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  1. #1


    Member Since
    May 07, 2007
    Posts
    27
    MacBook Pro 3gb Upgrade??
    Hey folks,

    I'm a new member here, been a mac user all my life.

    I am currently running a 15" MBP Intel Core Duo.
    I am looking to upgrade my memory, and I was hoping to get to 3gb.

    I've done some searching, and I have seen different answers. I know that my MBP has 2 slots, one is filled by a single 1gb chip. So I've heard that the MBP non Core Duo 2's can only will only support 2gb. Some people seem to concur, and some people seem to disagree.

    So my question is, does anyone have more than 2gb in a non core duo MBP?

    I would love to have a 1x2gb chip along side the current 1x1gb chip.

    Any help is appreciated.



    ..pCe..

  2. #2

    dtravis7's Avatar
    Member Since
    Jan 04, 2005
    Location
    Modesto, Ca.
    Posts
    28,760
    Specs:
    iMac 2010 27" QuadI7 OSX10.11, iMac 2008 OSX10.11, MBP Late2011OSX10.11 , iPhone 3GS Note 8!
    According to the specs the older ones take 2GB.

    http://support.apple.com/specs/macbo...cBook_Pro.html

    Here is the specs from Apple on the new one.

    http://support.apple.com/specs/macbo...Late_2006.html

  3. #3

    RONE's Avatar
    Member Since
    Apr 02, 2007
    Location
    Merriam, KS
    Posts
    797
    Specs:
    15" MBP Core Duo 2.0GHz 1.5GB, 20" iMac C2D 2.4GHz 4GB, PowerPC G4 500MHz 512MB
    I'm confused, you have an Intel Core Duo, yet you're asking about a non-Intel Core Duo machine?

  4. #4


    Member Since
    Apr 01, 2007
    Posts
    81
    Quote Originally Posted by RONE View Post
    I'm confused, you have an Intel Core Duo, yet you're asking about a non-Intel Core Duo machine?
    LOL...This must be a rhetorical question.

  5. #5

    dtravis7's Avatar
    Member Since
    Jan 04, 2005
    Location
    Modesto, Ca.
    Posts
    28,760
    Specs:
    iMac 2010 27" QuadI7 OSX10.11, iMac 2008 OSX10.11, MBP Late2011OSX10.11 , iPhone 3GS Note 8!
    What the OP is asking is the CORE DUO 2 MBPs can use 3GB RAM and was wondering if his plain CORE DUO could do the same. The URL's I provided say no. 2GB is plenty anyway.

  6. #6

    flilow06's Avatar
    Member Since
    Feb 20, 2007
    Location
    Miami
    Posts
    255
    Specs:
    15" MBP 2.2ghz SR!
    Quote Originally Posted by dtravis7 View Post
    2GB is plenty anyway.
    I concur...

  7. #7


    Member Since
    May 07, 2007
    Posts
    27
    thanks guys, guess i'll just go for another 1gb.

  8. #8

    Kash's Avatar
    Member Since
    Dec 03, 2006
    Location
    Irvine, CA
    Posts
    9,385
    Specs:
    Black Macbook C2D 2GHz 3GB RAM 250GB HD iPhone 4 iPad 3G
    Quote Originally Posted by Prise View Post
    LOL...This must be a rhetorical question.
    I would hope not, otherwise we're all posting for no reason

    I'm sure you meant hypothetical

    June 2007
    July 2009

  9. #9

    Aaagogo's Avatar
    Member Since
    Apr 23, 2007
    Location
    Daytona Beach, FL
    Posts
    111
    Specs:
    MacBook Pro 15" 2.33Ghz Core2Duo, 2Gb Ram, 120Gb HardDisk, X1600 256Mb & I LOVE Every Inch of her
    anyone know why a 2 slot config only supports up to 3gb and not 4gb?
    No Photographer is as good as the simplest camera.

    Currently Under Intensive Photoshop training... www.lynda.com

  10. #10

    dtravis7's Avatar
    Member Since
    Jan 04, 2005
    Location
    Modesto, Ca.
    Posts
    28,760
    Specs:
    iMac 2010 27" QuadI7 OSX10.11, iMac 2008 OSX10.11, MBP Late2011OSX10.11 , iPhone 3GS Note 8!
    Quote Originally Posted by Aaagogo View Post
    anyone know why a 2 slot config only supports up to 3gb and not 4gb?
    What I heard was a chipset limitation. Don't quote me on it but that is what I have read a few times now.

  11. #11

    Kash's Avatar
    Member Since
    Dec 03, 2006
    Location
    Irvine, CA
    Posts
    9,385
    Specs:
    Black Macbook C2D 2GHz 3GB RAM 250GB HD iPhone 4 iPad 3G
    dtravis is correct, it's basically a limitation in the chipset used in the Macbooks (has to do with a memory overlap). There's no physical limitation to sticking two 2GB sticks in, but you won't be able to access all 4GB if you do (you'll lose somewhere around 700MB, so buying a 2GB chip only to be able to use 1.3GB isn't exactly a smart idea)

    This is actually a good move on Apple's part. Instead of letting its customers install 4GB and have them find that it doesn't recognize all of it, the company tells you from the start that 3GB is the max so you don't waste money buying that extra 1GB. This is unlike other manufacturers who sell their customers 4GB and only state after the sale that you may not be able to access all 4GB.

    June 2007
    July 2009

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