HP 285 G3

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7. Remove the power cable from the clip on the base pan.

8. Disconnect the power supply cables from the following system board connectors:

ATX_CPU

ATX_PWR

9. Press the tab (1) on the base pan in front of the power supply that holds it in place.

Power supply 39

Main Page

Table of Contents5
Product Features9
Standard Configuration Features9
Front Panel Components10
Rear Panel Components11
Serial Number Location11
Illustrated Parts Catalog12
Microtower (MT) Chassis Spare Parts12
Computer Major Components12
Miscellaneous Parts13
Miscellaneous Boards14
Drives14
Routine Care, SATA Drive Guidelines, and Disassembly Preparation15
Electrostatic Discharge Information15
Generating Static15
Preventing Electrostatic Damage to Equipment16
Personal Grounding Methods and Equipment16
Grounding the Work Area16
Recommended Materials and Equipment17
Operating Guidelines17
Routine Care18
General Cleaning Safety Precautions18
Cleaning the Computer Case18
Cleaning the Keyboard18
Cleaning the Monitor19
Cleaning the Mouse19
Service Considerations19
Power Supply Fan19
Tools and Software Requirements19
Screws19
Cables and Connectors20
Hard Drives20
Lithium Coin Cell Battery20
SATA Hard Drives21
SATA Hard Drive Cables21
SATA Data Cable21
SMART ATA Drives21
Cable Management22
Removal and Replacement Procedures23
Preparation for Disassembly23
Access Panel24
Front Bezel25
Front Bezel Security26
Drive Cage26
Memory29
Dimms29
DIMM Specifications29
Populating DIMM Sockets29
Installing Dimms30
Expansion Cards32
Drives35
Removing a Slim Optical Drive36
Installing a Slim Optical Drive38
Removing a Solid State Drive41
Installing a Solid State Drive42
Removing a Hard Drive43
Installing a Hard Drive44
Rear Chassis Fan45
Power Supply46
Fan Sink49
Processor51
System Board53
Computer Setup (F10) Utility54
Computer Setup (F10) Utilities54
Using Computer Setup (F10) Utilities54
Computer Setup-File56
Computer Setup-Storage57
Computer Setup-Security58
Computer Setup-Power60
Computer Setup-Advanced60
Recovering the Configuration Settings61
Troubleshooting Without Diagnostics62
Safety and Comfort62
Before You Call for Technical Support62
Helpful Hints63
Solving General Problems64
Solving Power Problems68
Solving Hard Drive Problems69
Solving Media Card Reader Problems71
Solving Display Problems72
Solving Audio Problems76
Solving Printer Problems78
Solving Keyboard and Mouse Problems79
Solving Hardware Installation Problems81
Solving Network Problems82
Solving Memory Problems85
Solving CD-ROM and DVD Problems86
Solving USB Flash Drive Problems88
Solving Front Panel Component Problems89
Solving Internet Access Problems90
Solving Software Problems91
POST Error Messages and Diagnostic Front Panel Leds and Audible Codes92
POST Numeric Codes and Text Messages92
Interpreting System Validation Diagnostic Front Panel Leds and Audible Codes97
Password Security and Resetting CMOS99
Resetting the Password Jumper99
Changing a Setup or Power-On Password100
Deleting a Setup or Power-On Password100
Using HP PC Hardware Diagnostics (UEFI)102
Downloading HP PC Hardware Diagnostics (UEFI) to a USB Device103
10 System Backup and Recovery104
Backing Up, Restoring, and Recovering in Windows 10104
Creating Recovery Media and Backups104
Creating HP Recovery Media (Select Products Only)104
Using Windows Tools105
Restore and Recovery105
Recovering Using HP Recovery Manager106
What You Need to Know before You Get Started106
Using the HP Recovery Partition (Select Products Only)107
Using HP Recovery Media to Recover107
Changing the Computer Boot Order107
Removing the HP Recovery Partition (Select Products Only)107
Backing Up, Restoring, and Recovering in Windows 7108
Creating Recovery Media108
Creating Recovery Media Using HP Recovery Manager (Select Models Only)109
Creating Recovery Discs with HP Recovery Disc Creator (Select Models Only)110
Creating Recovery Discs110
Backing up Your Information110
System Restore111
System Recovery111
System Recovery When Windows Is Responding112
System Recovery When Windows Is Not Responding112
System Recovery Using Recovery Media (Select Models Only)113
Using HP Recovery Disc Operating System Discs (Select Models Only)113
Appendix A Battery Replacement115
Appendix B Power Cord Set Requirements118
General Requirements118
Japanese Power Cord Requirements118
Country-Specific Requirements119
Appendix C Statement of Volatility120
Appendix D Specifications122
MT Specifications122
Index123

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