A:Answer I do not recall where I saw the information, but I believe the 3 front fans in the front provide the best cooling, if you are not adding additional fans. I think it gets a little warmer if one of them were to be moved to the back. It would be better to add an additional fan to the back as exhaust for better cooling. I have the Corsair ML Series 140mm fan as an exhaust, and it is available here on Best Buy as well.