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iCook is a small OS X kernel extension that allows simple overclocking of the IBM 750FX processor found in some Apple iBooks. It should be compatible with all iBooks that have more than 16 megabytes of video RAM, but not the new iBook G4s. At this time iCook requires OS X 10.3 or higher, however this will change in a future version.

I first read about this feature of the 750FX in this article at Since then Apple has made it more difficult to change the iBook's speed. It seems that current versions of OS X continually monitor the CPU speed and

Requirements for iCook

iBook with 750FX G3 CPU, Mac OS X 10.3 or later
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iCook User Discussion

Current Version (1.x)
Downloads 6,301
Version Downloads 4,436
License Free
Date 29 Jun 2004
Platform OS X / PPC 32
Price Free
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