Hi! First Custom build ever, extremely new to PC building so go easy when explaining stuff! Only one of my three case fans are working. They're all plugged into sys fan ports. But only one is spinning. I'm using a Corsair 760t case, but only the front top one plugged into sys fan 2 is spinning. I've tried switching the plugs around. I've googled for hours and looked around the BIOS but I don't know if the other 2 fans or just faulty or i'm missing some super hidden option to enable them! Please help!