The Mushkin RAM you used for the review is rated for DDR3-1600 7-7-6-18 at 1.85-1.9v. What voltage did you run it at? You also had it at DDR3-1333 7-7-7-20. Any explanation for the altered parameters?
I was just thinking that maybe the Asus board worked with less voltage so as to draw less power. Then again, they might actually have something good here.