Why does it get cold? The fan in the computer case will have all kinds of noise, even if it is turned on for a while?

1. Generally, the cold weather causes the oil in the CPU fan shaft or ball to freeze, or the oil in the power Fan Fan shaft or ball to freeze, which makes the computer turn on loudly. Generally, after the computer runs for a period of time, the computer heats up, the oil melts and the sound will be normal. This usually happens in winter.

2. If the above statement is ruled out, it may be because there is too much dust in the computer and dirt on the fan, which increases the fan resistance, making the fan unable to operate normally and the computer sound is particularly loud. Only dust removal can solve the problem at this time! ! !

There is something wrong with the fan (including the power supply fan) of your computer. This is definitely a resounding start, but it will get better. Because the fan bearing is out of oil, the gap between the bearing and the outer sleeve is very tight at the beginning of start-up, which leads to loud noise. After a period of rotation, the sound becomes smaller due to thermal expansion and cold contraction. The solution is to open the case and find out the noisy fan to add some oil to the bearing, but it won't take long, and the other is to change a new fan.