I have a SY-KT333 Dragon Lite motherboard which supports 266MHZ FSB. According to the Soyo web site, it can support XP/Thoroughbred up to 2600+. I am wondering if I put the XP/Barton on this board, what will happen. Is Barton backward compatible with Thoroughbred? Can Barton work with chipset which supports 266MHz FSB only? Thanks for your help.