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  1. #1

    oilyhuman's Avatar
    Member Since
    Aug 27, 2009
    Posts
    10
    Upgrading memory on a PPC G5 DP 1.8
    I currently have 4x256 DDR SDRAM. I am wanting to add 4x1GB DDR SDRAM

    I have 8 slots, I would like to know if the different sizes will be okay together. Or should I just remove the 256 sticks?

    Thanks for any advice.

    Oily

  2. #2

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    48,224
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, El Capitan
    I would need to know the exact model Power Mac G5 that you own. There is a difference in the way modules can be inserted in the early 2005 model and the late 2005 model. Also, earlier than 2005 Power Mac G5 machines have less capacity for memory. Perhaps this site can help you decide.

    Regards.

  3. #3

    oilyhuman's Avatar
    Member Since
    Aug 27, 2009
    Posts
    10
    Thanks so much! Great site. Looks like I'll be okay as long as I install in pairs, up to 8GB

  4. #4


    Member Since
    Aug 28, 2009
    Posts
    11
    Specs:
    MacBook 2.0ghz
    Quote Originally Posted by oilyhuman View Post
    I currently have 4x256 DDR SDRAM. I am wanting to add 4x1GB DDR SDRAM

    I have 8 slots, I would like to know if the different sizes will be okay together. Or should I just remove the 256 sticks?

    Thanks for any advice.

    Oily
    If you have a G5 1.8 dual processor with 8 ram slots...this is your computer:

    Apple Power Macintosh G5 1.8 DP (PCI-X) Specs (Original/Late 2003 - M9393LL/A) @ EveryMac.com

    The only instruction seems to be that you need to install ram in pairs. So it would seem that 4 x 256meg and 4 x 1gig for a total of 5 gig would be ok.

  5. #5

    oilyhuman's Avatar
    Member Since
    Aug 27, 2009
    Posts
    10
    Thanks for the confirmation.

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