Computer buzzing then restarts

[ABCDEF]

I was playing cold war when i heard a loud buzzing sound. It didn't come from my computer though, it was in my headphones, and then my computer just restarted itself. It sounded like what you hear when you bluescreen except there was no blue screen. I was wondering if anybody had any ideas as to what caused this.

[Geeksta84]

Could be a ton of different things. If your super curious or it continues to happen check Event Viewer and see if there is anything under Critical or Error section from the time that it had the issue. If there is anything besides Kernal power error, google it, if it was just kernal power error it could have just been fluke power loss from house or power supply or an actual issue with PS.