Not sure about the K7D Master, but I own a K7 Master. You have to know that there IS a major quality issue with these boards and that after some times, many many people got troubles with the AGP port. In fact, the board does not support Fastwrites on any GeForce card (don't know about the Radeons). I own to of these boards, and both had the same problem at the same time (about 4 months after I purchased them). The funny thing is, disable Fastwrites, and everything works fine.
Also, I have some minor stability issues with both boards (ramdom lockups, about once every 2 weeks. It usually locks up when doing nothing particularly stressful...)
Anyway, that's what I had to say... And I don't know if those problems are ironed out in the K7D