How hot does it run ? If its not a heat problem, return you ECS board and get another one.. and again.. and again until you have one that works. When it does, you'll never want another board again..
Just to say ECS K7S5A boards tend to arive DOA. Just rma it, and get another one. I've been lucky, and I just LOVE this board. But I read so many posts of people being less lucky, and having to swap theirs... It sounds like the DOA rate is >30%
= The views stated herein are my personal views, and not necessarily the views of my wife. =