Installing Ram in 2008 Mac Pro

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

  1. ggoerl macrumors regular

    Dec 18, 2007
    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.
  2. CaptainChunk macrumors 68020


    Apr 16, 2008
    Phoenix, AZ
    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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