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Disclaimer: Flashing your bios can harm your computer, do it at your own risk.

As many Toshiba owners with SandyBridge laptops will know, installing Osx on them have a mayor drawback… native powermanagement can´t be used cause kernel panics.
Appleintelcpupowermanagement.kext has to be patched to be able to boot Snowleopard, Lion or Mountain Lion, and this is very problematic when system updates arrive, leaving the system unbootable till that file is patched again.

Now that has changed thanks to CodeRush on IM.
He has developed a program to patch and unlock Uefi bioses, leaving them ready for native powermanagement use after flashing them back to Laptop bios.

Here is the link to his thread: CodeRush Bios Speedstep unlocker

And here a capture from his program patching Toshiba L750 bios:

Bios Patching

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