Yes, some 2008 MacBooks and MBPs can address 8GB of memory

Yes, some 2008 MacBooks and MBPs can address 8GB of memory

Summary: Storage and upgrade vendor Other World Computing took another look at the memory limits in some late 2008 Core 2 Duo MacBook and MacBook Pros and found that a specific blend of updated firmware, Boot ROM and OS versions will let the notebooks handle a 8GB RAM upgrade.

SHARE:

Storage and upgrade vendor Other World Computing took another look at the memory limits in some of Apple's late 2008 Core 2 Duo MacBook and MacBook Pros. Its testing found that a specific blend of updated firmware, Boot ROM and OS versions will let the notebooks handle a 8GB RAM upgrade.

Posted recently in the company blog, the tip says that machines running the latest update to Snow Leopard can address 8GB rather than the previous 6GB limit. It all depends on which version of the EFI Firmware Update and Boot ROM is installed.

The practical upshot of all this is that if you installed the EFI Update when it first came out, like we did, you would have gotten the old code, which meant your computer would only address 6GB properly. Those who didn’t upgrade until after Apple changed the updater got the newer firmware, which allowed proper addressing of 8GB.

Once we manually installed the “updated” version of the EFI Firmware in our test machines, they were able to address 8GB normally, without any crashing or slowdowns.

Users may have to download updated Boot ROMs, make sure they are running OS X Snow Leopard v10.6.6. According to the blog post, the machine must run the 10.6.6 software.

Topics: Operating Systems, Apple, Browser, Hardware, Laptops, Mobility, Software

Kick off your day with ZDNet's daily email newsletter. It's the freshest tech news and opinion, served hot. Get it.

Talkback

8 comments
Log in or register to join the discussion
  • RE: Yes, some 2008 MacBooks and MBPs can address 8GB of memory

    And this is news? Having updated firmware, allows advancements beyond the original limits?
    Rick_K
    • Apparently, this fact was just discovered.

      @Rick_K

      The firmware update never mentioned this ability to utilize 8 GB of RAM on these systems. (Sort of a hidden Apple "Easter Egg")

      I actually have a MacBook that qualifies for this memory upgrade potential. I don't know .. this laptop does everything I need it to do with 4 GB. I suspect that unless OWC is giving away these 4GB memory modules, I will pass on increasing my MacBook system memory. (I'll save $190.00)
      kenosha77a
      • RE: Yes, some 2008 MacBooks and MBPs can address 8GB of memory

        @kenosha7777
        Mine came from the factory with 8 GB support, now if it could be bumped up to 16, that would be news. There have been reports, that this was possible last year. So having it on here almost a year later is not news. Everymac.com listed this last summer.
        Rick_K
      • RE: Yes, some 2008 MacBooks and MBPs can address 8GB of memory

        @kenosha7777

        I doubt it would cost you $190.00. An 8 GB kit of DDR3 for recent Macbook Pros can be bought for less than $100.00.
        Goldie07
  • RE: Yes, some 2008 MacBooks and MBPs can address 8GB of memory

    Wow, this old unibody aluminum Macbook continues to be one of the best Apple bargains (for an Apple product) that I ever bought. Ordered it with a broken front glass about a year ago for something like 300 bucks, then rather than cut myself 8000 times picking out chards of glass on the original lid, I just happened to come across another Ebay auction for a complete lid with LCD/new Glass etc for around 100 bucks.

    Threw 4, then 6GB of RAM in the thing, then a 500GB 7200RPM disk drive and it continues to function flawlessly. Nice to know I can knock it up YET AGAIN to 8GB and still throw in an SSD if I want to totally max it out. Guess it'll hang around as a toss around machine once I move on.
    Playdrv4me
  • OWC is great

    American Apple users are so lucky to have a vendor like this. I have OWC RAM in my G51.8 but the cost of today's postage makes more purchases from OWC out of the question.
    Laraine Anne Barker
    • RE: Yes, some 2008 MacBooks and MBPs can address 8GB of memory

      @Laraine Anne Barker

      You can always order at crucial.com/eu
      ∞Dilemma
  • RE: Yes, some 2008 MacBooks and MBPs can address 8GB of memory

    Well done! Thank you very much for professional templates and community edition
    <a href="http://www.yuregininsesi.com" title="seslichat">sesli chat</a> <a href="http://www.yuregininsesi.com" title="seslisohbet">sesli sohbet</a>
    birumut