Memory Cards

Discussion in 'PowerPC Macs' started by rom623drh, Jan 30, 2016.

  1. rom623drh macrumors newbie

    rom623drh

    Joined:
    Dec 4, 2015
    #1
    Do all the Memory Cards have to match? I have two 1GB in the center slots; Six 256 in the other slots.
     
  2. Hack5190 macrumors 6502a

    Hack5190

    Joined:
    Oct 21, 2015
    Location:
    Stuck on Earth in the USA
    #2
    Might help if we knew some details on the computer your asking about . . . .
     
  3. bunnspecial macrumors 603

    bunnspecial

    Joined:
    May 3, 2014
    Location:
    Kentucky
    #3
    I'm guessing that you have a G5 since you have 8 slots and are talking about 1gb sticks, although that information is generally useful in answering this question.

    With the G5, the slots are "paired" and correspondingly all the sticks must be also. The two center slots are paired, as are the slots building out from this. If memory is not paired correctly in a G5, the sticks simply won't be recognized. If all are recognized, you don't have anything to worry about.

    There were some nuances in pairing ram in older Macs, but in general the consequences are either that a particular bank won't interleave(reducing performance) or the bank will be recognized at the capacity of the smallest stick. Again, these don't apply to a G5.
     
  4. rom623drh thread starter macrumors newbie

    rom623drh

    Joined:
    Dec 4, 2015
    #4
    G5 PPC 8 slots 2ghz
     

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