220V Cooling Fan power

"220V Cooling Fan" power is the impact of the cooling effect of the fan is a very important condition, the greater the power of the wind is usually the more powerful fan, on the sale of most of the computer market is 12V DC power from 0.X watts to 2.X watt range, which power the size you need according to your CPU heat is selected, the theory is to choose power slightly larger is better, because this "220V Cooling Fan" of speed to high Some. However, I would also like to remind everyone here is not one-sided emphasis on high power, which need to work with the computer itself to match the power, if the power is too large, not only can not play a very good cooling effect, but may increase the computer's workload, which would produce a vicious circle, ultimately reducing the CPU fan's life. Therefore, the choice of CPU "220V Cooling Fan" power level, it should follow the principle of good enough.