Yesterday, I installed a GTX 760 onto my motherboard and then moved my hard drive cage underneath my 5 1/4 bays. Today, when I booted the computer up about 20 minutes ago, it just took me to the American Megatrends screen, which is the exact same screen that I saw when I first posted my computer when doing an external build. After rebooting again, it did it, but the third time it said "detected SATA device" and proceeded to boot up to windows. That's all it does now, is wait for the hard drive to be detected then it boots into win 8.1. Also the screen to go into BIOS hangs around for about 5 seconds where it was about a split second before. I disconnected by keyboard, still same problem. Any ideas?