HP ProDesk 400 G1 Maintenance And Service Manual page 7

Before you call for technical support .................................................................................................................. 64
Helpful hints ........................................................................................................................................................ 65
Solving general problems ................................................................................................................................... 66
Solving hard drive problems ............................................................................................................................... 69
Solving display problems .................................................................................................................................... 71
Solving audio problems ....................................................................................................................................... 75
Solving printer problems ..................................................................................................................................... 77
Solving keyboard and mouse problems ............................................................................................................. 78
Solving Hardware Installation Problems ............................................................................................................ 79
Solving Network Problems .................................................................................................................................. 81
Solving memory problems .................................................................................................................................. 84
Solving USB flash drive problems ....................................................................................................................... 85
Solving Internet access problems ....................................................................................................................... 86
Solving software problems ................................................................................................................................. 87
7 POST error messages ................................................................................................................................... 89
POST numeric codes and text messages ............................................................................................................ 89
Interpreting POST diagnostic front panel LEDs and audible codes .................................................................... 93
8 Password security and resetting CMOS .......................................................................................................... 95
Resetting the password jumper .......................................................................................................................... 95
Changing a Setup or Power-On password .......................................................................................................... 96
Deleting a Setup or Power-On password ............................................................................................................ 97
Clearing and resetting the CMOS ......................................................................................................................... 97
9 HP PC Hardware Diagnostics ......................................................................................................................... 99
Why run HP PC Hardware Diagnostics ................................................................................................................. 99
How to access and run HP PC Hardware Diagnostics ......................................................................................... 99
Downloading HP PC Hardware Diagnostics (UEFI) to a USB device .................................................................... 99
10 System backup and recovery .................................................................................................................... 101
Backing up, restoring, and recovering in Windows 8.1 or Windows 8 ............................................................. 101
Creating recovery media and backups ........................................................................................... 101
Restoring and recovering using Windows tools ............................................................................. 101
Backing up, restoring, and recovering in Windows 7 ........................................................................................ 103
Creating recovery media ................................................................................................................. 104
Using Reset when the system is not responding ......................................................... 102
Recovery using the Windows recovery USB flash drive ............................................... 102
Recovery using Windows operating system media (purchased separately) .............. 103
Creating recovery media using HP Recovery Manager (select models only) .............. 104
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