Ok, my power supply failed after 2 plus years. Further inspection I found 2 melted wires at the 24 pin connector. So I was right to assume the power supply failed. Now when I looked at the motherboard the you can see burn marks on the m/b connector. I took out the m/b to inspect the backside for burn marks on the board itself but can not visually see any. So the ? is the m/b still good and has anyone else had this problem and did not have to replace the board.