I have just upgraded my CPU to a Athlon x 2 6000+ GHz, ram from 2 to 4 GB, i have a radeon hd 5670 1 GB ddr5 i am running win 8.1. when i load a game (x flight demo download from Microsoft) i work for a while then the pc powers off immediately shutting down, i have a 500 w psu so don't think the processor is failing due to power. is there any way i can check the sys log to find out what hardware is failing also have a sapphire hd 6570 2GB ddr3 gpu and am wondering if changing them over is worth while as my motherboard only takes 1 gpu.