i already have a gpu i have 2 ASUS GTX680-DC2-4GD5 GeForce GTX 680 4GB 256-bit and i love the thermal armor look and i do use case fans and im not werryed about money and jw can i fit 2 ASUS GTX680-DC2-4GD5 GeForce GTX 680 4GB 256-bit on the sabertooth plus a asus rog sound card