Yeah I believe i figured out the problem. One of my video cards which ran very hot was right below a heatsink on the motherboard making it VERY VERY HOT! I took out the video card and the motherboard temp went down drastically. Idle runs around 34C and full load on 46C. Think I better install a side fan on the case pointing at that heatsink because it was also out of reach of the airflow. Thx for your help!