Hood Sensor | HP 8300e D8C26UTABA instruction

Hood Sensor

Description	Spare part number

Hood sensor	638816-001

The hood sensor is attached in a slot in the rear of the chassis.

1.Prepare the computer for disassembly (Preparation for Disassembly on page 160).

2.Remove the access panel (Access Panel on page 161).

3.Unplug the sensor cable from the system board connector labeled HSENSE (1).

4.Slide the hood sensor straight out of the notch in the chassis (2).

NOTE: A flat blade screwdriver can be used to push the hood sensor out of the slot.

Figure 8-31Removing the hood sensor from the chassis fan

To install the hood sensor, reverse the removal procedure.

190 Chapter 8 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

Image 201

HP 8300e D8C26UTABA manual Hood Sensor

Contents

HP Compaq Business PC Maintenance and Service Guide First Edition May Document Part Number About This Book Table of contents Illustrated parts catalog 101 119 165 248 304 Xii Standard Configuration Features Product Features 3Small Form Factor Configuration 1Front Panel Components Convertible Minitower CMT Front Panel Components 2Front Panel Components Microtower MT Front Panel Components 3Front Panel Components Small Form Factor SFF Front Panel Components 4Front Panel Components Ultra-Slim Desktop Usdt Front Panel Components 5Rear Panel Components Convertible Minitower CMT Rear Panel Components 6Rear Panel Components Microtower MT Rear Panel Components 10Rear Panel Components Small Form Factor SFF Rear Panel Components 7Rear Panel Components Ultra-Slim Desktop Usdt Rear Panel Components Serial Number Location 14Small Form Factor Serial Number and Product ID Location Downloading Microsoft Windows Updates Installing the Windows Operating System Accessing Disk Image ISO Files Installing or Upgrading Device Drivers Windows systemsCustomizing the Monitor Display Windows systems Launching Windows XP from WindowsPage Computer Setup F10 Utilities Computer Setup F10 Utility 1Computer Setup F10 Utility Using Computer Setup F10 Utilities 2Computer Setup-File Computer Setup-File 3Computer Setup-Storage Computer Setup-StorageSata Defaults OptionDescription Storage Options Removable Media BootSata Emulation Max eSATA Speed some models Boot Order Shortcut to Temporarily Override Boot OrderDPS Self-Test 4Computer Setup-Security Computer Setup-Security Device Security Network BootUSB Security Slot Security Master Boot Record System IDsSecurity DriveLock Security System Security 5Computer Setup-Power Computer Setup-Power 6Computer Setup-Advanced for advanced users Computer Setup-AdvancedOption Heading Power-On Options Bios Power-On Device Options Bus Options Recovering the Configuration Settings VGA ConfigurationAMT Configuration Computer system components Convertible minitower CMT chassis spare parts Description Spare part number Access panel Power supplyFront bezel Cables Misc parts Drives Misc boards Sequential part number listingSpare part Description Number Illustrated parts catalog Convertible minitower CMT chassis spare parts Microtower MT chassis spare parts Computer major componentsDescription Spare part number Front bezel Microtower MT chassis spare parts Cables Misc parts Antenna Wlan not illustrated 583345-001 Misc boards Illustrated parts catalog Microtower MT chassis spare parts Illustrated parts catalog Small Form Factor SFF chassis spare parts Description Spare part number Cables Misc parts Chassis stand Rubber foot Drives Sequential part number listing Illustrated parts catalog Small Form Factor SFF chassis spare parts AC adapter Ultra-Slim Desktop Usdt chassis spare parts 689372-001 Not illustrated Fan, rear 691352-001 625256-001 Front I/O panel Description Spare part number Card readerRear port cover Chassis fan, front Drives Ultra-Slim Desktop Usdt chassis spare parts Illustrated parts catalog Electrostatic Discharge Information Generating StaticRelative Humidity Event 55% 40% 10% Personal Grounding Methods and Equipment Preventing Electrostatic Damage to EquipmentStatic Shielding Protection Levels Method Voltage Recommended Materials and Equipment Grounding the Work Area Cleaning the Computer Case General Cleaning Safety PrecautionsOperating Guidelines Routine Care Cleaning the Monitor Cleaning the Keyboard Cleaning the Mouse Service ConsiderationsPower Supply Fan Tools and Software Requirements Cables and Connectors Lithium Coin Cell BatteryHard Drives Sata Hard Drive Cables Sata Hard DrivesSmart ATA Drives Cable Management Hard Drive Capacities Preparation for Disassembly Description Spare part number Access panel 646819-001 Access Panel Front Bezel Front Bezel Security Page 5Removing Bezel Blanks from the Subpanel Desktop Shown Bezel Blanks System Board Connector System Board Label Color Component System Board Connections1System Board Connections Memory DIMMsDDR3-SDRAM DIMMs Populating Dimm Sockets Installing DIMMs Expansion Card 9Removing an Expansion Slot Cover Expansion Card Page Page Drives 2Drive Positions Drive Positions Removing a Drive from a Drive Bay Page Page 18Removing a Hard Drive from the Upper Bay Drives Media Installing Drives Guide Screw Device 19Extra Guide Screw Locations Installing a 5.25-inch Drive into a Drive Bay Page Installing a Hard Drive into an Internal Drive Bay 24Securing the Drive in the Adapter Bracket Drives Page 27Installing a Hard Drive into the Lower Two Bays Drives Page Description Spare part number Hood sensor 638816-001 Hood Sensor Front I/O, USB Assembly Page Power Switch Assembly Description Spare part number Speaker 645330-001 Speaker Description Spare part number Rear chassis fan 643908-001 Rear Chassis Fan Description Spare part number Fan sink 643907-001 Fan sinkPage Description Spare part number Intel Core i7 processor ProcessorIntel Core i5 processors Intel Core i3 processorsPage Secure the locking lever Power Supply 39Removing the system board System Board System Board Changing from a Minitower to a Desktop Configuration Page Changing from a Desktop to a Minitower Configuration Page Page Removal and Replacement Procedures Microtower MT Chassis Description Spare part number Access panel 646825-001 Computer Access Panel Remove the access panel Computer Access Panel on Front Bezel Security Page Bezel Blanks Memory Installing DIMMs Expansion Cards Remove the access panel Computer Access Panel on 8Removing an Expansion Slot Cover Expansion Cards Page Page Page SATAPWR1 Black USB Device, such as a Media Card Reader Hood Sensor Drives 14Extra Guide Screw Locations 15Drive Positions Removing a 5.25-inch or 3.5-inch Drive from a Drive BayPage 19Sliding the Drives into the Drive Cage Installing a 5.25-inch or 3.5-inch Drive into a Drive BayPage Removing a Hard Drive from a Drive Bay Installing a Hard Drive into an Internal Drive BayPage Page Description Spare part number Front fan assembly 585884-001 Front Fan AssemblyPage Description Spare part number Front I/O assembly 646827-001 Front I/O Assembly Power Switch/LED Assembly Description Spare part number Heat sink 645326-001 Heat sinkPage Processor Page Page Speaker Description Spare part number Rear chassis fan 636922-001 Page Power Supply Page System Board Page Preparation for Disassembly Description Spare part number Access panel 646815-001 Front Bezel Front Bezel Security Page 5Removing a bezel blank Replace the front bezel Bezel Blanks Memory Installing DIMMs Page Expansion Card Page Page Page Page 13System Board Connections 14Drive Positions Drives 2Drive Positions 15Extra Guide Screw Locations Installing and Removing Drives Removing a 5.25-inch Drive from a Drive Bay 16Removing the 5.25-inch Drive Page Removing a 3.5-inch Drive from a Drive Bay Installing a 3.5-inch Drive into a Drive Bay Page Page 26Installing Hard Drive Guide Screws Drives Page Description Spare part number Fan duct 636921-001 Fan duct Description Spare part number Front fan 645327-001 Page Hood Sensor Remove the chassis fan Front Fan Assembly on Front I/O, Power Switch AssemblyPage 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 Preparation for Disassembly Description Spare part number Access panel 689382-001 Description Spare part number Front bezel 689383-001 Front Bezel Security Page Description Spare part number Bezel blank 593230-001 Bezel Blank MXM DDR3-SDRAM SODIMMs SODIMMs Populating Sodimm Sockets 1SODIMM Socket LocationsDescription System Board Label Socket Color 8Removing a Sodimm Memory Installing SODIMMsPage Description Spare part number Front fan 689376-001 Front Fan Removing the Optical Drive Optical Drive 12Aligning the release latch Optical Drive Preparing the New Optical Drive Installing the New Optical Drive Remove the optical drive Removing the Optical Drive on Hard DrivePage Page Page Page Optical Drive Rail Description Spare part number Card reader 592685-001 Card ReaderPage Description Spare part number Speaker 689384-001 Description Spare part number Heat sink 587456-001 Lift the heat sink from the system board 3770s, 3.4 GHz, 8-MB L3 cache 689370-001 Page Secure the locking lever Wlan Module Page Hood Sensor Graphics Board 33Graphics board heat sink screws Graphics Board System board 657095-001 Front I/O panel 587458-001 Page Description Spare part number Rear fan 691352-001 Rear Fan Antennas Page 42Removing the rear antenna outside Antennas Page Changing from Desktop to Tower Configuration Description Spare part number Port cover 646818-001 Port Cover 46Removing a Port Cover Power Supply, External Safety and Comfort Before You Call for Technical Support Troubleshooting Without Diagnostics Refer to Helpful Hints on page 249 in this guide Helpful HintsPage Solving General Problems 1Solving General ProblemsComputer 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 or Start All Programs Cause Solution Troubleshooting Without Diagnostics Solving Power Problems 2Solving Power ProblemsPower supply shuts down intermittently Cause Solution Usdt power supply adapter must be at 135W and use 3Solving Diskette Problems Solving Diskette Problems Problem has occurred with a disk transaction Cause Solution Cannot format diskette Cause SolutionError-checking, click Check Now Diskette drive cannot read a diskette Cause Solution Cannot Boot to Diskette Cause Solution Invalid system disk message is displayed Cause SolutionStorage Boot Order Boot 4Solving Hard Drive Problems Solving Hard Drive Problems Nonsystem disk/NTLDR missing message Cause Solution Computer will not boot from hard drive Cause SolutionDevice Configuration Removable hard drive is not recognized by the computer Cause Computer seems to be locked up Cause Solving Media Card Reader Problems 5Solving Media Card Reader ProblemsCan not write to the media card Cause Computer’s software is used to safely eject the card 6Solving Display Problems Solving Display ProblemsBlank screen no video Cause Solution Only two display ports work Cause Personalization, select Adjust screen resolution Dim characters Cause Solution Image is not centered Cause SolutionSelect ImageControl/ Horizontal Position or Vertical No Connection, Check Signal Cable displays on screen Cause Out of Range displays on screen CauseClicking noise coming from inside a CRT monitor Cause Symbol. Click Start All Programs Accessories Certain typed symbols do not appear correct Cause Solution 7Solving Audio Problems Solving Audio Problems Sound from headphones is not clear or muffled Cause Advanced Device Options Internal SpeakerLine-in jack is not functioning properly Cause 8Solving Printer Problems Solving Printer ProblemsThere is no sound or sound volume is too low Cause Printer will not print Cause Solution Printer is offline Cause Solution Printer prints garbled information Cause Solution 9Solving Keyboard Problems Solving Keyboard and Mouse Problems10Solving Mouse Problems Shut Down Solving Keyboard and Mouse Problems 11Solving Hardware Installation Problems Solving Hardware Installation ProblemsComputer will not start Cause Solution Security USB Security Solving Network Problems 12Solving Network Problems Diagnostics reports a failure Cause Solution Network status link light never flashes Cause Solution New network card will not boot Cause Solution Solving Memory Problems Out of memory error Cause Solution 13Solving Memory ProblemsMemory count during Post is wrong Cause Solution Insufficient memory error during operation Cause Solution Solving CD-ROM and DVD Problems Solving Processor Problems14Solving Processor Problems Some fans only operate when needed 15Solving CD-ROM and DVD Problems Mode in Security Password OptionsMovie will not play in the DVD drive Cause Solution Cannot eject compact disc tray-load unit Cause 16Solving USB Flash Drive Problems Solving USB Flash Drive ProblemsUSB flash drive not found identified Cause Solution System will not boot from USB flash drive Cause Solution Solving Internet Access Problems Solving Front Panel Component Problems17Solving Front Panel Component Problems 18Solving Internet Access Problems Click Network and Internet WindowsClick Internet Options Windows XP Click on Device Manager Click on Hardware and SoundDouble-clickAgere Systems PCI-SV92PP Soft Modem 19Solving Software Problems Solving Software Problems Contacting Customer Support Post Error Messages Post Numeric Codes and Text Messages ROM Download to Disable to1Numeric Codes and Text Messages Control panel message Description Recommended action Post Numeric Codes and Text Messages Verify monitor is attached and turned Replace diskette drive Options Sata Emulation to IDE, Test under Storage DPS Self-testSelect File Save Changes and Exit 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 Cmos Resetting the Password Jumper Clearing and Resetting the Cmos Cmos button Backing up your information Windows 7 Backup and Recovery Select Start All Programs Maintenance Backup and Restore Using the Windows recovery tools Performing a recovery Using F11 Select Repair your computer Battery Replacement Type Page Removing and Replacing a Removable 3.5-inch Sata Hard Drive Page Page Figure B-7Replacing the Thermal Sensor 319 Page Smart Cover FailSafe Key Unlocking the Smart Cover LockPage Page General Requirements Japanese Power Cord Requirements Country Accrediting Agency Country-Specific Requirements Table E-1Specifications CMT Specifications Table E-2Specifications MT SpecificationsStandard Efficiency High Efficiency Appendix E Specifications SFF Specifications Table E-3SpecificationsRated Input Current Table E-4Specifications Usdt Specifications Index SFF Usdt spare part number 228 Usdt removal Page CMT SFF Usdt Sata CMT