HP ZBook 15 G3 Mobile Workstation - Maintenance and Service Guide

Failure classication by hardware devices and mechanical
Table 7-4 Failure classication by hardware devices and mechanical
4. Display 5. I/O devices 6. Storage 7. Mechanical
1. Display anomalies
on page 118
2. Dead pixel on page 120
3. No video (internal)
on page 120
d
4. No video (external)
on page 121
d
5. DisplayPort/VGA
on page 121
6. HDMI on page 121
7. No or bad external video
via docking on page 122
8. Incorrect or missing color/
distorted image
on page 122
9. Touch screen
on page 123
1. Keyboard on page 124
2. Keyboard point stick
on page 125
3. Keyboard backlight
on page 125
4. TouchPad on page 126
5. Network Connectivity
Ethernet (RJ-45 jack)
on page 126
6. Network connectivity
wireless (WLAN)
on page 127
7. WWAN on page 128
8. USB on page 129
9. Smart card reader
on page 130
10. Speaker, headphone -
audio issues on page 131
11. Thunderbolt (TB)
on page 132
1. Hard drive/solid-state
drive not recognized
on page 134
2. No boot to operating
system (no read/write
error) on page 134
3. Read-write error
on page 135
4. Slow performance
on page 116
c
5. Blue screen (BSOD) error
on page 135
b
6. Noisy hard drive
on page 136
1. Fan error message - 90B
on page 137
2. Noise (sound)
on page 138
3. Fan runs constantly
on page 139
4. HP Thermal Monitor
on page 89
5. Stuck power button
on page 140
b,c,d
similar symptoms
2. Examine the environment
It is important to examine the computer’s environment. If you can quickly identify the cause of the issue,
fewer resolution steps may be needed. Perform the following environment inspections:
●
Check all cables and connections to be sure that there are no loose connections.
●
Conrm that power sources are good, such as wall power type/adapter (110V/220V ac), power strip. Test
with a veried working AC outlet.
●
Check for compatibility issues between the computer and third-party devices, peripherals, noncertied
devices, incompatible hardware (i.e., Mac OS device). Incompatibility can result in blue screen errors,
improper operation, and so on.
●
Isolate the computer from sources of electromagnetic interference (EMI), such as cell phones, 2-way
radios, oor mats, fans (and other electronic motors). EMI may contribute to a display freeze issue or
lock-up.
84 Chapter 7 Troubleshooting guide