Replace all RAM modules with lower hz

Discussion in 'iMac' started by tofagerl, Jul 18, 2016.

  1. tofagerl macrumors 6502a

    tofagerl

    Joined:
    May 16, 2006
    #1
    Once and for all, since I googled without finding a straight answer: If I replace the modules that come with the 2015 iMac 5k (1833MHz) with new ones with 1600MHz, will that work?
    What will be the downside of using cheaper and slower ram? Disregard that I'm obviously replacing it with MORE ram, I'm just looking for a quick plus/minus of the MHz. (The minus is the price and availability of the faster ram)
     
  2. maflynn Moderator

    maflynn

    Staff Member

    Joined:
    May 3, 2009
    Location:
    Boston
    #2
    Well it would seem nothing much because Apple states that you should be using 1600MHz ram
    Capto_Capture 2016-07-18_06-16-42_AM.png
     
  3. MH01 macrumors G4

    MH01

    Joined:
    Feb 11, 2008
    #3
    I think you will find the 1833 is running at 1600 anyway.
     
  4. tofagerl thread starter macrumors 6502a

    tofagerl

    Joined:
    May 16, 2006
  5. redheeler macrumors 603

    redheeler

    Joined:
    Oct 17, 2014
    #5
    It doesn't look like the list was updated to reference the iMac (Retina 5K, 27-inch, Late 2015). But I agree that downgrading to 1600 MHz, or upgrading to 2133 MHz, will work fine even if Apple doesn't advertise compatibility.
     
  6. maflynn Moderator

    maflynn

    Staff Member

    Joined:
    May 3, 2009
    Location:
    Boston
    #6
    Good catch - I saw 2015 and I grabbed the screen shot.
     

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