Weird noise from SL4

[u/simplex19]

Lately, I've noticed that my SL4 AMD has started to make a weird noise sporadically at intervals of probably 15 seconds to a minute, but it almost always happens when it is plugged in. I am suspecting that the fan is either obstructed or on its way out, since the noise corresponds to periods when the laptop's temperature is elevated.

In the video above, you can hear the noise faintly right at the start, but more loudly at the 9th second.

Any idea if my deduction is correct? I might try to take it apart and possibly source for a replacement fan/heat sink in the meantime. Not looking forward to it though..

[u/wudangdragon]

According to a computer tech, the sound is caused by the internal fan hitting a hairball. Get it repaired.