So I just built my new rig (the one in my sig) and I am having an issue. After installing Windows 7, the computer was working fine until I left it for about 10 minutes; when I came back, the computer was off, but the LED light was still on. When I turned it back on, the screen asking which mode I wanted to boot from came up, and I just said to start normally. It started fine, but again, in a few minutes, the computer would just shut down (screen goes completely black) and the power LED stays on. Does anyone have any idea what could be wrong? I actually just noticed that my restart button does not work, so I think I may have the cables switched around on it, but everything else in that pin area works correctly (power button/LED, HDD LED), and I don't think that would have any part in it...