HP ZBook Power G10 Maintenance And Service Manual page 106

Table 6-19 Issues, possible causes, and fixes (continued)
Items
The following steps are for authorized providers or technicians.
Procedures
Troubleshooting steps
1. Update BIOS and drivers.
2. Perform hard reset (8. Hard reset on page
3. Perform soft reset (9. Soft reset (Default Settings) on page
Power-related issue
1. Verify functionality of AC adapter alone. If it does not work, test with a verified
working adapter.
2. Verify battery alone. Verify that battery is not depleted. Test battery using HP PC
Hardware Diagnostics (UEFI) tool.
3. Verify connection of power button and cable.
OS custom settings
1. Advise users to reset power options and close all applications that are not in use,
including applications in the background.
2. Test with a confirmed working operating system to isolate custom settings by
users or any conflicting applications that cause shutdown.
Thermal-related issue
1. Verify thermal condition:
a. Test fan using HP PC Hardware Diagnostics (UEFI) tool
Diagnostics and Tools on page
b. Check fan and connection. Reseat fan cable.
c. Be sure that no obstructions or dust are in heat sink fan, fin, or vent.
d. Test with a verified working fan.
e. Remove old thermal compound and pads and replace with new compound
and pads.
2. Verify thermal solution:
○ Use Thermal Monitor tool (available only to authorized service providers/
technicians) to perform stress test (processor and GPU)
Diagnostics and Tools on page
limits after thermal condition is serviced.
Hardware-related issue
1. Check for any signs of loose connections, bent pins, stray wires, dust, nearly faulty
parts (bulging/leaking capacitor).
2. Verify that lights are solid.
3. If shutdown is reproducible, test essential hardware configuration:
a. If no issue with hardware configuration, reinstall one nonessential component
at a time to determine faulty hardware.
b. If issue persists, replace essential hardware with a confirmed working part,
one at a time. If the computer does not boot, replace system board.
(4. Update BIOS and drivers on page
79)
73)
73), and verify that thermal sensors are within
Intermittent shutdown
73)
80)
(6. HP Hardware
(6. HP Hardware
97