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原帖由: Ben Eisenman ,

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Apple went back and forth between an integrated CPU and a removable CPU. Unfortunately, I believe this model features the CPU integrated onto the logic board.
 You can, however replace the logic board with a 2.4 GHz board from a Mid 2007 machine (do a Google search for part number 661-4439). But that won't be cheap. Your call!
Good luck!

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