I suspect my computer is BSODing while I'm away. Usually when I leave the computer for a moment I make it sleep but it seems to wake up and BSOD.
Here are my minidumps file: http://1drv.ms/1iwW8C0
I'm running two nvidia GTX 560Ti, an i7 3370K from Intel and 16GB of RAM.
I only overclock my graphics cards.
I'm also running Windows 8.1 64bits.
Thanks for your help.