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HP Pro QV985AV manual Description Spare part number Fan duct 636921-001

Models: Pro QV985AV

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Fan duct

Description	Spare part number

Fan duct	636921-001

The fan duct sits between the front fan and the heat sink.

1.Prepare the computer for disassembly (Preparation for Disassembly on page 94).

2.Remove the access panel (Access Panel on page 95).

3.Lift the fan duct straight up out of the chassis. Figure 7-27Removing the fan duct

To install the fan duct, reverse the removal procedure.

Fan duct 119

Image 128

HP Pro QV985AV manual Description Spare part number Fan duct 636921-001

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 FeaturesMicrotower MT Front Panel Components 1Front Panel ComponentsSmall Form Factor SFF Front Panel Components 2Front Panel ComponentsMicrotower MT Rear Panel Components 3Rear Panel ComponentsSmall Form Factor SFF Rear Panel Components 5Rear Panel ComponentsSerial Number Location 6Microtower Serial Number and Product ID LocationActivating 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 SettingsComputer Setup F10 Utility Computer Setup F10 UtilitiesUsing Computer Setup F10 Utilities 1Computer Setup F10 UtilityComputer Setup-File 2Computer Setup-FileComputer Setup-Storage 3Computer Setup-StorageSata Defaults OptionDescriptionRemovable Media Boot Storage Options ESATA PortSata Emulation Max eSATA SpeedDPS Self-Test Boot OrderShortcut to Temporarily Override Boot Order Computer Setup-Security 4Computer Setup-SecurityNetwork Boot Device SecurityUSB Security Slot SecuritySecurity System Security DriveLock Security Secure BootConfiguration Computer Setup-Power 5Computer Setup-PowerOption Heading Power-On Options Computer Setup-Advanced6Computer Setup-Advanced for advanced users Bios Power-On Onboard DevicesBus Options Device OptionsAMT Configuration Recovering the Configuration SettingsVGA Configuration Computer major components Illustrated parts catalogMicrotower MT chassis spare parts Access panel Power supplyIntel Core i7 processor Intel Core i5 processorsIntel Celeron processors CablesDescription Spare part number Misc parts Fan duct assembly USB powered speakers not illustratedESATA port assembly, PCI card not illustrated Description Spare part number Rear chassis fanDrives Misc boardsDescription Spare part number Hard drive Optical driveSequential part number listing Spare part Description NumberIllustrated parts catalog Microtower MT chassis spare parts Illustrated parts catalog Small Form Factor SFF chassis spare parts Description Spare part number Front bezelDescription 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 Preventing Electrostatic Damage to Equipment Personal Grounding Methods and EquipmentStatic Shielding Protection Levels Method VoltageGrounding the Work Area Recommended Materials and EquipmentGeneral Cleaning Safety Precautions Cleaning the Computer CaseOperating Guidelines Routine CareCleaning the Keyboard Cleaning the MonitorService Considerations Cleaning the MousePower Supply Fan Tools and Software RequirementsHard Drives Cables and ConnectorsLithium Coin Cell Battery Sata Hard Drives Sata Hard Drive CablesSmart ATA Drives Cable ManagementPage Removal and Replacement Procedures Microtower MT Chassis Preparation for DisassemblyComputer Access Panel Description Spare part number Access panel 646825-001Remove the access panel Computer Access Panel on Front BezelFront Bezel Security Page Bezel Blanks 5Removing a Bezel Blank Bezel BlanksMemory DIMMsDDR3-SDRAM DIMMs Populating Dimm SocketsInstalling DIMMs Page Expansion Cards Page Page Page 1System Board Connections System Board Connector System Board Label Color ComponentSystem Board Connections Drives Media Guide Screw DeviceDrive Positions 2Drive PositionsRemoving 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 646827-001Power 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 645330-001Rear 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 646815-001Description 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 PositionsRemoving 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 636921-001Description Spare part number Front fan 645327-001 Page Hood Sensor Description Spare part number Hood sensor 638816-001Front 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 SupportHelpful Hints Refer to Helpful Hints on page 137 in this guidePage Solving General Problems 1Solving General ProblemsComputer date and time display is incorrect Cause Solution Computer will not respond to keyboard or mouse CauseThere is no sound or sound volume is too low Cause Solution Cannot remove computer cover or access panel CausePoor performance Cause Solution Advanced Device OptionsAll apps icon Under Windows System, click RunCause 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 ProblemsNonsystem disk/NTLDR missing message Cause Solution Computer will not boot from hard drive Cause SolutionStorage Boot Order Device ConfigurationComputer 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 Solving Display Problems 5Solving Display ProblemsBlank screen no video Cause Solution Adjust screen resolutionDim 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 ProblemsLine-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 Solving Printer Problems 7Solving Printer ProblemsPrinter will not print Cause Solution Printer will not turn on Cause SolutionPrinter prints garbled information Cause Solution Solving Keyboard and Mouse Problems 8Solving Keyboard Problems9Solving Mouse Problems EnterSolving Hardware Installation Problems 10Solving Hardware Installation ProblemsControl Panel , and then select Device Manager Security USB SecurityComputer will not start Cause Solution Solving Network Problems 11Solving Network ProblemsNetwork status link light never flashes Cause Solution ManagerDiagnostics reports a failure Cause Solving Memory Problems 12Solving Memory Problems Out of memory error Cause SolutionMemory count during Post is wrong Cause Solution Insufficient memory error during operation Cause SolutionSolving Processor Problems Solving CD-ROM and DVD Problems13Solving Processor Problems 14Solving CD-ROM and DVD ProblemsSecurity Network Boot Movie will not play in the DVD drive Cause SolutionSolving USB Flash Drive Problems Cannot eject compact disc tray-load unit CauseSystem will not boot from USB flash drive Cause Solution 15Solving USB Flash Drive ProblemsUSB flash drive not found identified Cause Solution Solving Front Panel Component Problems Solving Internet Access ProblemsPorts are set to Enabled in Security USB Security Unable to connect to the Internet Cause SolutionSelect Start Control Panel Click Internet OptionsSolving Software Problems Solving Software Problems Contacting Customer Support Post Error Messages Post Numeric Codes and Text Messages 1Numeric Codes and Text MessagesPost Numeric Codes and Text Messages Verify monitor is attached and turned Replace diskette drive Test under Storage DPS Self-test Options Sata Emulation to IDE,Select File Save Changes and Exit Security Drivelock Security. For eachPost 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 CmosResetting 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 Backup and Recovery Restoring and recovering in WindowsSystem Restore System RecoverySystem 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 informationPerforming a system recovery Using the Windows recovery toolsUsing 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 AgencyTable E-1Specifications SpecificationsMT Specifications Standard Efficiency High EfficiencyRated Input Current SFF SpecificationsTable E-2Specifications Symbols/Numerics IndexSFF Page Sata SFF