The greater the power "Micro Cooling Fan" the stronger the wind, the cooling effect is better. The fan power and fan speed is directly linked, meaning that the higher the rotational speed of the fan, the more powerful fan. Currently sold on the general computer market "Micro Cooling Fan" is 12V DC power from 0.XW to 2.XW range, then the size of the power you need to heat your CPU to choice. To remind everyone that, not one-sided emphasis on power, with the CPU only needs to match the power itself can, if the power is too large, not only to enhance the cooling effect is not much, but may increase the workload of the computer, eventually shortened CPU and "Micro Cooling Fan" life. Therefore, the choice of CPU power level should be accompanied by the amount of "hot" line.