bunkachunk :
I was looking in my bios last night, and found that I can change the cpu ratio from 4x to 14.5. 14.5 being the auto setting. I also found that I can turn off the cores that I do not want on, this is where I found that there is six cores listed. The cpu is the athlon ll x4 635 propus 2.9 stepping 3. I thought that this was suppose to be 4 cores only and the multiplier locked! I read where some were unlocking the l 3 cache, but I can not. my mobo is the asus m4a79xtd evo w/ newest bios. Are they all "635 cpu's" like this? and if I were to get a mobo that will unlock cores for the black edition cpu's, will I be able to use the two extra cores?
The 6 cores possible to enable are likely a flaw in the bios. Enabling the two extra cores will have no effect, or could cause it to crash and you could have to reset it. There are no Athlon IIs derived from thuban.
As for being unlocked, all AMD CPUs are unlocked in the downward direction. Note that you cannot go higher than the stock 14.5x. Which is still kinda nice for flexibility.
And for L3 cache unlocking, this was able to be done with the first Athlon IIx4s that came out because they were Phenom IIx4s with disabled L3 cache. This was only for the very early 620 models. I got mine several months later, when they were all made without L3 and were no longer disabled denubes.
Everyone asking for proof is being foolish because they read a thread a few months back where a troll tried to convince people that he had a working Athlon IIx6. This is not related to you and people should not be being rude to you because of it. I apologize for dipankar's rudeness.
dipankar, this user made no claims that he had a working athlon Iix6, he is only curious as to why his bios shows a possible 6 cores to disable or enable.