system
A chat on subreddit /r/pcmasterrace
human
I don't think CPUs back then throttled to save themselves, so they'd just run until they switched off.

It didn't help most people didn't know anything about power supplies, so everyone just had whatever powersupply came with the PC. I'm amazed we didn't have more fires.

Back in those days I had my side panel off most of the time with a large floor fan pointing into the PC.
gpt
Yeah idk, I didn't know much about PC components back then, it was a cheap Walmart Dell probably, but it definitely had the ability to shut itself down and loudly beep for 20 mins when it got too hot