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 oered on certain
hardware congurations; therefore, a Bluetooth issue can be classied under “I/O Device” if needed.
Failure classication by boot-up sequence
Table 7-3 Failure classication by boot-up sequence
1. Power-on 2. POST 3. Performance
1. No Power on page 47
2. Intermittent power-on, shutdown,
reboot on page 49
a
3. AC adapter issue on page 50
4. Battery not recognized, not charging
on page 50
5. Battery discharges too fast
on page 52
6. Burnt smell on page 53
1. No video (with power) on page 53
2. Blinking lights on page 54
3. Diagnostics error messages
on page 55
4. BIOS password on page 56
1.
Intermittent shutdown on page 57
a
2.
Blue screen (BSOD) error on page 78
b
3. Freeze at Windows Logo (hang/lockup)
on page 60
4. Electromagnetic Interference (EMI)
on page 61
5. No wake up on page 62
6. Unresponsive on page 63
7.
Slow performance on page 63
c
8. HP Smart Adapter warning message
on page 64
9. Incorrect time and date on page 64
a,b,c
similar symptoms
32 Chapter 7 Troubleshooting guide
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