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I have an old 5,2 17” June 8, 2009 MacBook Pro that I want to upgrade the RAM in, can I put some slightly older MacBookPro5,1 RAM in it, or will it not function right? I’m assuming it will mess up the machine if I put older RAM in it but im not sure. It’s crucial ram and there are two 4GB sticks, if that helps at all, thanks again!

Liam

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Both MBPs use the same RAM architecture: 204-pin PC3-8500 (1066MHz) DDR3 SO-DIMM.

Information from macOS app MacTracker.

8GB is the maximum supported RAM for this MBP.

Disclaimer: I'm a satisfied user of MacTracker and have no financial or other connection with the developer Ian Page.

  • So you’re saying that it should work if I take out the older stick and put in two of the other 4GB ones it will work? – Liam Feb 7 at 20:55
  • Yes. Identical RAM. Follow instructions at Apple Support on how to replace. Video from OWC has some rocking' tunes! Be methodical and minimize static. – IconDaemon Feb 7 at 22:27
  • Mactracker so good & useful. – Solar Mike Feb 8 at 5:58

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