My case (corsair spec-alpha) has three fans, and a built in fan controller on the front. My motherboard (asus prime b250mk) is advertised to have some kind of intelligent fan control built into the bios. My question is do I connect my fans to the manual controller on the front of the case, or to the motherboard, and if theyre connected to the motherboard will the be controlled automatically dependant upon system load or do i have to adjust the speed with software/bios. Thanks !