steno

No, i don't know so much and i can't solve so many problems unfortunately … there are much more experts than me here, for sure!! Thanks for checking, and thanks for admins or technicians to contribute with their experience to help us solving this problem(or just for letting us to understand more about this machine).

yes, Thanks! I just checked it, and if you look inside the Extra/Extensions folder of such package, there is NullCPUPowerManagement.kext … in this way it works, as i said. My concern is using Native Powermanagement, not disabling it (with Null…) Jake(or any other expert/admin)? Do you know anything more about it? Thanks! 

which boot pack are you using ? Did you update to 10.8.5SupplementalUpdate?

Jake Lo : you mean that you did a new installation with the same boot pack you posted some pages before here in this thread ? Or did you do another "build" of boot pack?

trafsta : i have AICPM kernel panic with 10.8.5 too , after upgraded from 10.8.2 with combo update. 

Oh perhaps changing the smbios? The same cpu is from a macbook pro with i7 processor (dual core)...

EDIT : I noticed that sleep works anyway…  without SleepEnabler kext. Very strange... 

I think it's due to our processor or RAM perhaps? how  much ram have you got? Perhaps we need some modifications of our dsdt to support more ram...

yes, i have i7 2620m (dual core) . With null… everything works well but i am not using native power management.

EDIT : upgrading the bios is still the same: kernel panic on AICPM at startup, unless starting with -x or adding null… any suggestion?

Same problem here… kernel panic on AppleIntelCPUPowermanagement on 10.8.5 without using NULL with E6220. No problem in 10.8.2 . I tried all packs you provided. I would like to use Native PowerManagement and not Null… any solution ? I updated to latest chameleon and it is still the same. Thanks!