The Barton 2500+ is seen as a 2100+ by my Asus A7M266. I got it to run at a 14x145 by using the wire trick on amdmb forums. and this sim tricks

1GB DDR and 2500+(1.83) on Asus A7M266

Athlon 1.4 and Radeon 64 MB 9000

Barton @ 1.59

Barton @ 1.83

Barton @ 1.95

Barton @ 1.95

Barton @1.95, Radeon 9000

Barton @ 2014 Mhz

Barton 2500+@3000+ on AD-77 stable!

Barton 2500+(1.83)@2411MHz on my soltek 75frn2-l 1.725V