Make your boxing gets air, I'd open up the box and blow lightly everywhere, removing dust. Then I would get a house hold fan, and run it behind the computer, this is what I do in the summer, prevents over heating.
i hate you people. one person makes it clear that it's either overheating or a problem with the psu, then a bunch of other people same the same ---- but switch a few words around and add some ---- in. IAKSNDASKJdmn adlam, you all suck.
There's a reason you have negative 10 rep. It's because you suck at the internet. And if you suck at the internet.