For Christmas I got another 120mm case fan (aerocool shark 1500 rpm) and I tried mounting it at the top of the case to suck out hot air as I have 2 intakes and 1 exhaust already but I couldn't seem to get the right screws to screw it in at the top, my case (aerocool strike x gt) came with long screws for the top of the case but they are too thin to screw into the fan. So instead I mounted the new fan on the side door on the top fan slot by the CPU as an intake and today when I played a new game that I got for Christmas (BF3) I noticed the CPU temps would get rather hot (I am using the stock intel cooler, bear that in mind) I was getting a max temperature of about 80 degrees C after a roughly 2 hour gaming session. Would I benefit from making the new fan an exhaust by the CPU or would I be better off, or is there a secret way of mounting a fan up there at the top as an exhaust that I son't know about as I imagine that way would be the best way to do things. Also my graphics card could handle BF3 at all max 1080p with 60+ FPS. Thanks. EDIT - To clarify I have 2 intakes at the front, one rear exhaust and the new fan as an intake on the side door by the stock CPU cooler.