My case is a LIAN LI PC-P80 Black Aluminum ATX Full Tower Computer Case. One of the 140mm cases blows right between the 2 video cards. With the Artic Cooling Accelero Xtreme Plus there isn't a ton of space between the cards in slot 1 and 3 being the heatsink takes 3 slots. The only time it is a huge issue is if you run Furmark or a 3D game that really taxes the 2 video cards. In Furmark I have seen it hit 107C after about 45mn. If you have the cards in 1 and 4 then the max temp you see is 82C.