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  • #2197872

    win7 ram,core2 due


    by wmmahjoub ·

    how i can use or specifiy a definit software to work with CPU0 or CPU1 in core 2 due laptop with win 7 operating sustem,also i have toshiba laptop satellite A200-200 2.2 GHZ with 4.00GB ram,I made clean win 7 upgrade(format) it gives me 4.00GB ram (3.00GB usable( how to use the whole 4.00 GB ram?

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    • #2839207


      by wmmahjoub ·

      In reply to win7 ram,core2 due


    • #2839206

      Go to 64-bit OS

      by mehulnpatel ·

      In reply to win7 ram,core2 due

      Regarding Memory it seems that you installed a 32-bit Windows 7 Operating System. This supports only 3GB RAM. You will have to install a 64-bit Windows 7 Operating System to utilize the full 4GB RAM.

      • #2839078


        by thechas ·

        In reply to Go to 64-bit OS

        Just to add some detail, all 32 bit operating systems have a 4GB memory address limit.

        For years, this was not an issue. Computers never had memory fields large enough to reach the 4GB limit.

        Once chip-sets and motherboards were able to have 4GB of RAM installed, users started finding out that they could not access all of the RAM they installed.

        The upper memory address range is used for system resources such as addressing the PCI bus and video card. Depending on the BIOS, chip-set and installed hardware, you lose between 750 MB and 1.5GB of the upper memory address space to system hardware.

        As stated, the only “fix” is to switch to a 64 bit operating system. Of course, the BIOS and CPU must support full 64 bit mode before you can install a 64 bit OS. You should run the Windows 7 upgrade advisor to see if your system can run the 64 bit version.


    • #2839167

      Set affinity…

      by —tk— ·

      In reply to win7 ram,core2 due

      1st poster is correct about the memory, upgrade to a 64 bit OS.

      but to force a program to use certain cores, and only that core you want to set the “affinity”. To do this Open “Task Manager” > right click the process you want to set, and you will see “Set Affinity…” click it > and make your alterations as necessary..

      Best of luck

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