Leaving One RAM Slot Empty - OK or not?

Discussion in 'Mac Basics and Help' started by envirocl, Jan 2, 2009.

  1. envirocl macrumors newbie

    Joined:
    Jan 2, 2009
    #1
    Hi,

    I just got a white Macbook 13.3 (2.1 GHz, Penryn) which originally came with just 1 GB of RAM (two sticks of 512 MB).
    Then I got two sticks of 2 GB Kingston RAM for this Macbook.
    I took out both 512 MB RAM and only put one stick of 2 GB RAM in, leaving the other slot empty.
    My Macbook works great.

    My question is, is it OK if I leave the other slot empty like that?
    Or should I put the other 2 GB stick in as well?

    Thanks a lot for your help.
     
  2. BlueRevolution macrumors 603

    BlueRevolution

    Joined:
    Jul 26, 2004
    Location:
    Montreal, QC
    #2
    Absolutely. I believe there is a slight performance hit in running mismatched memory (1 GB in one slot, 2 GB in the other), but running with memory in only one slot is perfectly fine.

    Of course, the more the merrier. ;)
     
  3. eman macrumors 6502a

    Joined:
    Nov 5, 2007
    Location:
    In the great white north
    #3
    Perfectly fine to run with one stick removed.
     
  4. ~Shard~ macrumors P6

    ~Shard~

    Joined:
    Jun 4, 2003
    Location:
    1123.6536.5321
    #4
    Yeah, there is no issue with doing this. For interest's sake, feel free to read up on RAM in our Guides here on MacRumors, lots of useful info there. :cool:
     
  5. jonbravo77 macrumors 6502a

    jonbravo77

    Joined:
    Feb 20, 2008
    Location:
    Phoenix, AZ
    #5
    From what I have read here there doesn't seem to be any harm in doing it but the performance could be a little bad. Depends on what you are doing with your MB.
     
  6. Cheffy Dave macrumors 68030

    Cheffy Dave

    Joined:
    Feb 5, 2007
    Location:
    Sunny Florida, on the Gulf Coast in Homosassa Fl
    #6
  7. envirocl thread starter macrumors newbie

    Joined:
    Jan 2, 2009
    #7
    Thanks a lot for your replies.
    They help a lot.
    I think I'll stick with just one 2 GB memory stick, and I'll give the other stick to a friend whose Macbook is very slow and doesn't realize she needs to upgrade her RAM :)

    Thanks again.
     
  8. envirocl thread starter macrumors newbie

    Joined:
    Jan 2, 2009
    #8
    Updates

    It's been more than a year since I started this thread. The empty slot had given me no problem but recently I added a Corsair 1 GB Value RAM to that slot.
    Increase in performance is worth it (from 2 GB to 3 GB). Value RAM combined with non-Value RAM seems to be perfectly fine.
     
  9. BlueRevolution macrumors 603

    BlueRevolution

    Joined:
    Jul 26, 2004
    Location:
    Montreal, QC
    #9
    That would explain why my memory of this thread is a bit fuzzy. :D
     

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