Why are cooling fans sometimes loud?

Q: Why are cooling fans sometimes loud?

A: Under normal circumstances, the higher the speed of the CPU fan, the greater the noise. If the abnormal noise occurs for a long time, then the fan itself is not a problem. And the reason why fan noise, from temperature control heat. When the CPU task processing is frequent, the temperature will gradually, the cooling fan will take the initiative to improve the speed, and then play the effect of cooling.

Usually, the temperature of hot summer, the fan speed relative to each other. In this case, users can try to assist the cooling system, the use of convective air to the external cooling of the notebook, if it can be in the air-conditioning room, the effect will be better. In addition, when the user is executing a large application or game, the fan speed also increases accordingly.

It is noteworthy that if the fan for a long time sound, it is likely to come from the dust or shaft bearing friction between the user to recommend a regular notebook dust or oil-related after-sale repair and maintenance.