I was playing Warcraft 3 the other day and my computer just randomly shut off and now it wont turn back on. I tried plugging it into different outlets and swapping the power supply with my roomates and niether worked. I unplugged everything to the power supply so my motherboard was the only thing getting power and when i do this the fan turns on and spins for like a second, maybe two then shuts off. If I try and turn my computer on again it wont get any power at all, not even to spin the fan but when i flip the switch on the back of the power supply off and on again, it gets another 2 seconds of power to spin the fan and shuts off. Any ideas on what the problem might be? Thanks alot for your help.