Well, if it is like the AM2/AM2+ transition, a few of the AM2 boards could be flashed to accept AM3 CPUs, but all the AM2+ boards were validated for both AM2 and AM3 CPUs. Could just be firmware, but ...

I've got the urge to upgrade my motherboard+CPU from an x2 Toledo 3800+ and a S939 board to something a little more modern. Mainly on stability issues rather than brute speed, although more speed is ...