Powermac G5 Ram Query

Discussion in 'Macintosh Computers' started by nickgoldman, Dec 5, 2004.

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  1. nickgoldman, Dec 5, 2004

    nickgoldman macrumors member

    Joined:
    Dec 2, 2004
    #1
    A friend has a 512mb ram module that he has taken out his powermac g5 and replaced with something higher I'm confused about this pairs thing
    Can I put only 1 module in or would I be better off getting 2 256mb modules elsewhere.
    Will it make a huge impact on the speed

    Thanks Nick
     
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  2. Blue Velvet, Dec 5, 2004

    Blue Velvet Moderator emeritus

    Joined:
    Jul 4, 2004
    #2
    Inside the G5 powermac are 2 banks of slots for RAM.

    Install matched pairs of RAM going outwards from the centre, 1 of the same kind in each slot.

    So in our work machines we have in each bank going outwards from the centre.

    Slot 1: 256
    Slot 2: 512
    Slot 3: 512
    Slot 4: ---

    (2 x banks = 2.5gb)
     
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  3. cmvsm, Dec 5, 2004

    cmvsm macrumors 6502a

    cmvsm

    Joined:
    Nov 12, 2004
    #3
    You'd be better off installing two 256MB sticks than one 512MB stick. One will work but not as well as two. Barefeats did a comparison and it was clear that two sticks of memory are utilized much more efficiently than one stick of the same memory.
     
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  4. Scottyk9, Dec 5, 2004

    Scottyk9 macrumors 6502a

    Joined:
    Jun 18, 2004
    Location:
    Canada
    #4
    Powermac G5 require pairs - you can't put in one single stick.
    Or are you referring to the G5 iMac?
     
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