HP ZBook 15 G3 Mobile Workstation - Maintenance and Service Guide

Blinking lights ............................................................................................................... 107
Diagnostics error messages ......................................................................................... 108
BIOS password .............................................................................................................. 109
Performance (OS) ............................................................................................................................ 109
Intermittent shutdown ................................................................................................. 110
Blue screen .................................................................................................................... 111
Freeze at Windows Logo (hang/lockup) ....................................................................... 113
Electromagnetic Interference (EMI) .............................................................................. 114
No wake up .................................................................................................................... 114
Unresponsive ................................................................................................................ 116
Slow performance ......................................................................................................... 116
HP Smart Adapter warning message ........................................................................... 117
Incorrect time and date ................................................................................................ 117
Display ............................................................................................................................................. 118
Display anomalies ......................................................................................................... 118
Symptom .................................................................................................... 118
Quick check ................................................................................................. 119
HP PC Hardware Diagnostics (UEFI) for video test ..................................... 119
Display assembly diagram ......................................................................... 120
Dead pixel ..................................................................................................................... 120
No video (internal) ........................................................................................................ 120
No video (external) ....................................................................................................... 121
DisplayPort/VGA ........................................................................................................... 121
HDMI .............................................................................................................................. 121
No or bad external video via docking ........................................................................... 122
Incorrect or missing color/distorted image .................................................................. 122
Touch screen ................................................................................................................. 123
I/O devices ....................................................................................................................................... 124
Keyboard ....................................................................................................................... 124
Keyboard point stick ..................................................................................................... 125
Keyboard backlight ....................................................................................................... 125
TouchPad ....................................................................................................................... 126
Network Connectivity Ethernet (RJ-45 jack) ................................................................ 126
Network connectivity wireless (WLAN) ........................................................................ 127
WWAN ............................................................................................................................ 128
USB ................................................................................................................................ 129
Smart card reader ......................................................................................................... 130
Speaker, headphone - audio issues .............................................................................. 131
Thunderbolt (TB) ........................................................................................................... 132
Storage ............................................................................................................................................ 133
Hard drive/solid-state drive not recognized ................................................................ 134
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