HP Elite Dragonfly 13.5 Maintenance and Service Guide - Page 121

Thermal shutdown (hot), Use this information to troubleshoot a thermal shutdown.,

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Table 6-52 Issues, possible causes, and fixes (continued) Items Procedures 3. Perform a hard reset (8. Hard reset on page 68). Performing a hard reset can reset recorded thermal values in memory. Thermal-related issue 1. Verify that fan is spinning. Reseat fan cable before moving to next step. a. Check fan and connection. Reseat fan cable. b. Be sure that no obstructions or dust are in heat sink fan, heat sink fin, or vent. c. Test fan using HP PC Hardware Diagnostics (UEFI) tool (6. HP Hardware Diagnostics and Tools on page 62). Be sure that the fan is not producing loud noise and that fan blades spin correctly. d. Test with a verified working fan. e. Replace the fan. 2. Verify thermal solution Use Thermal Monitor tool (available only to authorized service providers and technicians)(HP Thermal Monitor on page 65) to run stress test (processor and GPU) and verify that thermal sensors are within limits after thermal condition is serviced. User configuration Change Power Options in Windows (for example, choosing Balanced mode instead of High performance). High performance and extensive graphics might cause the fan run constantly to release the heat. Notes BIOS currently omits fan presence detection to shorten boot time delay less than four seconds. Therefore, the fan error is generated based on previous boot to operating system that found system fan error. Fan often is part of thermal solution, including heat sink, heat sink fin/muffler, and thermal grease. Fan replacement requires reboot and fan function verification using HP PC Hardware Diagnostics (UEFI) tool. For more information, see the following links: ● http://support.hp.com/us-en/document/c01007591. ● https://support.hp.com/us-en/document/c01657439. Thermal shutdown (hot) Use this information to troubleshoot a thermal shutdown. Table 6-53 Issues, possible causes, and fixes Items Procedures Symptoms Possible causes Similar to fan runs constantly issue (Fan runs constantly on page 111) ● System shutdown ● Abnormal heat BIOS not up to date, thermal condition (fan, air flow) Troubleshooting steps 1. Update BIOS and drivers (4. Update BIOS and drivers on page 62) and reset BIOS to default. BIOS can implement new fan characteristics and updates for other component. 112 Chapter 6 Troubleshooting guide

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Table 6-52
Issues, possible causes, and fixes
(continued)
Items
Procedures
3.
Perform a hard reset (
8. Hard reset
on page
68
). Performing a hard reset can reset
recorded thermal values in memory.
Thermal-related issue
1.
Verify that fan is spinning. Reseat fan cable before moving to next step.
a.
Check fan and connection. Reseat fan cable.
b.
Be sure that no obstructions or dust are in heat sink fan, heat sink fin, or vent.
c.
Test fan using HP PC Hardware Diagnostics (UEFI) tool (
6. HP Hardware
Diagnostics and Tools
on page
62
). Be sure that the fan is not producing loud
noise and that fan blades spin correctly.
d.
Test with a verified working fan.
e.
Replace the fan.
2.
Verify thermal solution
Use Thermal Monitor tool (available only to authorized service providers and
technicians)(
HP Thermal Monitor
on page
65
) to run stress test (processor and GPU)
and verify that thermal sensors are within limits after thermal condition is serviced.
User configuration
Change Power Options in Windows (for example, choosing
Balanced mode
instead of
High
performance
). High performance and extensive graphics might cause the fan run constantly
to release the heat.
Notes
BIOS currently omits fan presence detection to shorten boot time delay less than four
seconds. Therefore, the fan error is generated based on previous boot to operating system
that found system fan error.
Fan often is part of thermal solution, including heat sink, heat sink fin/muffler, and thermal
grease. Fan replacement requires reboot and fan function verification using HP PC Hardware
Diagnostics (UEFI) tool.
For more information, see the following links:
●
us-
en/
document/
c01007591
.
●
us-
en/
document/
c01657439
.
Thermal shutdown (hot)
Use this information to troubleshoot a thermal shutdown.
Table 6-53
Issues, possible causes, and fixes
Items
Procedures
Symptoms
Similar to fan runs constantly issue
(
Fan runs constantly
on page
111
)
●
System shutdown
●
Abnormal heat
Possible causes
BIOS not up to date, thermal condition (fan, air flow)
Troubleshooting steps
1.
Update BIOS and drivers (
4. Update BIOS and drivers
on page
62
) and reset BIOS to
default. BIOS can implement new fan characteristics and updates for other component.
112
Chapter 6
Troubleshooting guide