I built a computer for my daughter using this motherboard in April - I put an XP1800+ in it. Then I built my son a computer using the same KR7 series board in August, and put an XP2000+ in that system.
ABIT shows that they have rolled up the BIOS on this motherboard, and it will accomodate any XP series CPU up to, and including the XP2100+.