I have recently just purchased Black ops 2 on steam, i played it for a while, then, BAM. My PC shuts down. When i power my PC back on it tells me that power surges were detected, and ASUS Anti Surge was triggered from an unstable power supply unit. This only happens when playing black ops 2, i have tested other games: CSS, DayZ Etc. and no problems with any of them. This is very odd, i hope someone will shed some light on this situation.