I have this HUGE NVidia 770 gtx that was constantly leaning in my case. I don't like when things are not straight, so I designed an adjustable bracket to keep it horizontal. The bracket makes contact with the gpu shroud between the two fans and its secured in place using 3 screws on the pci expansion ports. You can use the default thumbscrews that came in with the case, but you have to leave the ports behind the case open, or you can change the thumbscrews with normal screws and keep everything closed.