Hook those fans up to some regular molex connectors from your power supply, and check if they actually spin up to 2000RPM, compare by sound, the difference between 2k rpm and 1.2k is audible i think...
Also, what kind of fans are they, 4pin I assume?
Ok, I hooked it up and couldnt hear a difference... although I could feel a bit more suction when i put my hand near the side fan so that would (I assume) mean faster RPM. I think I'm going to have to hook my Exhaust fan into the PSU so it can spin at 2k also.
as to the fans, they are molex (I think this is the one that goes into the motherboard?) and came with a 4pin adapter.
Also, what are your opinions on the temps?
Oh, and sorry to bombard you with so many questions, but do you know if these volts are normal/within range?