im building a new rig and im wanting to crossfire two radeon 6990's on a asus p9x79 deluxe mobo. while doin research i found that the 6990's run hot when crossfired so i was going to use the accelero twin turbo 6990 (x2) to solve the problem but i dont know if they will fit...is anyone running anything similar that can help or know whether or not it will fit? thanks in advance.