Can someone give me some advice on how to proceed here. I installed my new Heatsink(Thermalright AX-478) and Fan(Thermaltake Smartfan II) and just installed the heatsink right to the cpu I didn't put the fan thermal sensor under the cpu. Now I realize that the smartfan technology is not going to work now. But I was wondering the cpu mobo has a built in thermal sensor can't it get a reading from that. Or worst case can't I just hook up the variable control and not have to take the heatsink back off?

Thanks guys