I'm about to take everything apart and put it back together. Wish me luck.
I've been without a computer for a month.

Originally my cpu was overheating, I reapplied thermal paste (for the first time in 9 years).
Then I think taking the ram out and starting it with 1 stick worked so I put the other back in.
Then it would run for 2 hours before turning off.
And now it won't turn on.
So I borrowed my friend's PSU to see if that will work but I doubt I hooked anything up right as I was just winging it.

God give me strength.