HP ZBook x2 Manual page 7

7. Status lights, blinking light codes, troubleshooting lights, and POST error
messages ....................................................................................................................................... 68
Resolve the issue ............................................................................................................................................... 70
8. Hard reset .................................................................................................................................. 70
9. Soft reset (Default Settings) ................................................................................................... 71
10. Reseat cables and connections ........................................................................................... 72
11. Test with minimum configuration ....................................................................................... 72
12. Test with verified working configuration (hardware and/or operating system) .......... 74
13. Replace the system board .................................................................................................... 74
Verify solution .................................................................................................................................................... 75
Helpful Hints ........................................................................................................................................................................... 75
At startup ............................................................................................................................................................ 75
During operation ................................................................................................................................................ 76
Consulting with HP Service .............................................................................................................................. 76
Common issues and possible solutions ............................................................................................................................. 77
Power-on issues ................................................................................................................................................ 77
No Power ........................................................................................................................................ 77
Intermittent power-on, shutdown, reboot ............................................................................... 79
AC adapter issue ........................................................................................................................... 80
Battery not recognized, not charging ........................................................................................ 81
Battery discharges too fast ......................................................................................................... 82
Burnt smell .................................................................................................................................... 83
POST .................................................................................................................................................................... 84
No video (with power) .................................................................................................................. 84
Blinking lights ................................................................................................................................ 85
Diagnostics error messages ........................................................................................................ 86
BIOS password .............................................................................................................................. 87
Performance (OS) .............................................................................................................................................. 87
Intermittent shutdown ................................................................................................................. 88
Blue screen .................................................................................................................................... 89
Freeze at Windows Logo (hang/lockup) .................................................................................... 92
Electromagnetic Interference (EMI) ........................................................................................... 93
No wake up .................................................................................................................................... 93
Unresponsive ................................................................................................................................. 95
Slow performance ........................................................................................................................ 95
Non HP diagnostics tools ........................................................................................ 67
Status lights .............................................................................................................. 68
Blinking light codes .................................................................................................. 69
POST error messages .............................................................................................. 69
Essential hardware configuration .......................................................................... 73
Safe mode ................................................................................................................. 73
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