of the 5 I have, one of them is an AXDC2400DKV3C which is an Athlon 2400 with a 266 FSB, if you need just let me know.
You could always downclock one of the 2500's to a lower FSB, right? I haven't worked with socket A (462) in a while but I'd assume you could (not a 100% sure
) anyways I hope this helps.