There is a loud noise when the computer is turned on. After a while, it becomes a little sound. What is the situation? ? ?

The computer has a loud sound when it is turned on. After a while, it becomes a little sound. What is the situation? ? ?



There may be too much dust on the fan, you can blow the fan with the cold air of the hair dryer






Immediately dust inside the chassis,






Fantastically add some oil to the fan





If you have a long time, there is more dust.





Clean up the dust inside the chassis. Check the fan to add some oil





Look at the fan of the computer, all, is not good contact






See if the sound of the CPU fan is





This is the sound from the host fan. . . There is an electric fan that is not working properly. . . . .






The sound of the fan turning, normal.






The reason for the fan