HP ProDesk 405 G4 Small Form Factor Maintenance And Service Manual page 7

Computer Setup-Security .............................................................................................................................. 61
Computer Setup-Advanced ........................................................................................................................... 64
Computer Setup-UEFI Drivers ...................................................................................................................... 69
Recovering the Configuration Settings ............................................................................................................................... 69
6 Troubleshooting without diagnostics ................................................................................................................................................. 70
Safety and comfort ................................................................................................................................................................ 70
Before you call for technical support .................................................................................................................................. 70
Helpful hints ............................................................................................................................................................................ 71
Solving general problems ..................................................................................................................................................... 72
Solving power problems ....................................................................................................................................................... 76
Solving hard drive problems ................................................................................................................................................ 77
Solving media card reader problems .................................................................................................................................. 79
Solving display problems ...................................................................................................................................................... 80
Solving audio problems ........................................................................................................................................................ 84
Solving printer problems ...................................................................................................................................................... 86
Solving keyboard and mouse problems ............................................................................................................................. 87
Solving hardware installation problems ............................................................................................................................. 88
Solving network problems .................................................................................................................................................... 89
Solving memory problems ................................................................................................................................................... 91
Solving CD-ROM and DVD problems ................................................................................................................................... 93
Solving USB flash drive problems ........................................................................................................................................ 95
Solving front panel component problems ......................................................................................................................... 96
Solving Internet access problems ....................................................................................................................................... 96
Solving software problems .................................................................................................................................................. 97
7 POST error messages and diagnostic front panel LEDs and audible codes ................................................................................. 98
POST numeric codes and text messages ........................................................................................................................... 98
Interpreting system validation diagnostic front panel LEDs and audible codes ....................................................... 103
8 Password security and resetting CMOS ............................................................................................................................................ 105
Resetting the password jumper ........................................................................................................................................ 105
Clearing and resetting the BIOS ........................................................................................................................................ 107
9 Using HP PC Hardware Diagnostics ................................................................................................................................................... 108
Using HP PC Hardware Diagnostics Windows (select products only) ......................................................................... 108
Downloading HP PC Hardware Diagnostics Windows ............................................................................... 108
Downloading the latest HP PC Hardware Diagnostics Windows version .......................... 108
Downloading HP Hardware Diagnostics Windows by product name or number
(select products only) ................................................................................................................ 109
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