For all its positive attributes, Sandra is not the end-all Mainboard information authority. It does not always get things right. If you can run at some reduced multiplier and 166FSB, chances are your 1/5 divisor is working, regardless of what Sandra says. I just built a rig up for my Niece and am using an A7V333 Rev 1.02 board. I am running an XP1600 at 10x166. Under the latest revision of Sandra, it claims my PCI and AGP buses are way above what I know they are not capable of running at.