

Thanks! Jan 29 09:26:24 fedora23 mcelog: Hardware event. Can someone tells which part of my hardware is broken from the log? Or how can I understand it better? Below are the errors that mcelog shows, repeatedly. Since the freezing happens across OS, I'm convinced that some of my hardware is broken. It also didn't freeze when I were running some python homework code and all 16 cpu-cores reach 100% usage. But it never freezes when running diagnose tools. It sometimes freezes after watching YouTube for 30 minutes. The funniest finding in this frustrated situation is that the computer freezes at the most unexpected moments: It can freeze when I'm just using the file explorer + terminal.

I know this configuration looks like a gaming computer but I've never played a game on it or overclocked.

I also did the following tests and they all report no errors: (at first I suspect the freeze is caused by browsers)
