Host buzz Solution

From the day before yesterday, the old computer in the house suddenly started to beep, and found a way on the internet, saying it was a fan problem. Solved today and found that the old computer had almost no noise.

 

Open the chassis, open the computer, first let the host lie down, listen to the sound, only the CPU fan sound, standing up, then heard the buzz. So I split the power supply, cleaned the dust, tore the adhesive paper behind the power supply fan, and dropped two drops of oil to the shaft.

Now I want to think, that is, the power supply fan is not lubricated, so when the shaft is set up, there is a load, the contact increases, the noise will come, when lying down, the shaft is not so much load, of course, the contact is not that big, and the buzz is naturally too small to be heard.

 

It seems that there will be something like oil in the house in the future.