Zerk2012 :
Flash is what your doing updating the BIOS.
What are you doing with the PC when it reboots.
Could list all your parts also.
My BIOS is the latest version, I checked. Usually when it turns off and on it's a few minutes after I've logged in, or sometimes even as it's in the middle of booting up. It's random, sometimes I just let it sit there to see if it crashes, sometimes I'll try to open programs, web browsers, etc and it still crashes. Sometimes I can use it just fine with no crashes.
https://gyazo.com/b0026c958b7a051d1084375fc5fc815a This list is outdated, the things that have changed is I now have an EVGA GTX 1070 superclocked, I ordered the same memory to give myself 16, so I have 4 sticks in my MOBO, have a 3TB HDD, same brand I think, and running Windows 10.