Is it fine to use a 2gb stick in one slot and 1gb in the other?

Discussion in 'Buying Tips and Advice' started by c0bracommander, Feb 28, 2010.

  1. c0bracommander macrumors member

    Joined:
    Nov 5, 2008
    #1
    Wanting to max out the ram on my sister's MBP, but she has the model that only supports RAM up to ~ 3.2gb or so.

    Is it OK to have one slot with a 1gb stick and put a newer 2gb stick in the other, or would I need to upgrade with matching 2gb sticks?
     
  2. c0bracommander thread starter macrumors member

    Joined:
    Nov 5, 2008
  3. DMC-12 macrumors 6502

    DMC-12

    Joined:
    May 16, 2007
    Location:
    Nashville, TN
    #4
    Yes. Adding as much RAM as the machine will accept will give much better performance and is worth the minor performance hit that mismatched memory can cause in some machines.
     
  4. 92jlee macrumors 6502

    Joined:
    Sep 11, 2009
    Location:
    Cardiff, Wales, UK
    #5
    Just get two 2gb sticks.. only 3.2 will be readable but you will get the added benefits of dual channel.
     
  5. admwright macrumors regular

    Joined:
    Sep 11, 2008
    Location:
    Scotland
    #6
    This is the path I took for our iMac, works great.

    All the best
    Andrew W.
     

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