"What makes this even more exciting, is that the KT266A chipset is a drop in replacement for the KT266 north bridge. This translates into an easy and quick turn around time between when the chipset hits the manufacturers doorstep to when its yours. Manufacturers do not have to redesign boards for this revision: simply replace the production KT266 with KT266A, update the bios, and *voila!* instant performance boost! "
FULL STORY @ AMDMB (http://www.amdmb.com/article-display.php?ArticleID=116)