I have an asus coolermaster RC 335 with an m5a78-m lx motherboard, fx-4100 3.6ghz and i currently have the KFA2 GT 620. I am looking to upgrade to a MSI gtx 670 OC Edition (yeah i know there'll be some bottleneck but i might upgrade my cpu later). I have a 600w PSU which should be enough i think. Will it fit in my system though? Thanks It. This is the cover: http://www.saintclassified.pk/uploads/desktop-computer-for-sale-240-ddr5-cooler-asus-motherboard-graphics-cooler-master-casing-ad-285633.jpg