Fan suddenly becomes extremely loud

Question

My laptop fan suddenly starts spinning at maximum speed and becomes extremely loud, even when the system is idle and CPU usage is low. This happens randomly and continues for several minutes before returning to normal, and I have already checked for dust buildup and background processes.

gregcoxx · Answer

Even if the system seems cool, sensors might be faulty or reporting incorrectly.

kujawaa · Answer

Even if dust is cleared, thermal paste degradation or hardware issues can cause overheating, triggering the fan to spin loudly.

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Fan suddenly becomes extremely loud

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