Fixed ..... I guess.
So sent the PC back to manufacturer AGAIN. Got it back and has been working great for a month. They said Power Supply was replaced and apparently that as the problem. This means I was lied to by the PC repair guy.
For anyone out there that experiences these issue I hope this helps.
The kind of problems mentioned above were due to a faulty power supply. Maybe the MOBO was bad to, dont think so, but the Power Supply was the answer.
Thank You to all the people who have sent suggestions!