2009 MP non-ecc ram

Discussion in 'Mac Pro' started by s.m.t., Mar 7, 2010.

  1. s.m.t. macrumors regular

    s.m.t.

    Joined:
    Mar 7, 2010
    #1
    Sorry if this has been asked, but I didn't see a response for the 2009's, maybe it is the same answer as the 2008?

    Can I put non-ecc ram in the 2009 MP?

    I just bought a recertified unit from apple, but it only comes with 3GB of ram, I want to get closer to 6GB.

    So I am trying to figure out what is the cheapest route. I am currently looking at a tripple channel kit on new egg by crucial that is non ecc for $165.

    or would it be better to add a single 2GB module which is much less and upgrade to a tripple 6GB ECC kit later?
     
  2. Umbongo macrumors 601

    Umbongo

    Joined:
    Sep 14, 2006
    Location:
    England
    #2
    You can use non-ECC memory if you want to save the $35.
     
  3. s.m.t. thread starter macrumors regular

    s.m.t.

    Joined:
    Mar 7, 2010
    #3
    Ok that is go to know. Actualy if i need to stay in sets of three i would have to spend more, unless i can just add a 2GB stick off ecc ram to the exsisting 3 1s.

    Which leads me to the next question. Do i put in 3x2GB or 4x2GB or 2x4GB?
    do they need to stay in pairs or sets of three?
     
  4. Inconsequential macrumors 68000

    Joined:
    Sep 12, 2007
    #4
    3x2Gb has the fastest memory bandwidth
    4x2Gb may have performance benefits if you fill it all up.

    I went for 3x2Gb.
     
  5. s.m.t. thread starter macrumors regular

    s.m.t.

    Joined:
    Mar 7, 2010
    #5
    Ok thanks!

    I look and see if the cost of the extra 2GB is worth it. Sounds like 3x2 route is the best.
     
  6. Umbongo macrumors 601

    Umbongo

    Joined:
    Sep 14, 2006
    Location:
    England
    #6
    May as well add the single 2GB ECC DIMM and see how you use it under activity monitor, then you can make a decision when to get more memory.
     

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