HP ZBook 17 Maintenance and Service Guide - Page 106

Failure classification by boot-up sequence, Table 7-3

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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 (Table 7-3 Failure classification by boot-up sequence on page 92 and Table 7-4 Failure classification by hardware devices and mechanical on page 93). This will 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 2. POST 1. No Power on page 108 2. Intermittent power-on, shutdown, reboot on page 110a 1. No video (with power) on page 114 2. Blinking lights on page 115 3. AC adapter issue on page 111 3. Diagnostics error messages 4. Battery not recognized, not charging on page 116 on page 112 4. BIOS password on page 117 5. Battery discharges too fast on page 113 6. Burnt smell on page 114 a,b,c similar symptoms 3. Performance 1. Intermittent shutdown on page 118a 2. Blue screen (BSOD) error on page 143b 3. Freeze at Windows Logo (hang/lockup) on page 121 4. Electromagnetic Interference (EMI) on page 122 5. No wake up on page 123 6. Unresponsive on page 124 7. Slow performance on page 124c 8. HP Smart Adapter warning message on page 125 9. Incorrect time and date on page 125 92 Chapter 7 Troubleshooting guide

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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 (
Table
7
-
3
Failure
classification
by boot-up sequence
on page
92
and
Table
7
-
4
Failure
classification
by hardware devices and mechanical
on page
93
). This will
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
2. POST
3. Performance
1.
No Power
on page
108
2.
Intermittent power-on, shutdown,
reboot
on page
110
a
3.
AC adapter issue
on page
111
4.
Battery not recognized, not charging
on page
112
5.
Battery discharges too fast
on page
113
6.
Burnt smell
on page
114
1.
No video (with power)
on page
114
2.
Blinking lights
on page
115
3.
Diagnostics error messages
on page
116
4.
BIOS password
on page
117
1.
Intermittent shutdown
on page
118
a
2.
Blue screen (BSOD) error
on page
143
b
3.
Freeze at Windows Logo (hang/lockup)
on page
121
4.
Electromagnetic Interference (EMI)
on page
122
5.
No wake up
on page
123
6.
Unresponsive
on page
124
7.
Slow performance
on page
124
c
8.
HP Smart Adapter warning message
on page
125
9.
Incorrect time and date
on page
125
a,b,c
similar symptoms
92
Chapter 7
Troubleshooting guide