When i first got my computer it worked fine with the games I played like Sims 3 and Aion online but for some reason it keeps shutting down all of a sudden. I dont think heating is the problem because the computer dosent get hot because i use like 3 fans to prevent overheating and I bought a new graphic card so i dont think thats a problem either. Please help :[[[[[[[[[[[[[[[[[[

My computer information:

Processor : Intel(R( Core(TM) i7-3770 CPU @ 3.40GHz 3.40 GHz

Ram : 8.00GB

System : 64bite

Graphics : NVIDIA GeForce GTX 650