HP ProDesk 400 G1 Maintenance And Service Manual page 9

Solving audio problems ........................................................................................................ 169
Solving printer problems ....................................................................................................... 171
Solving keyboard and mouse problems .................................................................................. 172
Solving Hardware Installation Problems .................................................................................. 174
Solving Network Problems .................................................................................................... 177
Solving memory problems ..................................................................................................... 180
Solving processor problems ................................................................................................... 182
Solving CD-ROM and DVD problems ...................................................................................... 183
Solving USB flash drive problems ........................................................................................... 185
Solving front panel component problems ................................................................................. 186
Solving Internet access problems ............................................................................................ 186
Solving software problems .................................................................................................... 188
9 POST error messages .................................................................................................... 190
POST numeric codes and text messages .................................................................................. 191
Interpreting POST diagnostic front panel LEDs and audible codes .............................................. 199
10 Password security and resetting CMOS ....................................................................... 203
Resetting the password jumper ............................................................................................... 204
Clearing and resetting the CMOS .......................................................................................... 205
11 HP PC Hardware Diagnostics ...................................................................................... 207
Why run HP PC Hardware Diagnostics ................................................................................... 207
How to access and run HP PC Hardware Diagnostics ............................................................... 207
Downloading HP PC Hardware Diagnostics to a USB device ..................................................... 208
12 System backup and recovery ...................................................................................... 209
Backing up, restoring, and recovering in Windows 8.1 or Windows 8 ....................................... 209
Creating recovery media and backups .................................................................... 209
Restoring and recovering using Windows tools ......................................................... 210
Backing up, restoring, and recovering in Windows 7 ............................................................... 212
Creating recovery media ........................................................................................ 212
System Restore ...................................................................................................... 215
Using Reset when the system is not responding .......................................... 210
Recovery using the Windows recovery USB flash drive ............................... 211
Recovery using Windows operating system media (purchased separately) .... 211
Creating recovery media using HP Recovery Manager (select models only) ... 213
Creating recovery discs with HP Recovery Disc Creator (select models only) . . 214
Creating recovery discs ............................................................ 214
Backing up your information .................................................................... 215
ix