MBP on one stick of RAM?

Discussion in 'MacBook Pro' started by neilq101, Jul 25, 2011.

  1. neilq101 macrumors newbie

    Feb 26, 2011
    Hi, I bought a 4gb RAM upgrade on Amazon for my mid-2009 MBP for the upgrade to Lion, but when I opened it I realised it was one 4gb stick, not 2x2gb like I thought I had bought. I can't return it now, so I'm not sure what to do.

    I know it's considered bad to have asymmetrical RAM, but is installing it next to one of my existing 1gb sticks better than just running on the one stick? Or am i best off just buying another one of these sticks to have 8gb in parallel?
  2. Intell macrumors P6


    Jan 24, 2010
    It isn't too bad to have mismatched ram sizes. You'll still see a speed boost, but it won't be as big of a boost as 2x2Gb would be.
  3. -tWv- macrumors 68000


    May 11, 2009
    Itll be fine, just put both in, any RAM will help but not as much as a matching set would
  4. Smork macrumors member

    Jul 14, 2011
    The fastest RAM will auto-match speeds with the slowest and match the slowest stick's speed. There should be no issues with this.
  5. alust2013 macrumors 601


    Feb 6, 2010
    On the fence
    4+1 will be better than just the 4, so do that. It certainly won't slow your computer down any.

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