Hidden core in athlon

The extra cores didn't pass QA checks. Instead of throwing away the whole chip they disabled the faulty cores and renamed them.

did you mean that athlon 7750 is a duel core + 2 core disable, i want confimation

are you sure?

everything is likely but there really is nothing more you can do to get it to be a quadcore again as those cores are most likely unstable and unusable.

only with the later x3s and x2s were really able to unlock to a quad core since once amd's production improved they had to lock working cpus and sell them as dual and tri cores.

duno waste ya timo. Old stock =bad

  mine cpu is a b3 stepping which is latest in k10 (unable to find box of cpu) which i bought in 3Q of 2009, so it seems a new one  

  , old stock are bad but not much, i am able to play all games (which i have) at 40fps and thus need only a little performance boost to run them at 60

if i can unlock this chip with a suitable board, and to keep tdp in limit i will downclock the 2 unlocked cores to 200mz (tdp will become 110w) then it will give me a straight benefit of 40% performance increase , and more l2 cache  

Best answer selected by truegenius.