"Micro Cooling Fan" transport the most important parts is bearing a long time the lack of oil, will generate noise such high-speed rotation. Therefore, we only need a few drops on the fan bearing lubricant, sewing machine if you do not use can be replaced. But be careful do not use oil instead, because of its relatively large particles, easy to damage the bearings. "Micro Cooling Fan" fixed blade vibration noise is also an important part of the fan noise, because loose leaf on bearings and bearing wear resulting in the gap becomes larger and so on, so only need to remove the sub-sector, the screws tight button, so After firmly fixed, it will not shake. In addition the use of poor quality polished blade cooling fan, in the production of this type of fan due to defects in workmanship, the center of gravity may not be in the blades on the axis, the formation of "eccentric", "Micro Cooling Fan" use over time fan of "eccentric" phenomenon will become more serious, it will not only produce noise, serious damage may also CPU. In this regard, can be removed altogether, and then thread hanging from its center position, let it sink still to see which direction to put an end to sink in light grinding wheel a few times, and then tested, has been After the fan can be installed in a horizontal position and then go to.