Hi, I want to put 120mm case fans on top of my graphic card's heatsink, but I don't want them to spin at full speed 24/7. Is there a way to program them so that the speed would auto-adjust depending on the GPU temperature? Or if that is not possible, how do I at least reduce RPM? Do I have to use PWM fans and/or PWM mobo headers or regular fans and 3-pin headers can be used for my purposes as well?
If your GPU came with a fan there is probably a port on it to plug one in(unless its soldered on), if not then I personally would use a fan that comes with a temperature probe and have it as near the heatsink as possible.
but if you can find a program that lets you program specific mobo headers to ramp the fans up when certain components get hot, do that.