ConnectorsTools and Software Requirements Hard Drives Lithium Coin Cell Battery Computer major components Illustrated parts catalogSpare parts This chapter provides parts information for the chassis Illustrated parts catalog Description Spare part number Optical drives Expansion cardsKeyboard Sequential part number listing Spare parts Illustrated parts catalog Spare parts Illustrated parts catalog Spare parts Illustrated parts catalog Preparation for Disassembly 1Serial Number and Product ID LocationPage Computer Access Panel Description Spare part number Access panel 636924-001 Front Bezel Description Spare part number Front bezel 695080-001 Bezel Blanks 4Removing a Bezel Blank Replace the front bezel Bezel Blanks System Board Connector System Board Label Color Component System Board Connections1System Board Connections Installing Additional Memory DIMMsDDR3-SDRAM DIMMs Installing DIMMs Populating Dimm SocketsPage Removing or Installing an Expansion Card Remove the access panel Computer Access Panel on Page Page Page Page Page Cable Management Drives Drive cables Installing and Removing Drives Drive Positions2Drive Positions 3Extra Mounting Screws Mounting Screw Device Removing an Internal 5.25-inch Drive Rotate the drive cage back down to its normal position Installing an Optical Drive into the 5.25-inch Drive Bay Page Removing an Internal 3.5-inch Drive Page Installing a Drive into the 3.5-inch Internal Drive Bay Page Page Remove the access panel Computer Access Panel on 39Installing Hard Drive Mounting Screws Drives Page Baffle Description Spare part number Baffle 636921-001 Front Fan Assembly Description Spare part number Front fan assembly 636922-001 Front I/O, Power Switch Assembly Remove the front bezel Front Bezel on Speaker Description Spare part number Speaker 636925-001 Heat sink Description Spare part number Heat sink 636919-001Page Page Processor Page Power Supply Pwrcmd 4Power supply cable system board connector Power supply connector label System board connector System Board Page Battery Type 1 Battery Holder Type 2 Battery HolderLift the battery out of its holder Type 3 Battery Holder Using the Small Form Factor Computer in a Tower Orientation Installing a Security Lock HP/Kensington MicroSaver Security Cable Lock 57Installing a Padlock Installing a Security Lock Padlock Front Bezel Security Page Power Cord Set Requirements Japanese Power Cord RequirementsGeneral Requirements Country-Specific Requirements Country Accrediting Agency Post Error Messages Table B-1Numeric Codes and Text Messages Post Numeric Codes and Text MessagesPost Numeric Codes and Text Messages Control panel message Description Recommended action Table B-2Diagnostic Front Panel LEDs and Audible Codes Activity Blinks Possible Cause Activity Blinks Possible Cause Recommended Action Troubleshooting Without Diagnostics Safety and Comfort Before You Call for Technical Support Helpful Hints Page Table C-1Solving General Problems Solving General ProblemsSolving General Problems Computer date and time display is incorrect Cause Solution There is no sound or sound volume is too low Cause Solution Cannot remove computer cover or access panel CausePoor performance is experienced Cause Solution Run Windows XP, Start Accessories Run Cause Solution Appendix C Troubleshooting Without Diagnostics Table C-2Solving Power Problems Solving Power ProblemsSolving Power Problems Power supply shuts down intermittently Cause Solution Usdt power supply adapter must be at 135W and use Solving Hard Drive Problems Solving Hard Drive ProblemsTable C-3Solving Hard Drive Problems Nonsystem disk/NTLDR missing message Cause Solution Computer will not boot from hard drive Cause SolutionStorage Boot Order Computer seems to be locked up Cause Removable hard drive is not recognized by the computer Cause Solving Media Card Reader Problems Table C-4Solving Media Card Reader ProblemsCan not write to the media card Cause Solving Media Card Reader Problems Blank screen no video Cause Solution Solving Display ProblemsTable C-5Solving Display Problems Personalization, select Adjust screen Solving Display Problems No Connection, Check Signal Cable displays on screen Cause Dim characters Cause SolutionImage is not centered Cause Solution Select ImageControl/ Horizontal Position or Vertical Out of Range displays on screen Cause Clicking noise coming from inside a CRT monitor Cause Certain typed symbols do not appear correct Cause Solution Symbol. Click Start All Programs Accessories Solving Audio Problems Solving Audio ProblemsTable C-6Solving Audio Problems Sound from headphones is not clear or muffled Cause Advanced Device Options Internal SpeakerLine-in jack is not functioning properly Cause Solving Printer Problems Solving Printer ProblemsTable C-7Solving Printer Problems Printer prints garbled information Cause Solution Printer is offline Cause Solution Table C-8Solving Keyboard Problems Solving Keyboard and Mouse ProblemsSolving Keyboard and Mouse Problems Table C-9Solving Mouse Problems Appendix C Troubleshooting Without Diagnostics Table C-10Solving Hardware Installation Problems Solving Hardware Installation ProblemsSolving Hardware Installation Problems Computer will not start Cause Solution Appendix C Troubleshooting Without Diagnostics Solving Network Problems Solving Network ProblemsTable C-11Solving Network Problems Network status link light never flashes Cause Solution Diagnostics reports a failure Cause Solution New network card will not boot Cause Solution Out of memory error Cause Solution Solving Memory ProblemsTable C-12Solving Memory Problems Memory count during Post is wrong Cause Solution Solving Memory Problems Insufficient memory error during operation Cause Solution Some fans only operate when needed Solving Processor ProblemsTable C-13Solving Processor Problems Make sure the processor heat sink is installed properly Table C-14Solving CD-ROM and DVD Problems Solving CD-ROM and DVD ProblemsSolving CD-ROM and DVD Problems Mode in Security Password Options Movie will not play in the DVD drive Cause Solution Cannot eject compact disc tray-load unit Cause Solving USB Flash Drive Problems Solving USB Flash Drive ProblemsTable C-15Solving USB Flash Drive Problems Solving Front Panel Component Problems Table C-16Solving Front Panel Component Problems Solving Internet Access Problems Solving Internet Access ProblemsTable C-17Solving Internet Access Problems Cannot automatically launch Internet programs Cause Click on System and Maintenance Double-clickAgere Systems PCI-SV92PP SoftModem Solving Software Problems Table C-18Solving Software Problems Password Security and Resetting Cmos Resetting the Password Jumper Clearing and Resetting the Cmos Figure D-1 Cmos buttonPage Drive Protection System DPS Accessing DPS Through Computer Setup Select Storage DPS Self-Test System Recovery System Recovery at system startup System Recovery optionsSystem Recovery from the Windows 7 Start Menu Appendix F System Recovery System Recovery from recovery media Creating recovery media Recovery mediaChoosing recovery media To create recovery discs Close all open programsPage Specifications Appendix G SpecificationsTable G-1Specifications 149 Index Cmos DVI-D VGA Connectors on system board Sata