Laptop Fan Noise Due to Dust and Debris Accumulation

Confirm this cause by inspecting the intake and exhaust vents for visible dust buildup or fibers blocking the airflow. Use hardware monitoring software like HWMonitor or HWiNFO64 to check if CPU/GPU temperatures are consistently elevated even under low load, which indicates that trapped dust is preventing efficient heat dissipation and forcing the fan to operate at maximum RPM.

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