I am running a corsair h50 liquid cooler, bought it off a friend brand new, the fan is mounted to the back of the radiator in CPU fan, the actual pump or heatsink is connected to the sys fan. My system was running very quiet before and now the fan runs full speed, I think when I reset my bios that I disabled smart fan. I was told not to use smart fan as the pump needs to run 100 percent, does setting up smart fan affect the pump in any way if i it is connected to sys fan? It's the fan header near my PCI express port, the pump it's self seems to be relatively quiet and I get 26 c on idle, just don't think the fan needs to be running that loud.