1. Desktop computers have three kinds of cooling fans: CPU processor cooling fan, chassis cooling fan and computer power cooling fan. These three fans are installed in different positions, and the methods of replacing cooling fans are different. Chassis cooling fans are best operated.
2. It is best to replace the cooling fan of the chassis. When replacing the cooling fan of CPU processor, it is necessary to replace the 4-pin fan with speed measurement, and carefully remove the fixing screw of the cooling fan to prevent the radiator from loosening, otherwise it will be coated with silicone grease again.