The reason and repair method of the fan of the desktop computer is loud

The computer used for a long time, of course, there will be a small problem, such as fan noise, computer cards and other problems, the following rain forest wind explain the downfall of the computer fan loud reasons and Repair methods:

First, check the common causes of brain fan loud:

1, bearing lack of lubricating oil

Bearing for the fan transport played a major role, when the user computer for a long time, bearings lack of lubricants, the computer in the process of high-speed rotation will produce noise. It is necessary to drop a few drops of lubricating oil in the fan bearing, if there is no lubricating oil, can also be replaced by sewing machine oil, but do not use edible oil to replace, because the edible oil particles larger, will damage to the bearing.

2, the fan leaves loose

When the fan leaves loose, the blade in the bearing loose and the bearing wear causes the gap to become larger, the solution is: The fan is removed to check, the screws tighten, prevent again vibration.

3, fan quality problems, eccentric phenomenon

If the user is using a poor quality cooling fan, as a result of the process, the center of gravity may not be in the axis, the formation of "eccentric" phenomenon, when the use of a long time, fans of the "eccentric" phenomenon will become more and more serious, this will not only produce noise, serious damage to the CPU. Workaround: Remove the fan, then hang it in its center position with a thin line, wait until it is still and see which direction it sinks, gently grind the sinking end on the wheel, then test until the fan can be positioned horizontally, then install it.

4, it is also recommended that users develop regular power boxes and the circuit board of the dust to clean up.

Second, the fan simple repair method:

1, the fan dust clean, to avoid in the process of installation dust into the bearing;

2, the bearing on the adhesive tear off, will be on the axis of the card pin removed;

3. Use tissue or soft cloth to wipe the residual oil in the bearing, and also wipe the shaft rod;

4, add a little butter lubrication in the bearing;

5, and then the cans of aluminum cut under the bearing card pin diameter as big cut a piece, and dug in the middle of a just can pass through the shaft of the hole, will it pad between the bearing and the card PIN, reduce the bearing axial movement and parallel movement of the distance. If the gap is larger, it is necessary to cushion a few thickness suitable, so that the bearing before and after the moving distance under 0.5mm;

6, seal the oil well, add a little butter lubrication, finally the fan will be fitted back.