Consumer Electronics and Computer SystemsElectronicsHow to make

Computer fans

Nowadays we often need to repair our PC by ourselves. In this article I will try to consider the common problems with processor fans, power supply, video cards and computer cases.

PC (case) fan; laptop processor cooling fan

procesor fan
procesor fan


1. Noise from the fan – this is a common problem when starting the PC. The reason in most cases is the lack of lubricating oil on the bearing or the sleeve (depending on the type of fan)

2. The vane stops – due to ejected lubricant and / or dirt on the bearing or the sleeve. This leads to heating or overheating of components. I would advise you to examine the machine from time to time (once in one or two months), especially in the summer when it is hot, and if you notice a failure or a suspicious noise of the fan, you need to take action.

3. Absence of power supply to the fan.

4. Dust

What can be done:

1. The cheapest option is to lubricate the bearing or the sleeve. This is not recommended, but if there is no other option, this is a temporary solution.

– Remove the sticker on the fan. Then, if there is a cap protecting the axis, remove it, too.

– Take fine machine oil and put a single drop.

– Move the vane until you feel that it moves without effort.

– Wipe the oil on the fan housing so that you can put the sticker on again.

– Mount and test the fan.
2. Purchase a new fan with the same characteristics at the nearest electronics store. Itisadvisable.

3. Clean with a soft brush (for painting or drawing) the dust on the vane and on the support bracket.
4. If you have done everything described above and the fan still does not rotate, the reason may be that it doesn’t get power supply. Or maybe it cannot receive the information properly (the processor fan and some video cards have the option for revolution regulation and stop-start functions).

– You have to check whether there is power supply using a multi-meter. Usually the problem is in the power supply unit of the PC and replacing it solves the problem.

– Another option is to check the settings in the BIOS. Most often case fans can be switched on and off from the BIOS.

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