My brothers computer is water cooled and I can list all of his specs here if needed, but basically what happened was his computer was running fine, then when we hooked it up for him back at school it will run for a few minutes, then just turn off. I mean it doesn't reboot or freeze, it just completely shuts off. Now I know the first thing that comes to mind is heat issues, but the temperatures are never abnormal when it shuts down. Any ideas would definitely be appreciated as we're running out of ideas over here, thanks.