Although it is the exhaust fan that is responsible for the most of the noise output which I discovered when I temporarily set its rpm to zero. My main aim is to reduce the amount of noise made by the system when it isn't being used for gaming. Because of this fact pwm controlled fans can have lowers speeds than voltage controlled ones. If there is speed control on the second pin then that means it adjusts the speed by controlling the voltage, unlike pwm which controls the speed by turning the power going to the fans on and off in quick succession. PWM fan headers will always supply a full 12v on the second pin and have speed control on the 4th pin. Speed control just means it's capable of adjusting the speed. This item is configurable only when 3rd System Fan Speed ControlĬlick to expand.Not trying to change your mind. This item is configurable only when 2nd System Fan Speed ControlĪllows you to control the fan speed. Options are: 0.75 PWM value /oC ~ 2.50 PWM value /oC.Īllows you to control the fan speed. This item is configurable only when 1st System Fan Speed Control They can also be voltage controlled:Īllows you to control the fan speed. This is what I see in the manual, which leads me to believe they are PWM and that you can set them up that way. I'm still certain they are PWM, all but the 3 pin, from my reading of the manual. Click to expand.It's not necessary to try to change my mind.
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