Hi i bought a pre build pc (yes i know, not that smart) (http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=9166783 this one to be exact) and i then bought a new EVGA PSU and a new GTX 960, now, the computer doesn't post at all. When i turn on the computer, i only get a black screen. When i remove the GPU the computer works just fine. Can anyone tell me if I have any compatibility issues in the build and if not, any suggestions on how to make this system work.