I was on my pc because I got a new graphics card yesterday so I put it in and go on sniper elite 4. I was running it at ultra settings and I paused it and went away for about 5-10 minutes and then I come up smelling burning metal. And my pc was restarted. My pc was very Hot and I thought it might of just overheated. I go on sniper elite again then I smell the burning again. Then a loud bang/Pop happend. Now my pc will no longer turn on is it my psu or what?