HP ZBook 15 G4 - Page 9

Mechanical ....................................................................................................................................... 133
Fan error message - 90B .............................................................................................. 133
Noise (sound) ................................................................................................................ 134
Fan runs constantly ...................................................................................................... 135
Thermal shutdown (hot) ............................................................................................... 136
Stuck power button ...................................................................................................... 137
Additional information ...................................................................................................................................... 137
Acronyms ......................................................................................................................................... 137
Blinking lights and boot error codes ............................................................................................... 138
Processor not executing code ...................................................................................... 138
BIOS recovery code unable to nd valid BIOS recovery image ..................................... 138
Memory module error ................................................................................................... 139
Graphics Controller Error (No Controller) ..................................................................... 139
Failure - System Board Error ........................................................................................ 139
Intel Trusted Execution Technology (TXT) Error .......................................................... 139
Sure Start unable to nd valid BIOS Boot Block image ................................................ 139
Sure Start has identied a problem (Manual Recovery Policy Set) .............................. 140
POST Error Messages and User Actions .......................................................................................... 140
Routine Maintenance for Performance Improvement .................................................................... 141
Common Blue Screen Error Messages ............................................................................................ 142
Error message list ......................................................................................................... 142
Bug check symbolic names ........................................................................................... 142
Microsoft general troubleshooting of Windows bug check codes ............................... 143
Use Windows Debugging Tool ......................................................................................................... 143
Windows Software Development Kit (SDK) .................................................................. 144
Display Issue: Pixel Anomalies ........................................................................................................ 148
Cable management ......................................................................................................................... 149
Connector types .............................................................................................................................. 150
7 Computer Setup (BIOS), TPM, and HP Sure Start ........................................................................................... 152
Using Computer Setup ....................................................................................................................................... 152
Starting Computer Setup ................................................................................................................ 152
Using a USB keyboard or USB mouse to start Computer Setup (BIOS) ........................ 152
Navigating and selecting in Computer Setup ................................................................................. 152
Restoring factory settings in Computer Setup ............................................................................... 153
Updating the BIOS ........................................................................................................................... 153
Determining the BIOS version ...................................................................................... 153
Downloading a BIOS update ......................................................................................... 154
Changing the boot order using the f9 prompt ................................................................................ 155
TPM BIOS settings (select products only) ......................................................................................................... 155
Using HP Sure Start (select products only) ....................................................................................................... 155
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