How normal is the computer fan speed?

Generally, when a computer mainframe is working, the number of revolutions of the CPU fan is about 2000-3000 revolutions.

It may be lower in winter. If you are playing a game or running a software, the CPU temperature will reach above 60 degrees, and the CPU fan will reach above 5000 rpm or even higher. If your fan has better cooling effect and lower speed, the optimal temperature of normal CPU is no more than 65 degrees, and it is normal to be below 65 degrees (room temperature is 35 degrees).

If your CPU temperature exceeds 70 degrees, then the CPU may be damaged; If the temperature reaches 80 degrees, it is recommended that you replace a better CPU fan (such as copper tube cooling system).

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Solution to abnormal noise of computer fan;

1, dust jam

The dust accumulation of cooling fan is one of the reasons for the noise of computer chassis fan. We can pry open the top interface of the keyboard, remove the screws at the bottom with a screwdriver, and then remove the keyboard, optical drive and hard disk accordingly, and we can see the cooling fan.

Finally, vacuum the dust on the panel, power supply, radiator, etc. , then wipe the inside of the chassis with a rag dipped in alcohol, put it in the vent to dry, and then put the computer back.

2. The fan shaft is rusted

The computer fan has been used for a long time, and the fan shaft may rust. If the noise is caused by this reason, we can disassemble the computer according to the above steps. After seeing the cooling fan of the computer, we can drop lubricating oil on the fan bearing. We can also use sewing machine oil instead and put the computer back.

3. The fan blades are eccentric

If the screw of the computer fan is loose, it may be that the fan blades are eccentric. If the noise of the chassis fan is caused by this reason, we can disassemble and reinstall the computer fan, and pay attention to tighten the screws of the fan to prevent the fan from loosening again. Finally, just put the computer back.

4. The computer configuration is not high.

If it is caused by low computer configuration, such as aging computer power supply and full-load operation, we can replace the new computer power supply or upgrade cpu, graphics card and other accessories according to the specific situation.

5. Cable layout

The computer fan touching the cable is also one of the reasons for the noise of the chassis. We can first open the computer case, carefully check its cables, rearrange the computer fans that touch the cables, and then put the computer back.

Baidu encyclopedia-computer fan