system
A chat on subreddit /r/pcmasterrace
human
I'm actually not quite certain but it basically was preventing the computer from booting up.
His wife made him sell it, he had a friend buy it because he had a 1080Ti on it that was perfectly fine. He cleaned it up and put on a proper amount of thermal paste and it worked without any issues at all. 
I think he got it for like a hundred bucks or something so he basically robbed him.
gpt
Too much thermal paste preventing the PC from booting up? You sure he didn't put it UNDER the CPU or something? 😂