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I have 4GB of 1067MHz DDR3 RAM, upgrading to 8GB, in my late-2008 Apple MacBook Pro.

Crucial’s scanner says my girlfriend’s slightly older MacBook can support 4GB of 500-something-MHz DDR2 RAM (she has 2GB now).

Is it a really, really terrible idea to put my RAM into her computer?

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  • (To be clear, I assume it would run at a slower speed, if at all.)
    – Alan H.
    Commented Jan 11, 2011 at 1:51

1 Answer 1

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Don't do it

DDR3 and DDR2 are not at all compatible. Different number of pins, different technology, completely different. It won't even fit in the slot properly. Bad idea.

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