MBP 2.33Ghz - 4GB RAM possible in Leopard?

Discussion in 'MacBook Pro' started by EmptyG, Jul 1, 2007.

  1. EmptyG macrumors regular

    Feb 16, 2007
    Hello everyone :)

    So I have the last version of the MBP (before the SR updates). It's a 2.33Ghz, 2GB of RAM.

    My question is this: I have been reading about the 3GB RAM limitation and had seen people mention that OS X currently won't recognize above 3GB total on my specific system, and that may be due in part to OS X being 32 bit right now.

    Leopard will be 64 bit out of the box. Will my version of the MBP recognize 4 GB of RAM then, or is this system always going to be limited to 3GB?

    And is it worth going to 4GB anyways, even if my system will always only recognize 3GB max?

    Thanks! :)
  2. Eraserhead macrumors G4


    Nov 3, 2005
    the 3GB limit is a motherboard design limit, Leopard won't help.
  3. aliquis- macrumors 6502a

    May 20, 2007
    And the reason to still put 2*2GB in there instead of 1*2GB + 1*1GB is that they will still run in dual channel mode and therefor give you twice the memory bandwidth. If you only put in 1+2 you will only get half the memory bandwidth.

    Thought it sucks to know that you have ram you can't use =P

    Just live with 2GB as long as you can, it should work for quite some time shouldn't it?
  4. CanadaRAM macrumors G5


    Oct 11, 2004
    On the Left Coast - Victoria BC Canada
    For the extra money of 2 + 2 you get a small additional performance gain in real world terms over the 2 + 1 configuration. Double bandwidth means only 6 - 8 % in overall performance.
  5. EmptyG thread starter macrumors regular

    Feb 16, 2007
    Excellent responses all :) Yeah I will just work with the 2GB for now. It's fine right now and should be enough for the foreseeable future, just wanted to know my options down the road.


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