Quote Originally Posted by 'beyond-tec',index.php?page=Thread&postID=152286#post15228 6
4. I currently only use exhaust fans.

;(
That's got to be it. Without an intake fan, your exhaust fans suck all the air out of the case meaning little or no cool air flowing across your heatsinks.

Good luck with the new case, I too have a Coolermaster (Cosmos case).