Micro Cooling Fan speed the higher the better?

Many people think that the higher the "Micro Cooling Fan" speed, then at the same time, the heat away from the CPU, the more, the easier this CPU cooling, the reality is not so. Assume that the speed of the fan beyond its normative value, "Micro Cooling Fan" in the long run time overload occurs, the heat away from the CPU than it happened in the heat of the high-speed process of change is small, so the more time running length, the greater the difference in the heat, so the fan speed operation is not only can not play a very good cooling effect, but significantly enhance the CPU temperature; Moreover, the higher the "Micro Cooling Fan" of speed, may occur in the work process the greater the noise, the worst case possible for CPU fan perhaps scrapped off;