Computer fan sound big reason and simple repair method

The reason why the computer fan is loud:

1: Lubrication Bearing

Fan transport The most important part is the bearing, long time lack of lubricating oil, so high-speed rotation will produce noise. Therefore, we only need to drop a few drops of lubricant on the fan bearing, if not using a sewing machine replacement can also be banned edible oil to replace, because of its large particles, more easily damage to the bearing.

2: Fixed fan blades

Vibration noise is also an important part of fan noise, because the blades in the bearing of loose and bearing wear caused clearance to become larger, and so on, remove the view fan, tighten the screw button to prevent further vibration.

3: Polished Fan blades

If you use a lower-quality cooling fan, in the production of this type of fan due to the defects in the process, the fan Blade center of gravity may not be on the axis, forming an "eccentric", the use of a long time, the fan "eccentric" phenomenon will become more and more serious, this will not only produce noise, serious can also damage the CPU. In this case, you can tear it down, and then hang it in its center position with a thin line, wait until it is still and see which direction it sinks, the sinking end of the grinding wheel on a few light, and then test, so that fans can be in the horizontal position and then install it.

Suggestion: Form a regular pair of power box and the dust on the circuit board to clean up.

A simple way to repair the sound of a computer fan:

1: First the dust of the fan clean, to avoid in the installation process and then dust into the bearing;

2: The bearing seal sticker is torn off, remove the pin on the shaft;

3: The residual oil in the bearing with a clean tissue or soft cloth wipe clean, and then the shaft rod also wiped clean;

4: Add a bit of butter in the bearing, the principle is ning less not much to avoid serious impact speed;

5: The cans can be cut under the aluminum skin bearing card pin diameter as big cut a piece, and in the middle to dig a just through the shaft rod hole, will it pad between the bearing and the card PIN, reducing the bearing axial movement and parallel movement of the distance. If the gap is larger, it is necessary to pad on a few thickening just to make the bearings before and after the moving distance under 0.5mm;

6: Seal the oil well, add a little butter, and finally put the fan back into the video card.