PC Randomly Rebooting During Gaming

esturn

Honorable
Oct 22, 2013
4
0
10,510
This has recently started up and is now getting more frequent - randomly (and only during gaming) my PC will reboot itself. No warning messages, no blue screens of death, just one second the game is playing and the next second I'm looking at the PC run through it's start up routine.

I'm really puzzled here as most of the components are new or relatively new, never have been overclocked, etc. Brand new motherboard and processor, brand new video card, one year old modular power supply, etc.

What could be causing this, and what can I do to find more information?

Thank you.