Basically i have a 2000rpm cooler master fan i think it is..... and i was wondering is it better to have the fan blowing air down onto the heatsinks or pulling air off???? :?
If it's the phat xbox 360 and your putting it above the two heat sinks, then i would have it blow air in so then the rear fans can suck the air out, this would cool the front heat sink even more which would reduce your chances of over heating.