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OS and Memory

Discussion in 'Windows XP' started by sree2403, 2009/09/13.

  1. 2009/09/13
    sree2403

    sree2403 Inactive Thread Starter

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    Hello,
    How much memory a 32 bit OS can use?During the upgradation of memory in my Laptop company recomends 3 GB but it can accomadate 4 GB.Now I am planning to purchase one Desktop and now a days Desktops are coming with even 8 GB memory slots and if it loads with 32 bit OS then how much memory it can utilise. Seeks the help of yours
     
    sree2403,
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  2. 2009/09/14
    PeteC

    PeteC SuperGeek Staff

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    A 32 bit OS can use ~ 3.3 - 3.5 Gb of RAM - this applies to all 32 bit OS's - XP, Vista & Win 7 regardless of how much memory is installed.

    I run Windows 7 Pro x64 with 6 Gb RAM dual booted with XP Pro SP3 x86. Win 7 sees all 6 GB, XP only 3.5 GB. It is a limitation of 32 bit.

    If you want to install more memory you need to run a 64 bit OS - Vista x64, Win 7 x64 - don't even consider XP x64 :)
     
    PeteC,
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  4. 2009/09/14
    sree2403

    sree2403 Inactive Thread Starter

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    Pete Thank you for your replay. Can you plse write the logic/mathematics that an Operating system with Memory.

    Regards
    Sree
     
    sree2403,
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  5. 2009/09/15
    PeteC

    PeteC SuperGeek Staff

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    PeteC,
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  6. 2009/09/16
    sree2403

    sree2403 Inactive Thread Starter

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    Thanks PeteC
     
    sree2403,
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  7. 2009/09/17
    PeteC

    PeteC SuperGeek Staff

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    You're welcome :)
     
    PeteC,
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