Quote Originally Posted by Alik4041 View Post
CONTROL or RUN. If it is controlling it, then you should be able to increase and decrease the rpm on the fan through %. But it is capable of running it either way, but on the 4 pin, you can't control the speed of the fan. I have a 3pin fan controller on my cnps9500 but I can't control the speed (it doesn't matter though since I found my fan controller). But it will run fine. This is all on the 4pin header.
I am able to control the speed of the fan through the % setting in bios.

I thought it wouldn't work, but looking at the fan, I can see that it is spinning slower or faster compared to the %-setting I have set in bios.