Rear Chassis Fan | HP Pro QV985AV specs

Rear Chassis Fan

Description	Spare part number

Rear chassis fan	636922-001

1.Prepare the computer for disassembly (Preparation for Disassembly on page 54).

2.Remove the access panel (Computer Access Panel on page 55).

3.Remove the four silver Phillips screws that secure the fan to the chassis. Figure 6-32Rear fan screws

4.Disconnect the fan control cable (1) from the system board connector labeled CHFAN2.

Rear Chassis Fan 89

Image 98

HP Pro QV985AV manual Rear Chassis Fan, Description Spare part number Rear chassis fan 636922-001

Contents

HP Compaq Business PC Maintenance and Service Guide Page About This Book Table of contents Page Removal and Replacement Procedures Microtower MT Chassis 136 204 217 Product Features Standard Configuration Features Microtower MT Front Panel Components 1Front Panel Components Small Form Factor SFF Front Panel Components 2Front Panel Components Microtower MT Rear Panel Components 3Rear Panel Components Small Form Factor SFF Rear Panel Components 5Rear Panel Components Serial Number Location 6Microtower Serial Number and Product ID Location Activating the Windows operating system Activating and Customizing the SoftwareActivating and customizing the software in Windows Customizing the monitor display Downloading Windows 7 updatesInstalling or upgrading device drivers Downloading Windows 8 updates Click Settings Change PC Settings Computer Setup F10 Utility Computer Setup F10 Utilities Using Computer Setup F10 Utilities 1Computer Setup F10 Utility Computer Setup-File 2Computer Setup-File Sata Defaults Computer Setup-Storage3Computer Setup-Storage OptionDescription Sata Emulation Removable Media BootStorage Options ESATA Port Max eSATA Speed DPS Self-Test Boot OrderShortcut to Temporarily Override Boot Order Computer Setup-Security 4Computer Setup-Security USB Security Network BootDevice Security Slot Security Security System Security DriveLock Security Secure BootConfiguration Computer Setup-Power 5Computer Setup-Power Option Heading Power-On Options Computer Setup-Advanced6Computer Setup-Advanced for advanced users Bus Options Bios Power-OnOnboard Devices Device Options AMT Configuration Recovering the Configuration SettingsVGA Configuration Computer major components Illustrated parts catalogMicrotower MT chassis spare parts Intel Core i7 processor Access panelPower supply Intel Core i5 processors Intel Celeron processors CablesDescription Spare part number Misc parts ESATA port assembly, PCI card not illustrated Fan duct assemblyUSB powered speakers not illustrated Description Spare part number Rear chassis fan Description Spare part number Hard drive DrivesMisc boards Optical drive Sequential part number listing Spare part Description Number Illustrated parts catalog Microtower MT chassis spare parts Illustrated parts catalog Small Form Factor SFF chassis spare parts Description Spare part number Front bezel Description Spare part number Cables Misc parts Drive adapter not illustrated Drives Sequential part number listing Illustrated parts catalog Small Form Factor SFF chassis spare parts Illustrated parts catalog Relative Humidity Event 55% 40% 10% Electrostatic Discharge InformationGenerating Static Static Shielding Protection Levels Preventing Electrostatic Damage to EquipmentPersonal Grounding Methods and Equipment Method Voltage Grounding the Work Area Recommended Materials and Equipment Operating Guidelines General Cleaning Safety PrecautionsCleaning the Computer Case Routine Care Cleaning the Keyboard Cleaning the Monitor Power Supply Fan Service ConsiderationsCleaning the Mouse Tools and Software Requirements Hard Drives Cables and ConnectorsLithium Coin Cell Battery Smart ATA Drives Sata Hard DrivesSata Hard Drive Cables Cable ManagementPage Removal and Replacement Procedures Microtower MT Chassis Preparation for Disassembly Computer Access Panel Description Spare part number Access panel 646825-001 Remove the access panel Computer Access Panel on Front Bezel Front Bezel Security Page Bezel Blanks 5Removing a Bezel Blank Bezel Blanks DDR3-SDRAM DIMMs MemoryDIMMs Populating Dimm Sockets Installing DIMMs Page Expansion Cards Page Page Page 1System Board Connections System Board Connector System Board Label Color ComponentSystem Board Connections Drives Media Guide Screw Device Drive Positions 2Drive Positions Removing a 5.25-inch or 3.5-inch Drive from a Drive Bay Installing a 5.25-inch or 3.5-inch Drive into a Drive Bay 16Removing the DrivesPage Page Installing a Hard Drive into an Internal Drive Bay Removing a Hard Drive from a Drive BayPage Page Page Front Fan Assembly Description Spare part number Front fan assembly 585884-001Page Front I/O Assembly Description Spare part number Front I/O assembly 646827-001 Power Switch/LED Assembly Heat sink Description Spare part number Heat sink 645326-001Page Processor Description Spare part number Intel Core i7 processorPage Page Speaker Description Spare part number Speaker 645330-001 Rear Chassis Fan Description Spare part number Rear chassis fan 636922-001Page Power Supply Page System Board Preparation for Disassembly Access Panel Description Spare part number Access panel 646815-001 Description Spare part number Front bezel 687950-001 Front Bezel Security Page 5Removing a bezel blank Replace the front bezel Bezel Blanks Memory Installing DIMMs Page Expansion Card Page Page Page Black Unused Power X4PCIEXP Installing and Removing Drives 13Drive Positions Removing a 5.25-inch Drive from a Drive Bay Installing a 5.25-inch Drive into a Drive Bay Page Page Removing a 3.5-inch Drive from a Drive Bay Installing a 3.5-inch Drive into a Drive Bay Page 24Removing the Hard Drive Drives Page Fan duct Description Spare part number Fan duct 636921-001 Description Spare part number Front fan 645327-001 Page Hood Sensor Description Spare part number Hood sensor 638816-001 Front I/O, Power Switch Assembly Remove the chassis fan Front Fan Assembly onPage Description Spare part number Speaker 636925-001 Heat sink Page Processor Page Page Power Supply Page System Board Page Using the Small Form Factor Computer in a Tower Orientation Troubleshooting Without Diagnostics Safety and Comfort Before You Call for Technical Support Helpful Hints Refer to Helpful Hints on page 137 in this guidePage Computer date and time display is incorrect Cause Solution Solving General Problems1Solving General Problems Computer will not respond to keyboard or mouse Cause Poor performance Cause Solution There is no sound or sound volume is too low Cause SolutionCannot remove computer cover or access panel Cause Advanced Device Options All apps icon Under Windows System, click Run Cause Solution Power supply shuts down intermittently Cause Solution Solving Power Problems2Solving Power Problems Some models, is set to the appropriate voltage. Proper Solving Hard Drive Problems 3Solving Hard Drive Problems Storage Boot Order Nonsystem disk/NTLDR missing message Cause SolutionComputer will not boot from hard drive Cause Solution Device Configuration Computer seems to be locked up Cause Solution Can not write to the media card Cause Solving Media Card Reader Problems4Solving Media Card Reader Problems Computer’s software is used to safely eject the card Blank screen no video Cause Solution Solving Display Problems5Solving Display Problems Adjust screen resolution Dim characters Cause Solution Select ImageControl/ Horizontal Position or Vertical Image is not centered Cause SolutionNo Connection, Check Signal Cable displays on screen Cause Out of Range displays on screen Cause Certain typed symbols do not appear correct Cause Solving Audio Problems 6Solving Audio Problems Line-in jack is not functioning properly Cause Sound from headphones is not clear or muffled CauseThere is no sound or sound volume is too low Cause Printer will not print Cause Solution Solving Printer Problems7Solving Printer Problems Printer will not turn on Cause Solution Printer prints garbled information Cause Solution Solving Keyboard and Mouse Problems 8Solving Keyboard Problems 9Solving Mouse Problems Enter Control Panel , and then select Device Manager Solving Hardware Installation Problems10Solving Hardware Installation Problems Security USB Security Computer will not start Cause Solution Solving Network Problems 11Solving Network Problems Network status link light never flashes Cause Solution Manager Diagnostics reports a failure Cause Solving Memory Problems Memory count during Post is wrong Cause Solution 12Solving Memory ProblemsOut of memory error Cause Solution Insufficient memory error during operation Cause Solution 13Solving Processor Problems Solving Processor ProblemsSolving CD-ROM and DVD Problems 14Solving CD-ROM and DVD Problems Security Network Boot Movie will not play in the DVD drive Cause Solution Solving USB Flash Drive Problems Cannot eject compact disc tray-load unit Cause System will not boot from USB flash drive Cause Solution 15Solving USB Flash Drive ProblemsUSB flash drive not found identified Cause Solution Ports are set to Enabled in Security USB Security Solving Front Panel Component ProblemsSolving Internet Access Problems Unable to connect to the Internet Cause Solution Select Start Control Panel Click Internet Options Solving Software Problems Solving Software Problems Contacting Customer Support Post Error Messages Post Numeric Codes and Text Messages 1Numeric Codes and Text Messages Post Numeric Codes and Text Messages Verify monitor is attached and turned Replace diskette drive Select File Save Changes and Exit Test under Storage DPS Self-testOptions Sata Emulation to IDE, Security Drivelock Security. For each Post Numeric Codes and Text Messages Bios ME firmware upgrading. a failure has 2Diagnostic Front Panel LEDs and Audible Codes Activity Beeps Possible Cause Recommended Action Desktop Management Guide for more 2Diagnostic Front Panel LEDs and Audible Codes Password Security and Resetting Cmos Resetting the Password Jumper Clearing and Resetting the Cmos Cmos button How to access and run HP PC Hardware Diagnostics HP PC Hardware DiagnosticsWhy run HP PC Hardware Diagnostics Uefi Downloading HP PC Hardware Diagnostics to a USB device System Restore Backup and RecoveryRestoring and recovering in Windows System Recovery System Recovery when Windows is responding System Recovery when Windows is not responding Creating recovery media Using recovery media Backup and recovery in Windows Backing up your information Performing a system recovery Using the Windows recovery tools Using f11 recovery tools Battery Replacement Type Page Removing and Replacing a Removable 3.5-inch Sata Hard Drive Page Figure B-5Replacing the Hard Drive 209 Page Page Unlocking the Smart Cover Lock Smart Cover FailSafe KeyPage Page General Requirements Power Cord Set RequirementsJapanese Power Cord Requirements Country-Specific Requirements Country Accrediting Agency Table E-1Specifications SpecificationsMT Specifications Standard Efficiency High Efficiency Rated Input Current SFF SpecificationsTable E-2Specifications Symbols/Numerics Index SFF Page Sata SFF