Stock RAM voltage in new 27" iMac

Discussion in 'iMac' started by Phazer, Mar 3, 2013.

  1. Phazer macrumors member

    Joined:
    May 19, 2010
    Location:
    London, UK
    #1
    Is the stock ram in the 27" iMac 1.35V or 1.5V?
     
  2. mushroomtip macrumors 6502

    Joined:
    Oct 27, 2012
  3. drambuie macrumors 6502a

    Joined:
    Feb 16, 2010
    #3
    The OEM Apple RAM is 1.5V. The Intel Ivy Bridge i5/i7 CPU memory controllers are designed for 1.5V RAM, but will run stable with 1.35V. If you mix 1.35V and 1.5V RAM, it will run at 1.5V, which will not harm the 1.35V RAM, although it's best not to mix voltages.
     
  4. WilliamG macrumors 604

    Joined:
    Mar 29, 2008
    Location:
    Seattle
    #4
    It's 1.5V.
     
  5. mushroomtip macrumors 6502

    Joined:
    Oct 27, 2012
    #5
    I stand corrected ! is there any noticeable difference in performance between the 2 ? the crucial replacement is 1.35
     
  6. Phazer thread starter macrumors member

    Joined:
    May 19, 2010
    Location:
    London, UK
    #6
    Thanks for the replies!
    So indeed the correct replacement ram to buy would be the corsair vengeance which is 1.5v?
     

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