HP ZBook Studio G3 Maintenance and Service Guide - Page 80

Failure classification by hardware devices and mechanical, 2. Examine the environment, Failure

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Failure classification by hardware devices and mechanical Table 7-4 Failure classification by hardware devices and mechanical 4. Display 5. I/O devices 6. Storage 7. Mechanical 1. Display anomalies on page 100 2. Dead pixel on page 102 1. Keyboard on page 106 2. Keyboard point stick on page 107 3. No video (internal) on page 102d 3. Keyboard backlight on page 107 4. No video (external) on page 103d 5. DisplayPort/VGA on page 103 4. TouchPad on page 108 5. Network Connectivity Ethernet (RJ-45 jack) on page 108 6. HDMI on page 103 6. Network connectivity 7. No or bad external video via docking on page 104 wireless (WLAN) on page 109 7. USB on page 110 8. Incorrect or missing color/ distorted image 8. Smart card reader on page 104 on page 112 1. Hard drive/solid-state drive not recognized on page 116 2. No boot to operating system (no read/write error) on page 116 3. Read-write error on page 117 4. Slow performance on page 98c 5. Blue screen (BSOD) error on page 117b 6. Noisy hard drive on page 118 9. Touch screen on page 105 9. Speaker, headphone audio issues on page 113 10. Thunderbolt (TB) on page 114 1. Fan error message - 90B on page 119 2. Noise (sound) on page 120 3. Fan runs constantly on page 121 4. HP Thermal Monitor on page 71 5. Stuck power button on page 122 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. ● Confirm that power sources are good, such as wall power type/adapter (110V/220V ac), power strip. Test with a verified working AC outlet. ● Check for compatibility issues between the computer and third-party devices, peripherals, noncertified 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, floor mats, fans (and other electronic motors). EMI may contribute to a display freeze issue or lock-up. 66 Chapter 7 Troubleshooting guide

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Failure
classification
by hardware devices and mechanical
Table 7-4
Failure
classification
by hardware devices and mechanical
4. Display
5. I/O devices
6. Storage
7. Mechanical
1.
Display anomalies
on page
100
2.
Dead pixel
on page
102
3.
No video (internal)
on page
102
d
4.
No video (external)
on page
103
d
5.
DisplayPort/VGA
on page
103
6.
HDMI
on page
103
7.
No or bad external video
via docking
on page
104
8.
Incorrect or missing color/
distorted image
on page
104
9.
Touch screen
on page
105
1.
Keyboard
on page
106
2.
Keyboard point stick
on page
107
3.
Keyboard backlight
on page
107
4.
TouchPad
on page
108
5.
Network Connectivity
Ethernet (RJ-45 jack)
on page
108
6.
Network connectivity
wireless (WLAN)
on page
109
7.
USB
on page
110
8.
Smart card reader
on page
112
9.
Speaker, headphone -
audio issues
on page
113
10.
Thunderbolt (TB)
on page
114
1.
Hard drive/solid-state
drive not recognized
on page
116
2.
No boot to operating
system (no read/write
error)
on page
116
3.
Read-write error
on page
117
4.
Slow performance
on page
98
c
5.
Blue screen (BSOD) error
on page
117
b
6.
Noisy hard drive
on page
118
1.
Fan error message - 90B
on page
119
2.
Noise (sound)
on page
120
3.
Fan runs constantly
on page
121
4.
HP Thermal Monitor
on page
71
5.
Stuck power button
on page
122
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.
●
Confirm
that power sources are good, such as wall power type/adapter (110V/220V ac), power strip. Test
with a
verified
working AC outlet.
●
Check for compatibility issues between the computer and third-party devices, peripherals,
noncertified
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,
floor
mats, fans (and other electronic motors). EMI may contribute to a display freeze issue or
lock-up.
66
Chapter 7
Troubleshooting guide