Got my RAM today for my Mac Pro!

Discussion in 'Mac Pro' started by albeik, May 6, 2008.

  1. albeik macrumors regular

    albeik

    Joined:
    Jul 1, 2003
    #1
  2. Cindori macrumors 68040

    Cindori

    Joined:
    Jan 17, 2008
    Location:
    Sweden
    #2


    ;)
     
  3. yoak macrumors 65816

    yoak

    Joined:
    Oct 4, 2004
    Location:
    Oslo, Norway
    #3
    I just installed 2 *4GB of RAM from transintel, but the original Aplle RAM is not recognized (I moved them to the second slot)
    Any ideas?
     
  4. JonR356 macrumors member

    Joined:
    Jun 8, 2007
    #4
    Are you sure the Apple RAM is fully seated?
     
  5. CanadaRAM macrumors G5

    CanadaRAM

    Joined:
    Oct 11, 2004
    Location:
    On the Left Coast - Victoria BC Canada
    #5
    If you purchased 2 new modules,

    Put the 2 x 4 GB into Riser A, slot 1 and slot 2

    Put the 2 x Apple RAM into Riser B, slot 1 and slot 2
     
  6. yoak macrumors 65816

    yoak

    Joined:
    Oct 4, 2004
    Location:
    Oslo, Norway
    #6
    They are in the right slots, so probably not properly seated. I´m away from my MP for 10 days so I can´t check
     
  7. kittiyut macrumors regular

    kittiyut

    Joined:
    Oct 28, 2007
    #7
    I think it would probably be better if you swap the DIMM 1&2 with 3&4
    (Put the 2x2GB on top, 2x1GB on the bottom - of Riser A)

    Ken
     

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  8. albeik thread starter macrumors regular

    albeik

    Joined:
    Jul 1, 2003
    #8
    Thanks Ken. What is the reasoning behind that? I am curious.

    Having DIMM1/2 on both risers with the same memory would allow simpler/better memory allocation and increase speed (albeit a little)?
     
  9. CanadaRAM macrumors G5

    CanadaRAM

    Joined:
    Oct 11, 2004
    Location:
    On the Left Coast - Victoria BC Canada
    #9
    It allows 256-bit access across the 4 x 2 GB modules if you put them in A1 A2 B1 B2 for a small speed boost.
     
  10. albeik thread starter macrumors regular

    albeik

    Joined:
    Jul 1, 2003
    #10
    Thanks! Moved them based on your recommendation. :D
     

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