Maintenance and Service Guide

Speaker, headphone - audio issues .............................................................................. 139
Thunderbolt (TB) ........................................................................................................... 140
Storage ............................................................................................................................................ 141
Hard drive/solid-state drive not recognized ................................................................ 142
No boot to operating system (no read/write error) ..................................................... 142
Read-write error ........................................................................................................... 143
Slow performance ......................................................................................................... 143
Blue screen (BSOD) error .............................................................................................. 143
Noisy hard drive ............................................................................................................ 144
Mechanical ....................................................................................................................................... 145
Fan error message - 90B .............................................................................................. 145
Noise (sound) ................................................................................................................ 146
Fan runs constantly ...................................................................................................... 147
Thermal shutdown (hot) ............................................................................................... 148
Stuck power button ...................................................................................................... 148
Additional information ...................................................................................................................................... 149
Acronyms ......................................................................................................................................... 149
Blinking lights and boot error codes ............................................................................................... 150
Processor not executing code ...................................................................................... 150
BIOS recovery code unable to nd valid BIOS recovery image ..................................... 150
Memory module error ................................................................................................... 150
Graphics Controller Error (No Controller) ..................................................................... 151
Failure - System Board Error ........................................................................................ 151
Intel Trusted Execution Technology (TXT) Error .......................................................... 151
Sure Start unable to nd valid BIOS Boot Block image ................................................ 151
Sure Start has identied a problem (Manual Recovery Policy Set) .............................. 152
POST Error Messages and User Actions .......................................................................................... 152
Routine Maintenance for Performance Improvement .................................................................... 154
Common Blue Screen Error Messages ............................................................................................ 154
Error message list ......................................................................................................... 154
Bug check symbolic names ........................................................................................... 154
Microsoft general troubleshooting of Windows bug check codes ............................... 155
Use Windows Debugging Tool ......................................................................................................... 155
Windows Software Development Kit (SDK) .................................................................. 156
Display Issue: Pixel Anomalies ........................................................................................................ 160
Cable management ......................................................................................................................... 161
Connector types .............................................................................................................................. 162
8 Computer Setup (BIOS), TPM, and HP Sure Start in Windows 7 ........................................................................ 165
Using Computer Setup ....................................................................................................................................... 165
Starting Computer Setup ................................................................................................................ 165
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