"Tiny Cooling Fan" fan speed is adjusted to obtain the temperature information directly from the CPU, the fan without any temperature measuring device. Depending on the CPU temperature, the thermostat will have a different fan speed adjustment corresponding, and fan speed changes can be done four five, or even more, basically feeling infinitely variable. Since the pulse signal is adjusted in real time changes in "Tiny Cooling Fan" Speed ??is very sensitive, speed and CPU temperature changes almost simultaneously. PWM fan in the computer standby time, can be maintained at a very low speed. For example the original package of Intel fan, standby time, CPU temperature in the following four or five degrees, the speed of only one thousand turn, greatly reduces the running noise. The designed maximum speed of more than four thousand turn, only in CPU temperature close to the limit temperature is 65-67 degrees, when to appear. Compared to conventional thermostat "Tiny Cooling Fan" has a greater range of speed control, a better solution to the problem of noise and performance.