Laptop GPU fan spinning at maximum speed constantly
4.5
The GPU fan runs at 100% speed even when the system is idle.
Symptoms
- Very loud noise
- Vibration
- Cool air blowing out
Possible Causes
- Sensor failure
- Corrupt BIOS/Firmware
- Malware
Step-by-Step Fix
1
Reset BIOS
Restore BIOS settings to default.
2
Update Firmware
Check for VBIOS or system BIOS updates.
3
Scan for Malware
Ensure no hidden processes are taxing the GPU.
When to See a Technician
Constant max fan speed often suggests a communication error between the thermal sensor and the controller.
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