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    Windox XP wont regonize 4GB ram?

    Discussion in 'Windows OS and Software' started by notebook777, Nov 26, 2007.

  1. notebook777

    notebook777 Newbie

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    I have this following PC
    MY CPU Is Core 2 DUO QX6600
    MOBO: ASUS P5WDH
    MEMORY: CORSAIR dominator 2GB PC6400
    HARDDRIVE: Western Digital Raptop 75GB
    CPU COOLING: Zalman 9700
    VGA: Gforce 7950

    and i tried to add 4GB (total) ram but it only read 3 some GB

    but it clearly said i can use up to 4GB

    is it because my my memory type or any other hardware that i have is causing this?

    thank you
     
    notebook777, Nov 26, 2007
    #1
  2. John B

    John B Notebook Prophet

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    because you have a 32-bit XP
     
    John B, Nov 26, 2007
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  3. zadillo

    zadillo Notebook Virtuoso

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    You'll need the 64-bit versions of XP or Vista.
     
    zadillo, Nov 26, 2007
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  4. Thibault

    Thibault Banned

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    32bit OS's support 2^32 bytes (or 4GB of memory max). Even if you put 4GB of RAM in, you can't use it all because the system has to use some of that 2^32 bytes of addresses for system hardware. You'll only get about 3.25-3.5GB of RAM available.
     
    Thibault, Nov 26, 2007
    #4