"Micro Cooling Fan" Noise is increasingly focused on a lot of players, for the "Micro Cooling Fan" is the noise come from the fan. A little bit of difference between the blade and will not cause a big impact, but to know that in fact the tiny vacuum region may be the biggest source of noise, many manufacturers are "Micro Cooling Fan" fan up and down no small effort, mainly through some strange little reformed to achieve better mute diversion effect. Openings or guide lines on the blades increase, the main purpose is to reduce the vibration caused by the blades due to the airflow. Of course, to reduce vibration, noise will be decreased, the air will flow more smoothly in accordance with a predetermined flow, achieve better cooling effect.