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-   -   Upgrade from windows vista to widows 7 professional, unable to read 4 gigas ram (https://www.askmehelpdesk.com/showthread.php?t=466552)

  • Apr 23, 2010, 09:38 AM
    adigaay
    Upgrade from windows vista to widows 7 professional, unable to read 4 gigas ram
    I had recently upgrade my windows sony vaio laptop from windows ( vista) to windows ( 7 professional 32 bit ) but the problem is that after the upgrade , the laptop only able to see a : ( 2.47 GB ) of memory RAM instead of :( 4.00 GB) RAM , and my sony classification is : Intel(R) Core(TM)2 Duo Processor , [email protected]
    Installed memory (RAM) : 4.00 GB ( 2.47 GB usable)
    System type : 32-bit operating system

    And I feel that my laptop application is slow that it was before... so please can someone help me about my problem!!
  • Apr 23, 2010, 10:18 PM
    Scleros

    Run MSCONFIG from a command prompt and see if the Max Memory option is checked under the Advanced Boot options.
  • Apr 24, 2010, 01:36 AM
    adigaay
    Quote:

    Originally Posted by Scleros View Post
    Run MSCONFIG from a command prompt and see if the Max Memory option is checked under the Advanced Boot options.

    Hi there : Scleros ,
    Thank you for your answer but it still the same problem , I had check it and make it to : 4096 , but nothing had change!!
  • Apr 24, 2010, 05:47 PM
    Scleros

    The max memory option should be left unchecked. Since it was already unchecked, the value for your usable amount is correct for your specific computer configuration. See The usable memory may be less than the installed memory in 64-bit version of Windows 7 for a discussion of things that will reduce the usable memory even on 32 bit systems. Also, if your computer supports Physical Address Extensions and the feature can be enabled, all of the memory may then be listed as usable. The documentation for the computer may have this information. If you have need for this much or more memory, 64 bit computing is the way to go.

    Additional Background on Windows and Memory:
    RAM, Virtual Memory, Pagefile and all that stuff
    Memory Limits for Windows Releases
    Mark's Blog : Pushing the Limits of Windows: Physical Memory
    Geoff Chappell - Licensed Memory in 32-Bit Windows Vista
    The Old New Thing : Why can't I see all of the 4GB of RAM in my machine?
    IanG on Tap: 3GB or 4GB - a 'Virtual' Memory Upgrade

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