HP ProDesk 400 G3 Small Form Factor Maintenance And Service Manual page 7

6 Troubleshooting without diagnostics ............................................................................................................ 60
Safety and comfort .............................................................................................................................................. 60
Before you call for technical support .................................................................................................................. 60
Helpful hints ........................................................................................................................................................ 61
Solving general problems .................................................................................................................................... 62
Solving power problems ...................................................................................................................................... 66
Solving hard drive problems ................................................................................................................................ 67
Solving media card reader problems ................................................................................................................... 69
Solving display problems .................................................................................................................................... 70
Solving audio problems ....................................................................................................................................... 75
Solving printer problems ..................................................................................................................................... 77
Solving keyboard and mouse problems .............................................................................................................. 78
Solving Hardware Installation Problems ............................................................................................................. 80
Solving Network Problems .................................................................................................................................. 81
Solving memory problems .................................................................................................................................. 84
Solving CD-ROM and DVD problems .................................................................................................................... 85
Solving USB flash drive problems ........................................................................................................................ 88
Solving front panel component problems .......................................................................................................... 89
Solving Internet access problems ....................................................................................................................... 89
Solving software problems .................................................................................................................................. 91
7 POST error messages and diagnostic front panel LEDs and audible codes ......................................................... 92
POST numeric codes and text messages ............................................................................................................. 92
Interpreting system validation diagnostic front panel LEDs and audible codes ................................................ 97
8 Password security and resetting CMOS .......................................................................................................... 99
Resetting the password jumper .......................................................................................................................... 99
Clearing and resetting the BIOS ........................................................................................................................ 101
9 Using HP PC Hardware Diagnostics (UEFI) ..................................................................................................... 102
Downloading HP PC Hardware Diagnostics (UEFI) to a USB device .................................................................. 102
10 System backup and recovery ..................................................................................................................... 104
Backing up, restoring, and recovering in Windows 8.1 or Windows 8 .............................................................. 104
Creating recovery media and backups ............................................................................................ 104
Restoring and recovering using Windows tools ............................................................................. 104
Backing up, restoring, and recovering in Windows 7 ........................................................................................ 106
Using Reset when the system is not responding ......................................................... 105
Recovery using the Windows recovery USB flash drive ............................................... 105
Recovery using Windows operating system media (purchased separately) ............... 106
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