First, prepare a small bottle of engine oil and a toothpick, then remove the power supply from the chassis, open the shell of the power supply, remove the fan, find the dust on the fan blade, and clean it with a soft brush. After cleaning, there is usually a label in the middle of the front of the fan. Uncover the label and you can see the bearing of the fan. Dip the lubricating oil on the bearing with a toothpick. Pay attention to the right amount of oil. When finished, stick the label back to prevent dust from entering, and then restore the fan and power supply. Need to be reminded, don't use engine oil casually when refueling the fan. Inferior engine oil not only does not help lubrication, but will accelerate the wear of bearings. We should choose special products or use high-quality sewing machine oil instead.

2. Replace the mute power supply fan

Users can also consider replacing the silent power supply or fan. At present, there are many silent power supplies on the market, which are usually strictly tested and can effectively reduce the noise of power supplies. In addition, a better cooling fan can be replaced for the power supply, and the process of replacing the power supply fan is also very simple. The key is to pay attention to the connection between the fan and the power supply.

3. Buffer and shockproof

For the power supply, it is not only the connection between the fan and the power supply, but also the connection between the power supply and the chassis. In addition to firm fixation, you can also add buffers such as thin cloth and rubber pad at the contact position, and even buy special power supply shock-proof products.

4. Prevent large current shock

If the noise of the user's power supply is caused by the high current at the moment of starting, you can install a filter or switch to a better quality power supply to prevent the noise caused by the impact of high current. You can also buy some smart power sockets with filtering function to connect to the host to ensure that the computer power supply is not disturbed by external current.

It is suggested to change it to 100 yuan!