I have a pretty High dollar computer built for running games on a very high setting, the only problem is that on any games are remotely graphic intensive my computer will shut off after a few minutes to thirty minutes. I then have to hard reset it by holding down the power button. When it does shut off my power light stays on but there is no movement in my computer. Everything is stopped. This did not happen until after I wiped my hard drives. I installed all of my drivers and did all of my updates. I have monitored temperatures and replaced the power supply. I am now at a loss. Any ideas?