Is the computer fan ringing because of the cold weather or the dust that has only been used for more than 3 years?

According to what you said, it may be caused by the following reasons:

1. The fan is not installed firmly or firmly. You can check the steel plate that fixes the fan to see if it is not elastic enough to play a fixed role. If so, please remove it and replace it.

2. If the fan shaft is not straight, the collision with the fan box will also cause this phenomenon due to the large swing during rotation. In this case, it is best to replace a fan.

3, fan aging is also a possible reason, because the friction of the fan bearing is too large, it will also make a lot of noise, so you can add some oil to the fan shaft. The specific operation is to carefully uncover the label on the fan shaft, cover it after refueling and stick it firmly with glue.

4. There is also a possible reason provided by a netizen: it is a voltage problem. You can look at the speed of the fan to see if it is too slow. If it is too slow, it means that the working voltage of the fan has not been reached. You can find a high-power power supply to replace the old one, or replace it with a low-power fan.

The fan can be removed. The specific method is: press the longer end of the spring steel plate of the fan down with your fingers, then push it backward to make the steel plate withdraw from the fixed groove, then grab the heat sink and break it off with a little force to separate the heat sink from the CPU. The fan can be removed. It must be noted that if your fan heat sink is bonded to CPU by white silicone grease, you can add a little silicone grease when reinstalling the fan; If it is black silicone grease, because this silicone grease will solidify after coating, you must carefully remove the solid silicone grease from the back of CPU, reinstall the silicone grease and then install the fan. Of course, only the CPU fan can be replaced without replacing the heat sink. Generally, fans are fixed on the heat sink with screws. Just remove the screw and replace it with a fan with the same diameter. Pay attention to the alignment of the installation, otherwise it will affect the heat dissipation effect.

Ordinary CPU fans can usually be done for twenty or thirty yuan.

It may also be because of automatic temperature control technology.

The temperature of the machine is low when it is started ~ so the fan speed is low ~ the sound is low ~

After you turn on the computer for a period of time, you use more resources because you run more software ~CPU processes more data ~ temperature rises ~ automatic temperature control technology will speed up your fan ~ it will cool down ~ you can change the fan ~ or clean the chassis, and the fan ~ oil the fan ~

Recommend Fan AVC or Jiuzhou Fengshen.