(SOLVED) Minecraft shutdowns PC after 10-20 minutes without any overload or overheating involved.

I would be playing normally, no overheating or overuse of RAM, and all of a sudden, Minecraft would appear to go fullscreen into a blackscreen (because it fills up the screen from the normal sized window to fullscreen) and then after 10 seconds of having a blackscreen with, no way out of it, my PC just reboots itself, and this hasn't happened with any other game so far, excluding Minecraft, which has lead me to believe that it is a game-related issue. I haven't tried reinstalling the game but I will attempt to do that now. In case that solves it, I'll delete this issue.