Radiators are required by "Cooling Fan Manufacturer" forced convection heat loss to accelerate, so a fan of good or bad, on the whole cooling effect plays a decisive role. Equipped with an excellent performance of the CPU fan is one of the key factors to ensure the smooth functioning of the entire computer. Should be at the same air volume, a large "Cooling Fan Manufacturer" operating noise at a lower speed is less than the small fan operation noise at high speed. Another factor is that we tend to ignore the fan bearings. Because "Cooling Fan Manufacturer" To friction between the shaft and bearing a collision at high speed rotation, it is also a major source of fan noise.