all tbird 1.2s are not unlocked. i received a "locked" cpu. i think misinformation is mingling with misundertsanding for some people ... changing the fsb to 133 does not mean the cpu was unlocked. in my opinion, the majority of tbirds (including mine) have no problem at 133 because the core of the 200 and 266 are essentially the same. again, this does not mean it came unlocked ... although some people did receive unlocked cpus. kudos to them!