My fan starts and stop

[George_150]

Hello, I have a problem with one of my coolers, it starts and stop by itself, what can I do?http://

 

[fedefury]

there is nothing to worry about. This is a special feature that msi, evga and other companies use to maintain quit noise levels without compromising temps. This basically means it will only spin once the temps are too high

 

[Calvin7]

4-Wire Pulse Width Modulation
(PWM) Controlled Fans

http://formfactors.org/developer%5Cspecs%5C4_Wire_PWM_Spec.pdf

PWM Control: The prevalent method currently used for controlling fan speed in PCs is low-frequency PWM control. In this approach, the voltage applied to the fan is always either zero or full-power.