Added second GPU for PhysX computing - Windows stuck on CLASSPNP.SYS


  1. BlackMartin
    Posts : 3
    Windows 7 Ultimate x64
       New #1

    Added second GPU for PhysX computing - Windows stuck on CLASSPNP.SYS


    Hello.

    Im tried add second card (nVidia 8600GT) into second slot on motherboard for PhysX computing. Now if i try boot, my system stuck on "Starting Windows" screen and if I go into safe mod, stuck on loading file "CLASSPNP.SYS".

    Where can by problem please?
    Thanks for your responds.
      My Computer
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  3. cloud8521
    Posts : 535
    Windows 7 Pro 64bit
       New #2

    fill out your system specs please
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  4. BlackMartin
    Posts : 3
    Windows 7 Ultimate x64
    Thread Starter
       New #3

    Okey, filled.
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  6. BlackMartin
    Posts : 3
    Windows 7 Ultimate x64
    Thread Starter
       New #4

    So nobody know? :/
      My Computer
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  7. Everlong
    Posts : 3,322
    Windows 8.1 Pro x64
       New #5

    Have you tried taking the Physx card out, then booting in to Windows and uninstalling the graphic drivers, then booting up with both cards in and no drivers on?
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