HP EliteDesk 800 G4 SFF

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5. Lift the fan sink from atop the processor (3) and set it on its side to keep from contaminating the work

area with thermal grease.

Up to 65 W processor models

95 W processor models

Fan sink 55

Main Page

Table of Contents5
Product Features9
Standard Configuration Features9
Front Panel Components10
Rear Panel Components11
Serial Number Location11
Illustrated Parts Catalog12
Computer Major Components12
Miscellaneous Parts15
Routine Care, SATA Drive Guidelines, and Disassembly Preparation17
Electrostatic Discharge Information17
Generating Static17
Preventing Electrostatic Damage to Equipment18
Personal Grounding Methods and Equipment18
Grounding the Work Area18
Recommended Materials and Equipment19
Operating Guidelines19
Routine Care20
General Cleaning Safety Precautions20
Cleaning the Computer Case20
Cleaning the Keyboard20
Cleaning the Monitor21
Cleaning the Mouse21
Service Considerations21
Power Supply Fan21
Tools and Software Requirements21
Screws21
Cables and Connectors22
Hard Drives22
Lithium Coin Cell Battery22
SATA Hard Drives23
SATA Data Cable23
SMART ATA Drives23
Cable Management24
Removal and Replacement Procedures25
Preparation for Disassembly25
Access Panel26
Front Bezel27
Slim Optical Drive Bezel Blank28
Front Bezel Dust Filter29
System Board Connections30
Memory31
Populating DIMM Sockets31
Removing and Installing Dimms32
Expansion Card34
Drives38
Drive Positions38
Removing and Installing Drives38
Removing a 9.5 MM Slim Optical Drive39
Installing a 9.5 MM Slim Optical Drive41
Removing a 3.5-Inch Hard Drive42
Installing a 3.5-Inch Hard Drive44
Drive Cage48
Removing a 2.5-Inch Hard Drive49
Installing a 2.5-Inch Hard Drive50
Removing and Installing an M.2 SSD Storage Card52
WLAN Module54
Hood Lock55
Card Reader56
Antennas57
Air Duct59
Option Board60
Optional Rear Port61
Fan Sink62
Fan65
Processor66
Power Supply67
Speaker68
System Board69
System Board Callouts72
Changing from Desktop to Tower Orientation73
Computer Setup (F10) Utility74
Computer Setup (F10) Utilities74
Using Computer Setup (F10) Utilities74
Computer Setup-Main76
Computer Setup-Security78
Computer Setup-Advanced81
Computer Setup-UEFI Drivers86
Recovering the Configuration Settings86
Troubleshooting Without Diagnostics87
Safety and Comfort87
Before You Call for Technical Support87
Helpful Hints88
Solving General Problems89
Solving Power Problems93
Solving Hard Drive Problems94
Solving Media Card Reader Problems96
Solving Display Problems97
Solving Audio Problems101
Solving Printer Problems103
Solving Keyboard and Mouse Problems104
Solving Hardware Installation Problems105
Solving Network Problems106
Solving Memory Problems109
Solving CD-ROM and DVD Problems110
Solving USB Flash Drive Problems112
Solving Front Panel Component Problems113
Solving Internet Access Problems113
Solving Software Problems114
POST Error Messages and Diagnostic Front Panel Leds and Audible Codes115
POST Numeric Codes and Text Messages115
Interpreting System Validation Diagnostic Front Panel Leds and Audible Codes120
Password Security and Resetting CMOS122
Resetting the Password Jumper122
Clearing and Resetting the BIOS124
Using HP PC Hardware Diagnostics125
Using HP PC Hardware Diagnostics Windows125
Downloading HP PC Hardware Diagnostics Windows125
Downloading the Latest HP PC Hardware Diagnostics Windows Version126
Downloading HP Hardware Diagnostics Windows by Product Name or Number (Select Products Only)126
Installing HP PC Hardware Diagnostics Windows126
Using HP PC Hardware Diagnostics UEFI126
Starting HP PC Hardware Diagnostics UEFI127
Downloading HP PC Hardware Diagnostics UEFI to a USB Flash Drive127
Downloading the Latest HP PC Hardware Diagnostics UEFI Version127
Downloading HP PC Hardware Diagnostics UEFI by Product Name or Number (Select Products Only)127
Using Remote HP PC Hardware Diagnostics UEFI Settings (Select Products Only)128
Downloading Remote HP PC Hardware Diagnostics UEFI128
Downloading the Latest Remote HP PC Hardware Diagnostics UEFI Version128
Downloading Remote HP PC Hardware Diagnostics UEFI by Product Name or Number128
Customizing Remote HP PC Hardware Diagnostics UEFI Settings128
Appendix A Battery Replacement130
Appendix B Power Cord Set Requirements133
General Requirements133
Japanese Power Cord Requirements133
Country-Specific Requirements134
Appendix C Statement of Memory Volatility135
Nonvolatile Memory Usage137
Questions and Answers139
Using HP Sure Start (Select Models Only)140
Appendix D Specifications141
Index142

HP EliteDesk 800 G4 SFF

Table of Contents

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