SMP lock easy to crack?
If the SMP lock should be implemented in the same way, one could easily crack it just like the multiplier. How-Tos for the latter procedure have been out on the web for months.
The Athlon XP is based on the same core as the Athlon MP which has AMDs official support for being used in SMP configurations. However, AMD only tests and guarantees SMP with the more expensive Athlon MP. As a consequence, experienced users prefer the less costly Athlon MP for dual processing.