Update for sov05,
AMD DID state from day one that the Duron/T/BIRD would be clock locked. We all thought that when TOM overclocked using the A7V that we had found the magic potion to unlock the chip. I still say that there are too many Durons chips out there that can overclock, that these were all 'pre-production' Maybe the BIOS method of overclocking will work. There are reports of A7V's with bios adjustments working on Durons. A Canandian site has guaranteed overclockable Durons for sale. Maybe AMD fixed the cpu's with a certain stepping. When Anand replaced the jumpers on the AZ11, did he do both FID and BP_FID, I don't know.