I was able to push my GF2 MX 400 from its default 200/286 to 220/356, with pretty much rock stable results. I did experience some "snow" althought it was very little and only popped up 2x the entire night. (I had been playing Medal of Honor: Allied Assualt for like 6 straight hours) Scored a 2668 on 3dmark2001 with my OC'ed settings, post what you get. (I had a 2177 before OC'ing)
D