|Thanks for the reply.|
From my research it appears that video problems will show two things, a blank screen with a cursor blinking or even ghost images on the screen. Also many report the screen going black while playing video games and/or videos. I do neither. I have none of these symptoms. As to overheating. I have not checked the temps, however, I run a dual fan cooling plate at all times and immediately after it shuts down I can restart it and it my run for days or weeks. If it would overheat I wouldn't think it could be restarted immediately with no further problem. It restarts normally with no options for check disk , safe mode or any indication that a sudden shut down occurred. Thanks for the help though. I really appreciate it.