Remotely deploying BIOS and drivers .......................................................... 85
Analyze the issue ............................................................................................................................... 85
5. Remove or uninstall recently added hardware, software .......................................... 85
6. HP Hardware Diagnostics and Tools ........................................................................... 86
HP PC Hardware Diagnostics (UEFI) ............................................................. 86
HP Support Assistant (HPSA) ....................................................................... 88
HP BIOS Conguration Utility (BCU) ............................................................. 89
HP Image Diagnostic Tool ............................................................................. 89
HP Thermal Monitor ..................................................................................... 89
Non HP diagnostics tools ............................................................................. 89
7. Status lights, blinking light codes, troubleshooting lights, and POST error
messages ........................................................................................................................ 90
Status lights .................................................................................................. 90
Interpreting system validation diagnostic front panel LEDs and
audible codes ................................................................................................ 91
POST error messages ................................................................................... 92
Power Good (Troubleshooting) lights .......................................................... 93
Resolve the issue ............................................................................................................................... 94
8. Hard reset .................................................................................................................... 94
9. Soft reset (Default Settings) ....................................................................................... 95
10. Reseat cables and connections ................................................................................ 95
11. Test with minimum conguration ............................................................................ 96
Essential hardware conguration ................................................................ 96
Safe mode ..................................................................................................... 97
12. Test with veried working conguration (hardware and/or operating system) ..... 97
13. Replace the system board ........................................................................................ 97
Verify solution ................................................................................................................................... 98
Helpful Hints ........................................................................................................................................................ 98
At startup ........................................................................................................................................... 98
During operation ............................................................................................................................... 99
Consulting with HP Service ............................................................................................................. 100
Common issues and possible solutions ............................................................................................................ 100
Power-on issues .............................................................................................................................. 100
No Power ....................................................................................................................... 100
Intermittent power-on, shutdown, reboot ................................................................... 102
AC adapter issue ........................................................................................................... 103
Battery not recognized, not charging ........................................................................... 104
Battery discharges too fast .......................................................................................... 105
Burnt smell .................................................................................................................... 106
POST ................................................................................................................................................ 106
No video (with power) ................................................................................................... 106
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