Installing Ram in 2008 Mac Pro

Discussion in 'Mac Pro' started by ggoerl, Oct 7, 2010.

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  1. ggoerl, Oct 7, 2010

    ggoerl macrumors regular

    Joined:
    Dec 18, 2007
    #1
    My Mac Pro currently still has the stock amount of 2gb's (1x1) and I had just recently purchased 8gb's (4x4) The guide here on the site said to put the largest amount in A1 and A2 now where am I to move the stock amount to B1 and B2 or A3 and A4? I was thinking B1 and B2 but I am just trying to make sure.
     
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  2. CaptainChunk, Oct 7, 2010

    CaptainChunk macrumors 68020

    CaptainChunk

    Joined:
    Apr 16, 2008
    Location:
    Phoenix, AZ
    #2
    For 4 DIMMs, you want two modules on each riser card. In all configurations, you never want an unpopulated riser.

    Put the larger (4GB) DIMMs in A1/A2 (top riser) and the smaller (1GB) DIMMs in B1/B2 (bottom riser).
     
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