HP ZBook 17 G5 Maintenance And Service Manual page 115

6. Storage
7. Mechanical
A single symptom can be listed under different groups. For example, No Video can belong to (1) Power-on or
(4) Display; but Flickering when powered should be listed in (4) Display. Or, in another example, a blue screen
can be caused by a driver conflict in Performance (4), but it can also be caused by a defective hard drive under
(6) Storage. Therefore, failures that share similar symptoms are noted.
If possible, make a record of the failure symptom, the phase of the boot-up sequence where the failure
occurs, and the most likely location in the failure tree
on page 103 and
help isolate the issue and indicate the next steps. For example, when the computer is running the operating
system, it may experience an issue with (4) Display, (5) I/O devices (keyboard, wireless, and so on), (6)
Storage, or (7) Mechanical components (stuck buttons, thermal shutdown, and so on).
NOTE: "Uncategorized" is used if an issue found is not listed. For example, Bluetooth is offered on certain
hardware configurations; therefore, a Bluetooth issue can be classified under "I/O Device" if needed.
Failure classification by boot-up sequence
Table 7-3 Failure classification by boot-up sequence
1. Power-on
1. No Power on page 120
2. Intermittent power-on, shutdown,
reboot on page 122
3. AC adapter issue on page 123
4. Battery not recognized, not charging
on page 123
5. Battery discharges too fast
on page 125
6. Burnt smell on page 125
a,b,c similar symptoms
Table 7-4 Failure classification by hardware devices and mechanical on page
2. POST
1.
2.
a
3.
4.
(Table 7-3 Failure classification by boot-up sequence
No video (with power)
on page 126
Blinking lights on page 127
Diagnostics error messages
on page 127
BIOS password on page 129
104). This will
3. Performance
1. Intermittent shutdown on page 130
2. Blue screen (BSOD) error on page 155
3. Freeze at Windows Logo (hang/lockup)
on page 133
4. Electromagnetic Interference (EMI)
on page 134
5. No wake up on page 135
6. Unresponsive on page 136
7. Slow performance on page 136
8. HP Smart Adapter warning message
on page 137
9. Incorrect time and date on page 137
General troubleshooting steps 103
a
b
c