Causes of loud noise from cooling fan

The working principle of the cooling fan is realized according to energy conversion, namely: electric energy → electromagnetic energy → mechanical energy → kinetic energy. The circuit principle is generally divided into various forms. The performance of the fan will be different with different circuits. Cooling fans, English Name: cooling fans. The technology and performance of cooling fan have fully reached the mature stage, and new technologies continue to appear. The reason for the loud noise from the cooling fan.

Software problems

It may be that the software containing virus is installed, which leads to problems in the computer system and affects the operation of the cooling fan. However, the probability of this situation is low and can be basically ruled out.

Solution

If you happen to encounter this situation, it is your best choice to check and kill the virus with the system’s own anti-virus software or with the help of a third-party anti-virus software.

Too much dust

When the notebook is used in a bad environment, a large amount of dust will enter the cooling fan through the cooling hole, resulting in the poor cooling effect of the notebook. In order to improve the cooling effect, the computer has to speed up the fan speed, resulting in a loud sound from the fan.

Solution

You can disassemble the rear cover of the fuselage and use small brushes and other tools to clean the ash. If you are not confident about your technology, you can contact the after-sales service for this work. (it is recommended to clean once every three months)

Aging and volatilization of thermal conductive silicone grease

The function of thermal conductive silicone grease * is to ensure that the CPU and the radiator can fit closely. When the computer is used for a long time, the thermal conductive silicone grease between the CPU and the heat dissipation module is easy to volatilize and dry into powder. At this time, the thermal conductivity of the heat dissipation module will decline, and the fan will make great noise.

*Thermal conductive silicone grease is commonly known as heat dissipation paste. Thermal conductive silicone grease is a thermal conductive organic silicone grease composite made of organic silicone as the main raw material and materials with excellent heat resistance and thermal conductivity. It is used for heat conduction and heat dissipation of electronic components such as power amplifier, transistor, electron tube and CPU, so as to ensure the stability of the performance of electronic instruments.

Solution

Remove the back shell of the notebook computer, unscrew the screws of the heat dissipation module, clean the previous thermal silicone grease, and reapply new thermal silicone grease. If you don’t know how to operate, I suggest you hand this step over to the enthusiastic after-sales brother~

Fan failure

Different from the above situations, if the cooling fan itself fails or structural damage, it will make an obvious abnormal sound and make abnormal noise.

Solution

If you can contact the official after-sales service during the warranty period and hand over the laptop to the enthusiastic after-sales brother for maintenance, the technical partner can also disassemble and replace it by himself.

Other hardware problems

The problem varies from case to case. For example, the performance of the hard disk is poor. Such a hard disk will generate a lot of heat when working. The temperature of the whole laptop body rises, resulting in high-intensity operation of the cooling fan and noise.

Solution

Replace the faulty hardware.