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Discuss Macbook Ram question at the Genuine Mac Support - Hackint0sh.org; I have a black macbook. currently I have 4GB of ram installed and of course ...
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    Rookie Array Bargsbeer's Avatar

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    Default Macbook Ram question

    I have a black macbook. currently I have 4GB of ram installed and of course it only uses 3GB of ram. is there a way to change or modify the computer to use all 4Gb of ram?

    Thanks



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    nope, you have a 32 bit os. It will only use 3 gb. If you are running leopard then it should be using all 4 gb

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    So the only restriction on the MacBook as to the amount of RAM is the OS? So now I've upgraded my MacBook to 10.5 I can use 4GB?

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    That is not entirely true... the initial Core2Duo Macbooks + Macbook Pros are limited to 3.25GB of memory due to a design flaw in the memory controller on the Intel Chipset.

    A 32-bit OS can utilize up to 4GB of memory, so odds are that you are in the boat of design flaw rather than architectural limitation.

    ~Adrian

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    If you have the last version of MacBook or the new MacBook, and you installed 4G ram, you can get all the 4G ram.

    If you have the old version of MacBook (I can't remember may be the one that followed the iPhone 2G rollout) and you installed 4G ram in it, you can use 3G only even you use 10.5.4.

    This requires the hardware support.
    Touch Dial is an easy-to-use application for one touch dial / sms icon on the home screen for iPhone.

    This app can read the accelerometer and do phone dial or SMS dial for the same number based on the your setting for Portrait or Landscape Mode of iPhone.



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    The issue is the memory controller in your chipset.

    The earlier Core2Duo chips had a design flaw that caused the memory controller to overlap blocks of memory after you had 3.25 GB installed, and thereby disabled the additional memory to prevent running into issues.

    Unfortunately, this is a physical limitation of the memory controller, thereby preventing you from addressing the additional memory so no matter what you do, it will not be accessible.

    It is unfortunate, but it is the truth. I am in the same boat as you are by the way.
    This also means that as much as I would really like to upgrade to additional memory, I will need to wait until the new 17" MBPs come out to make use of it, as I am not about to buy one revision higher than my current computer.

    Yes, I know that Apple is calling it a *new* MBP, however when it has the same case, same screen, same processor... only bumped up memory to be comparable to the rest of the line and a bumped up hard drive, again to be comparable with the rest of the line, it is not a *new* MBP.

    ~Adrian

 

 

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