Thermal Shutdown (Hot); Stuck Power Button - HP ZBook Studio x360 G5 Maintenance And Service Manual

Thermal shutdown (hot)

Items
Symptoms
Similar to fan runs constantly issue
(Fan runs constantly on page
● System shutdown
● Abnormal heat
● Continually running fan
● Decreased computer
performance
Note

Stuck power button

Items
Symptoms
● Rear power indicator light is on
● Will not turn on when power
button is pressed
● Automatically powers on
The sections below are intended for authorized service providers/technicians.
Procedures
Possible causes
BIOS not up to date, thermal condition (fan, air flow)
130)
Troubleshooting steps
1. Update BIOS and drivers
default. BIOS may implement new fan characteristics and updates for other component.
2. Perform a hard reset
recorded thermal values in memory.
3. Determine whether you are using a correct AC adapter.
4. Be sure to turn power off completely when putting a notebook in a travel bag.
Thermal-related issue
1. Verify thermal condition:
a. Check fan and connection. Reseat fan cable.
b. Be sure that no obstructions or dust are in heat sink fan, fin, or vent.
c. Be sure that the notebook is not sitting on a hot surface that blocks vent intakes.
d. Test fan using HP PC Hardware Diagnostics (UEFI) tool
and Tools on page
fan blades spin correctly.
e. Test with a verified working fan.
f. Remove old thermal compound and pads, and replace properly with new pads.
2. Verify thermal solution:
○ Use Thermal Monitor tool (available only to authorized service providers/
technicians) to run stress test (processor and GPU) and verify that thermal sensors
are within limits after thermal condition is serviced.
See https://support.hp.com/us-en/document/c01657439.
Procedures
Possible causes
Sticky or defective power button.
Troubleshooting steps
General actions
1. Perform a hard reset
2. Perform a soft reset if system can turn on.
1. Disassemble the unit.
2. Inspect power button on the top cover and on the system board to make sure these
buttons moves freely.
(4. Update BIOS and drivers on page
(8. Hard reset on page 86). Performing a hard reset can reset
80). Be sure that the fan is not producing a loud noise and that
(8. Hard reset on page 86).
Common issues and possible solutions 131
79) and reset BIOS to
(6. HP Hardware Diagnostics