Can I add 16GB of RAM in my MacBook Pro (5.1 model, late 2008) running at 1333 DIMMs?

1 Answer 1


The Late 2008 MacBook Pro's can only address:

  • 6.0GB for the 17" model
  • 8.0GB for the 15" model

The information is based on personal experience and backed by MacTracker

  • Thanks Kevin. I was interested in finding out if the person who also answered at the bottom of this message chat actually installed 8GB. I wanted to clarify if it was 16GB total? I have 8GB installed currently. See the link below apple.stackexchange.com/questions/34304/…
    – pDuBB
    Mar 26, 2014 at 2:00
  • You could put 16GB into it, but it will only be able to address/use 8GB. Mar 26, 2014 at 2:01
  • Makes Since! I was hopping for some hacking miracle... Thanks again for the help.
    – pDuBB
    Mar 26, 2014 at 2:05
  • 1
    It's a hardware limitation, so there's really nothing we can do about it. If you want to put some speed in your old MacBook a SSD is probably a smarter choice than RAM anyways. Mar 26, 2014 at 2:10
  • This answer should cite an authoritative source for those specs.
    – Dan J
    Mar 27, 2015 at 18:40

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