Speedstep in 10.7.4

Enabling intel SpeedStep on OSX 10.7.4 with Core i3-2330M Processor

Proof

Imgur

Howto

first, the requirements:

Action !

  1. patch the AppleIntelCPUPowerManagement.kext :

     perl AICPMPatch.pl AppleIntelCPUPowerManagement.kext/Contents/MacOS/AppleIntelCPUPowerManagement --patch
    
  2. next, place the SSDT to /Extra/

  3. add the following options to Chameleon Wizard’s boot.plist section : Imgur
  4. Install the patched AppleIntelCPUPowerManagement.kext with Kext Utility - be sure to remove NullCPUPowerManagement.kext from /System/Library/Extensions first !
  5. Cross your Fingers and Reboot.
  6. to check if Speedstep enabled or not, use MSRDumper :

     sudo kextload MSRDumper.kext
    

    open Console.app in /Applications/Utilities/, and select kernel.log on the sidebar. you’ll see the current speed on the screen.