8-core PC but only 4 processors being used

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  1. Posts : 3
    Windows 7 Home Premium
       #1

    8-core PC but only 4 processors being used


    hi all

    I have 8 processors and they all show up in the Device Manager. Under Windows XP all 8 of these were utilised, but I recently went over to Windows 7 and it only uses 4.

    How can I resolve this problem?

    thks a lot

    ed
      My Computer


  2. Posts : 1,849
    Windows 7 x86/x64, Server 2008r2, Web Server 2008
       #2

    Im showing that the Intel Xeon X5365 is only a 4 thread processor.
      My Computer


  3. Posts : 3
    Windows 7 Home Premium
    Thread Starter
       #3

    Maybe I have two of them?

    Not sure about the tech details - 8 of them show up under "processors" in Device Manager, and under Windows XP when I ran task manager, under "performances" you could see all 8 working. Now it's only 4.
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  4. Posts : 1,849
    Windows 7 x86/x64, Server 2008r2, Web Server 2008
       #4

    Ya need more that win 7 home premium mate

    Multi-core processor and multiprocessor limits

    The maximum quantity of cores in 1 physical processor of a PC that Windows 7 supports is: 32 for 32-bit, 256 for 64-bit. The maximum quantity of physical processors of a PC that Windows supports is: 2 for Professional, Enterprise, and Ultimate; 1 for Starter, Home Basic, and Home Premium.


    http://en.wikipedia.org/wiki/Windows_7
    at the very bottom
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  5. Posts : 654
    Windows 7 Ultimate x64
       #5

    i read somewhere here it is related to win7 'parking' the cores. i will try to find the thread.

    EDIT: Easy way to improve CPU usage
      My Computer


  6. Posts : 1,849
    Windows 7 x86/x64, Server 2008r2, Web Server 2008
       #6

    Its related to a software limitation to the os much like early versions of Xp being able to utilize 4+ gb or ram and no be x64. And Win7 Starter not being able to use more than 2Gb or ram.
      My Computer


  7. Posts : 3
    Windows 7 Home Premium
    Thread Starter
       #7

    How very annoying - the guy who upgraded for me obviously didn't know that and recommended Home Premium!

    Thanks for the info.
      My Computer


  8. Posts : 1,849
    Windows 7 x86/x64, Server 2008r2, Web Server 2008
       #8

    Not a problem.
    Sorry about that
      My Computer


  9. Posts : 457
    Microsoft Windows 10 Home Build 15036
       #9

    mckillwashere said:
    Ya need more that win 7 home premium mate

    Multi-core processor and multiprocessor limits

    The maximum quantity of cores in 1 physical processor of a PC that Windows 7 supports is: 32 for 32-bit, 256 for 64-bit. The maximum quantity of physical processors of a PC that Windows supports is: 2 for Professional, Enterprise, and Ultimate; 1 for Starter, Home Basic, and Home Premium.


    Windows 7 - Wikipedia, the free encyclopedia
    at the very bottom

    I use W7 Home Prem, I have a 4 core i7 processor and I see 8 processors running in nearly ALL my processor monitors. Each core has two processors. That is the way I understood it would work BEFORE I bought the system. Is Wiki wrong, this time?
      My Computer


  10. Posts : 1,849
    Windows 7 x86/x64, Server 2008r2, Web Server 2008
       #10

    PeaB4YouGo said:
    mckillwashere said:
    Ya need more that win 7 home premium mate

    Multi-core processor and multiprocessor limits

    The maximum quantity of cores in 1 physical processor of a PC that Windows 7 supports is: 32 for 32-bit, 256 for 64-bit. The maximum quantity of physical processors of a PC that Windows supports is: 2 for Professional, Enterprise, and Ultimate; 1 for Starter, Home Basic, and Home Premium.


    Windows 7 - Wikipedia, the free encyclopedia
    at the very bottom


    I use W7 Home Prem, I have a 4 core i7 processor and I see 8 processors running in nearly ALL my processor monitors. Each core has two processors. That is the way I understood it would work BEFORE I bought the system. Is Wiki wrong, this time?

    you have one physical processor.... he has 2 look up the specs for his machine. it linked directly to the MS website.
      My Computer


 
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