I have a gigabyte ud3h motherboard. It has only 4 pin fan connectors in an antec p280 case. I bought some corsair sp 120 fans for intake front fans. So I have a 3pin to molex adapter already. But the motherboard gives me a molex to 4pin adapter. Can I hook the fan up to the 3pin to molex and then the molex to 4pin and control the fans with pwm like speedfan? Thanks!