happy to be able to reach 540 fsb with that mobo on air
4.6 ghz ( 8.5 x 540 / PC 6400@1080 4-4-4-4) 1.56v real bios ( set at 1.68v )
http://valid.x86-secret.com/cache/banner/331019.png
http://images3.hiboox.com/vignettes/1208/ajvvi46k.jpg
something strange I couldn't raise VMCH more than 1.4v ( 1.5 and 1.7 available bios 903 asus P5K-C )
Regards