Got your pm . . . don't know how you found it.
This build had the most unusual problems that anyone has ever heard of. If you want to see them, I'll give you the url to the forum that helped me build it. It had over 500 replies. The problems started immediately. I was to remove the back plate but no matter how hard I pushed on it, it wouldn't budge. Someone put a url in a post where someone had the same problem. He wound up cutting up a 2""x4" board, putting it on the back plate, and gave it some brisk blows with the handle on a screwdriver. Well, I don't have 2"x4" board laying around so I looked around my apartment to see what I could use. I wound up using a rubber door stop. The butt of a screw driver wasn't enough to remove it so I used the side of a hammer. I had to give it 5 pretty hard whacks with it until it finally came out. It bent the frame where the back plate was so I had he hardest time to get the new back plate to stay in place.
All that just to say that I'll check the paperwork for the motherboard to see if it's still under warranty.
Thanks atomic tofu