What happens if you install 4GB on a 3GB machine?

Discussion in 'MacBook Pro' started by noetus, Nov 24, 2007.

  1. noetus macrumors member

    Sep 3, 2007
    New York Cirty
    On my Vista laptop I have installed 4GB even though Vista won't recognize more than around 3GB... to take advantage of the dual channel memory.

    The 2.33 and 2.16GHz MacBook Pro will physically take 2x2GB RAM in the slots. What actually happens if you install this much?

    Will the machine happily address the 3GB (in dual channel mode) and ignore the rest? Or will there be funky stuff?
  2. iMan G5 macrumors member

    Oct 10, 2007
    It should address the ram as 1.5 GB in each slot.
  3. jnc macrumors 68020


    Jan 7, 2007
    Nunya, Business TX

Share This Page