I have a pre-built with a 2080 super in it and it has less than 100 hrs on it. When I'm playing games it will shut off completely. Sometime I can game all night and not have the issue. And sometimes it happens after 30 minutes. I took it to a PC repair shop and they told me my GPU was fried. It didn't sound right to me. I've replaced the PSU and it still does it. Mad temp I've gotten on the GPU is 79c. Can anyone help? Is the GPU really fried? I installed m.2 memory in it. Does this have anything to do with jt?