Originally Posted by Arizonian
Heat rises so have all your fans blowing in except the top as the exhaust. Also I'm not sure if you can but if you can remove the bottom HDD cage if you have your HDD on the center cage would open up air. Check my sig photo in profile.
If that doesn't bring temps down the blow em all in with the back fan as the exhaust. Try both scenarios and see which might lower temp.
MSI Twin Frozr II or any open GPU non-reference cards do blow the heat coming off it into the case. They do cool the GPU better but if air flow is being restricted inside one is better off with reference cards with air out the back.
The non-reference cooling is sweet for overclocking however. They just came out with a MSI GTX 560 Twin Frozr II Gold Edition that would look really nice inside any rig with window side panel to gaze in for aesthetics.
The open air cards gather more heat with two or three cards as well as they heat each other up as hot air comes off them inside your case. Good case cooling however is key with those cards.
Let us know which worked best for you with your fans and if your bottom HDD cage is removable or not. Good luck.
There is alot of debate about this.
And if you think about it, what I am about to say makes sense.
Hot air from a camp fire is VERY hot. It thus creates a lot of upward force and you can feel the wind from it even.
The "hot" air in a computer is not near as hot. If the fans are slightly moving air down and out the side panel of the case, the air is not hot enough to disrupt that air flow at all. The fans will easily move all air in one general direction, regardless if it is hot or cold air.