A noisy fan is due to an obstruction in the air flow.
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As the the cpu gets hot, the sensor sends a signal to the system telling it to turn the fan on in order to flow some air and sink the temperature. If the temperature keeps rising, then the system speeds up the fan because it thinks that the flow is not enough.
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As the the cpu gets hot, the sensor sends a signal to the system telling it to turn the fan on in order to flow some air and sink the temperature. If the temperature keeps rising, then the system speeds up the fan because it thinks that the flow is not enough. That's the reason you have a noisy system.
Open your laptop and clean the fan and the heat interchanger aside (the copper piece).
A noisy fan is due to an obstruction in the air flow.
As the the cpu gets hot, the sensor sends a signal to the system telling it to turn the fan on in order to flow some air and sink the temperature. If the temperature keeps rising, then the system speeds up the fan because it thinks that the flow is not enough.
Open your laptop and clean the fan and the heat interchanger aside (the copper piece).