iMac 27" - Memory Config

Discussion in 'iMac' started by sammy2066, Oct 28, 2009.

  1. sammy2066 macrumors 6502a

    Joined:
    Oct 3, 2007
    #1
    Would this memory configuration work?

    1GB - 2GB - 2GB - 1GB

    Total installed memory: 6GB.

    I assume these newer iMacs and Late 2008 MBPs still use the same DDR3-1067 SO-DIMM modules?
     
  2. negatv1 macrumors 6502

    Joined:
    Aug 12, 2005
    Location:
    MI
    #2
    Same memory, and yes that config should work just fine.
     
  3. spsmyk macrumors newbie

    Joined:
    Oct 27, 2009
  4. gjw4u macrumors 6502

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    Dec 2, 2008
    Location:
    Switzerland
    #4
    OP, I would rearrange the modules:
    2GB - 2GB - 1GB - 1GB
     
  5. sammy2066 thread starter macrumors 6502a

    Joined:
    Oct 3, 2007
    #5
    Exellent. I'm upgrading the RAM on my Late 2008 MBP, so I'll have 2x1GB DDR3 stick lying unused.

    The 27" iMac should be here in 2-3 weeks. I'm going to get the base 27" model and put those 2x1GB sticks in for a cool 6GB of RAM. :cool:

    And yeah, I'll put them in as 2GB-2GB-1GB-1GB.

    :apple:
     
  6. mpuck972 macrumors 6502

    mpuck972

    Joined:
    Aug 31, 2007
    #6
    Why? Can you quote some sort of technical paper that explains why this is a must, or is it just another computer myth?
     
  7. negatv1 macrumors 6502

    Joined:
    Aug 12, 2005
    Location:
    MI
    #7
    Depends how the banks are arranged. (haven't looked into) In that case keep your (2) 2GB sticks in one bank, and the (2) 1GB sticks in the other.
     
  8. gjw4u macrumors 6502

    Joined:
    Dec 2, 2008
    Location:
    Switzerland
    #8
    mpuck972, might be that things have changed, but in the past, RAM needed to be paired:
    G5 & matching memory modules
     
  9. mpuck972 macrumors 6502

    mpuck972

    Joined:
    Aug 31, 2007
    #9
    I was referring more to why do the 2gb and 1gb sticks need to be in any particular order if they are the same speed.

    I think thats just one of those old wise tales that has stuck through the years.
     

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