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Is early 2011 macbook pro ram ok for mid 2009 MBP

I

irobbiemcc

macrumors newbie
Original poster
Oct 19, 2011
5
0
Byron Bay
Hey All,

I have recently upgraded my early 2011 MBP and was wondering if the old RAM can go in my girlfriends mid 2009 MBP. Is it possible and is it worth it. From what i can find the 2009 supports 1033mhz and the 2011 is 1333mhz. I know my way around a mac, but RAM isn't really my game. Any help would be great
 
The newer RAM should work in the 2009 MBP. It's physically compatible (204-pin SO-DIMM) and should usually down-clock to 1033MHz automatically (or rather: work at that lower frequency).
 
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