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Appendix C POST Error Messages .............................................................................................................. 189
POST Numeric Codes and Text Messages ..................................................................................... 190
Interpreting POST Diagnostic Front Panel LEDs and Audible Codes .............................................. 196
Appendix D Troubleshooting Without Diagnostics .................................................................................... 200
Safety and Comfort .......................................................................................................................... 200
Before You Call for Technical Support ............................................................................................. 200
Helpful Hints ..................................................................................................................................... 201
Solving General Problems ................................................................................................................ 203
Solving Power Problems .................................................................................................................. 207
Solving Diskette Problems ............................................................................................................... 209
Solving Hard Drive Problems ........................................................................................................... 212
Solving Media Card Reader Problems ............................................................................................. 215
Solving Display Problems ................................................................................................................. 217
Solving Audio Problems ................................................................................................................... 221
Solving Printer Problems .................................................................................................................. 224
Solving Keyboard and Mouse Problems .......................................................................................... 225
Solving Hardware Installation Problems ........................................................................................... 227
Solving Network Problems ............................................................................................................... 229
Solving Memory Problems ............................................................................................................... 232
Solving Processor Problems ............................................................................................................ 234
Solving CD-ROM and DVD Problems .............................................................................................. 235
Solving USB Flash Drive Problems .................................................................................................. 237
Solving Front Panel Component Problems ...................................................................................... 238
Solving Internet Access Problems .................................................................................................... 239
Solving Software Problems .............................................................................................................. 241
Contacting Customer Support .......................................................................................................... 242
Appendix E Password Security and Resetting CMOS ............................................................................... 243
Resetting the Password Jumper ...................................................................................................... 244
Clearing and Resetting the CMOS ................................................................................................... 245
Appendix F Drive Protection System (DPS) ................................................................................................ 247
Accessing DPS Through Computer Setup ....................................................................................... 248
Appendix G Computer Diagnostic Features ............................................................................................... 249
Hewlett-Packard Vision Diagnostics ................................................................................................. 249
Accessing HP Vision Diagnostics .................................................................................... 249
Survey Tab ...................................................................................................................... 250
Test Tab ........................................................................................................................... 251
Status Tab ....................................................................................................................... 251
History Tab ...................................................................................................................... 252
Errors Tab ........................................................................................................................ 252
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