No Wake Up - HP ZBook Fury 17 G7 Maintenance And Service Manual

Table 7-21 Issues, possible causes, and fixes
Items
Symptoms
System locks up, freezes in certain
physical area or location

No wake up

Use this information to troubleshoot wake-up issues.
Table 7-22 Issues, possible causes, and fixes
Items
Symptoms
When resuming from a power
management state the computer may
display:
● Blank screen
● Some light activity
138 Chapter 7 Troubleshooting guide
Procedures
Possible causes
Electromagnetic interference (EMI).
Troubleshooting steps
1. See (2. Examine the environment on page
high-frequency signals such as cell phones, microwave ovens.
2. Move the computer to different locations nearby to determine where it fails and where it
does not fail.
3. Test with a verified working computer in original factory configuration.
4. Consult with support.
Procedures
Possible causes
Power-saving mode; multiple-display setting.
106). Pay attention to external power source,
ENWW