I currently have my cpu water cooled and the fan speeds are controlled by asus ai suite so as it heats up the fans ramp up a little. My issue is i am going to be water cooling my gpu also on a seperate loop and in the asus software there is no option for the fan headers be be controlled by gpu temp that i am aware of. Also if the only way is using some other software how do i know that the fans are responding to that software and not the asus ai suite or bios