HP EliteDesk 800 G4 SFF Maintenance And Service Manual page 7

Computer Setup-Main ....................................................................................................................... 68
Computer Setup-Security ............................................................................................................... 70
Computer Setup-Advanced ............................................................................................................. 73
Computer Setup-UEFI Drivers ......................................................................................................... 78
Recovering the Configuration Settings ............................................................................................................... 78
6 Troubleshooting without diagnostics ............................................................................................................ 79
Safety and comfort .............................................................................................................................................. 79
Before you call for technical support .................................................................................................................. 79
Helpful hints ........................................................................................................................................................ 80
Solving general problems .................................................................................................................................... 81
Solving power problems ...................................................................................................................................... 85
Solving hard drive problems ................................................................................................................................ 86
Solving media card reader problems ................................................................................................................... 88
Solving display problems .................................................................................................................................... 89
Solving audio problems ....................................................................................................................................... 93
Solving printer problems ..................................................................................................................................... 95
Solving keyboard and mouse problems .............................................................................................................. 96
Solving hardware installation problems ............................................................................................................. 97
Solving network problems .................................................................................................................................. 98
Solving memory problems ................................................................................................................................ 101
Solving CD-ROM and DVD problems .................................................................................................................. 102
Solving USB flash drive problems ..................................................................................................................... 104
Solving front panel component problems ........................................................................................................ 105
Solving Internet access problems ..................................................................................................................... 105
Solving software problems ............................................................................................................................... 106
7 POST error messages and diagnostic front panel LEDs and audible codes ....................................................... 107
POST numeric codes and text messages .......................................................................................................... 107
Interpreting system validation diagnostic front panel LEDs and audible codes .............................................. 112
8 Password security and resetting CMOS ........................................................................................................ 114
Resetting the password jumper ........................................................................................................................ 114
Clearing and resetting the BIOS ........................................................................................................................ 116
9 Using HP PC Hardware Diagnostics .............................................................................................................. 117
Using HP PC Hardware Diagnostics Windows ................................................................................................... 117
Downloading HP PC Hardware Diagnostics Windows ..................................................................... 117
Downloading the latest HP PC Hardware Diagnostics Windows version ..................... 118
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