Since you are running the BUS at 200, why don't you just leave HT at 2000 MHz? HT in all honesty doesn't do much and the lower HT will help stabilize the overclock. I don't have any experience with this platform so if I'm wrong please excuse me, but at least older platforms behaved the same.
Also, use the "edit" button to merge your posts and avoid double posting, please. Thanks.