This was my first build and it was working fine for 3 days. One day, it just shut off. When I tried turning it back on it would power on but no POST beeps. I know that it can not be the mobo because when I removed the RAM, it would turn on and I would get 3 long beeps. I am not sure what they mean but I think it is related to the RAM. I just wanted your guys' opinion on this and any advice.