i believe its my power supply honestly i have an amd radeon hd 7770 graphics card amd athlon 750k cpu 1 tb HD MSI FM2 A55M-E33 Mobo and my PSU is a logisys 550w as i said i think its my psu as when i try to run far cry 3 on max settings it runs for 5 mins or so and then just shuts down and no its not just rebooting its as if im taking the plug and yanking it out.