Does anyone know what the temperature sensor labelled "Motherboard" on this board is actually measuring? Mine sits at 38, compared to CPU at 29/30 (idle), and I was curious whether it was measuring VRMs, PCH, or something different. 38 would be quite high for ambient air temperature around the board...

Speaking of not needing to monkey around, I'm considering choosing one of these over the NH-C14 for my new Ivy Bridge build even though I've got room for either because this one comes with PWM fans. I know I could get the C14 and replace the fans with better ones, or research some other mix-and matc...