Computer restarts or won't boot

SMWesley

Honorable
Sep 17, 2013
19
0
10,510
Mysteriously, and without a pattern of cause, my computer will restart itself. Worse yet, many times when I power it on it will just go to a black screen and then that is it. If I hard restart it over and over eventually it boots up and everything works fine. It has restarted or frozen without warning in many different situations, so I cannot figure out the cause. Most recently it froze ten seconds after it booted up, once while I was browsing Yelp in Google Chrome, once while on the loading screen to play Civilization V. I am not sure where to start in getting this problem solved. Any ideas?

i7-4790 CPU @ 3.60GHz, 16gb RAM, Windows 8 x64bit

Below is a link to my dxdiag log:

https://docs.google.com/document/d/1lE1pm60eA2vpQPq2kdqV9x_5jMOYe4y6hvLyp-3rJZE/edit?usp=sharing