HP ZBook 17 G4 Mobile Workstation - Page 9

5. Remove or uninstall recently added hardware, software .......................................... 80
6. HP Hardware Diagnostics and Tools ........................................................................... 81
HP PC Hardware Diagnostics (UEFI) ............................................................. 81
HP Support Assistant (HPSA) ....................................................................... 83
HP BIOS Conguration Utility (BCU) ............................................................. 84
HP Image Diagnostic Tool ............................................................................. 84
HP Thermal Monitor ..................................................................................... 84
Non HP diagnostics tools ............................................................................. 84
7. Status lights, blinking light codes, troubleshooting lights, and POST error
messages ........................................................................................................................ 85
Status lights .................................................................................................. 85
Interpreting system validation diagnostic front panel LEDs and
audible codes ................................................................................................ 86
POST error messages ................................................................................... 87
Power Good (Troubleshooting) lights .......................................................... 89
Resolve the issue ............................................................................................................................... 90
8. Hard reset .................................................................................................................... 90
9. Soft reset (Default Settings) ....................................................................................... 91
10. Reseat cables and connections ................................................................................ 91
11. Test with minimum conguration ............................................................................ 92
Essential hardware conguration ................................................................ 92
Safe mode ..................................................................................................... 93
12. Test with veried working conguration (hardware and/or operating system) ..... 93
13. Replace the system board ........................................................................................ 93
Verify solution ................................................................................................................................... 94
Helpful Hints ........................................................................................................................................................ 94
At startup ........................................................................................................................................... 94
During operation ............................................................................................................................... 95
Consulting with HP Service ............................................................................................................... 95
Common issues and possible solutions .............................................................................................................. 96
Power-on issues ................................................................................................................................ 96
No Power ......................................................................................................................... 96
Intermittent power-on, shutdown, reboot ..................................................................... 98
AC adapter issue ........................................................................................................... 100
Battery not recognized, not charging ........................................................................... 100
Battery discharges too fast .......................................................................................... 102
Burnt smell .................................................................................................................... 103
POST ................................................................................................................................................ 103
No video (with power) ................................................................................................... 103
Blinking lights ............................................................................................................... 104
Diagnostics error messages ......................................................................................... 105
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