4 Replies Latest reply: Jun 15, 2013 2:56 PM by Kappy
ltoussaint Level 1 Level 1 (0 points)


I am looking to upgrade the memory on my macbook 6.1 and I was wandering if it is possible to upgrade for example only one of the slots: 1GB and 4GB or does it have to be 2 2 or 4 4?

MacBook, Mac OS X (10.6.8)
  • 1. Re: Macbook Ram Memory?
    Niel Level 10 Level 10 (241,965 points)

    It's possible to upgrade only one, but the system's performance will be better if both are upgraded.



  • 2. Re: Macbook Ram Memory?
    Kappy Level 10 Level 10 (226,765 points)

    Your supported memory is:


    Maximum Memory8.0 GB (Actual) 4.0 GB (Apple)
    Memory Slots2 - 204-pin PC3-8500 (1066MHz) DDR3 SO-DIMM


    The computer is designed to provide best performance with two memory modules installed in matched pairs. But modules that are not pairs may be used with a reduction in memory performance.

  • 3. Re: Macbook Ram Memory?
    ltoussaint Level 1 Level 1 (0 points)

    So I should consider upgrading both slots to 2GB instead of upgrading only one to 4GB? To be honest the 2GB memory card is 45 euros and the 4GB is 60, so i was confused whether to go for a 3GB memory for 40 euros or 5GB for 60 euros. But then again if the system performance might be impaired perhaps I should stick to upgrading both 2GB for a total of 80 euros? Which would leave me with a a 4GB memory...

  • 4. Re: Macbook Ram Memory?
    Kappy Level 10 Level 10 (226,765 points)

    It would be my recommendation for best performance that you install matched pairs - 2+2 or 4+4.