I know one fan is running at full speed because it sounds like a helicopter and is plugged into the psu. They are both cooler master sickleflo fans and are both 2 pin. Can i change it because I don't like that it sounds like a chopper but i can manage. I use speedfan to check temps and stuff but speed fan says "fan4" and "fan5" they both say "0rpm". Idk if fan4 and fan5 is new im not sure but Idk.