8 core RAM concerns

Discussion in 'Mac Pro' started by fandus, Aug 6, 2012.

  1. fandus macrumors newbie

    Aug 6, 2012
    Hi guys,

    I'm new here and have one urgent question for you;

    My mac pro 8 core (mid 2010) only has 3 ram slots occupied.

    So of the 8 available slots, only slots 1, 2 and 3 has a stick in it, the rest are empty.

    What is this likely to do? my understanding is the slots must be put in as pairs (slots 1+5, 2+6, 3+7, 4+8).
  2. paulrbeers macrumors 68040

    Dec 17, 2009
    Not true for the 2009+ (2006-2008 needed pairs). They use a tri-channel memory and you can mix and match with any number of RAM sticks, but using triplets is your best bet (if I remember correctly).
  3. derbothaus macrumors 601


    Jul 17, 2010
    Best bet yes but real world difference is not noticeable. Only shows gains in benchmarks and even then 1-5% faster. More memory these days always trumps how you slot them for channel speed. If you think ahead and get high density and optimize channels, even better. But not necessary.

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