2015 27" i,7 5K Memory Upgrade

Discussion in 'iMac' started by YatBob, Jul 3, 2017.

  1. YatBob macrumors member

    YatBob

    Joined:
    Apr 23, 2014
    Location:
    Louisiana
    #1
    I just became the owner of the above mentioned iMac which has 8 gb memory installed, I would like to upgrade memory to 16GB, when I look at Apple specs it says to use 1867MHZ DDR3, when I view the Crucial website it recommends 1867DDR3L, which is low voltage, doing some web research I found one site that said not to use the L version, other sites just offer a explanation of what L is but offers no opinion on mixing DDR3 and DDR3L
    Question is can I use the DDR3L ?
     
  2. curmudgeonette macrumors 6502

    Joined:
    Jan 28, 2016
    Location:
    California
    #2
    The industry standard spec for DDR3L says that it must also operate at DDR3 voltages. So, even if your Mac needs DDR3-noL, you can use DDR3L.

    (I suspect that nearly all DDR3 memory produced today is actually DDR3L. By being backwards compatible, there's no reason to produce a version with fewer uses.)
     

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