One thing that I didn't mention. Socket A is the same size as Socket 370 but particularly for T/Birds you got to make sure that you have a really good HSF/FAN, why? cause the T/BIRD puts out close to twice the heat of a Celery/P3. The Duron puts out about the same as a P3. I guess the warning is, most Socket 370 fans will physically fit but for T/Bird get the best.