Guild Wars 2

When i hit the play button and the game starts im getting one of this 2 errors 100% of the time.

1- the computer resets
2- the monitor go to standby, the computer “keep working” ie no shutdown. but is imposible to do anything at all. if im playing music, the music stops to.

my specs

FX 8150 @ corsair H100
Asus v formula
msi GTX 680 (i have tried both drivers, WHQL and beta, same results)
2×4gb corsair vengance sticks
corsair AX850 PSU
corsair force GT ssd drive.

The computer is brand new, so there is no dust at the moment. Good cooling, playing skyrim on ultra settings im getting (max temps) 48 ºC on cpu and 58 ºC on the gpu.

This trouble start a week ago out of nowhere. No hardware or software installed of any kind, just GW2 updates.

I have tried differents driver’s with no success, i even wipe everything from the disk and go clean.. same results.

I have stressed the computer using multiple benchmarking programs… no shutdown.

Please excuse my english, is not my native language. I hope that you can understand my problem.

EDIT: attached the log file from gameadvisor.