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Message: [QUOTE="Danny.hajicek, post: 4936, member: 756"] That's pretty much it: open terminal and copy and paste these commands exactly one line at a time: cd / sudo mkdir kext.backup sudo mv /System/Library/Extensions/ApplePMU.kext /kext.backup/ sudo rm /System/Library/Extensions.kextcache /System/Library/Extensions.mkext ...and reboot. This creates a folder called kext.backup, moves a folder called ApplePMU.kext to this new folder so it will no longer be in the kernel, then removes the kernel extension cache so the operating system will check through extensions again. To put power management back in: cd / sudo mv /kext.backup/ApplePMU.kext /System/Library/Extensions/ sudo rm /System/Library/Extensions.kextcache /System/Library/Extensions.mkext sudo rm -Rf kext.backup ...and reboot Same thing, but in reverse. Be warned, lots of things don't work right without power management. Most notably, you will have to hold the power button after you shutdown to get the computer to actually turn off. Also, I, personally, wouldn't tell apple I did this. It doesn't harm anything, but they don't like people tweaking in the system. [/QUOTE]