Originally Posted by Fallengod
Whats the best software to control CPU fan speed? Speedfan does not work for CPU fans, I think it has to be plugged into the mobo case fan plug to mess with it.
I was just wondering what everyone else uses.
Speedfan can alter any voltage or PWM of a fan -- IF the sensor chip supports it
The big problem nowadays is so many mobo mfgrs are skimping on what used to be a very common feature -- allowing software to modify the voltage of a 3-pin header. If you get a good board that can do this, it means that you can software control fans by directly changing their voltage, without the 4-pin pwm. I have had systems before with 3-4 fans, 3-pin, entirely controlled by software cooling.
I found that the boards that came with a vendor supplied/advertised 'cooling software', such as ASUS generally had awesome support for changing 3-pin voltages via software. A board that isn't advertising software cooling might not have this feature and you are going to have to adjust the fans with a 'fanmate' resistor + dial device.