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Can I run two graphic cards in a computer

Discussion in 'General Hardware' started by DRDNA, Jun 5, 2012.

  1. DRDNA

    DRDNA

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    Can I run two graphic cards in a computer in non CF , non sli and have 4 monitors that will run on the two graphic cards simultaneously? Thank you TPU for any help that can be provided.
  2. Jizzler

    Jizzler

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    Yes.
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  3. 1freedude

    1freedude

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    If you find the right cards (read: at least one that is single slot) you could get six monitors going, if not more.
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  4. DarkOCean

    DarkOCean

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    yes.
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  5. qubit

    qubit Overclocked quantum bit

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    Technically yes from a hardware point of view. However, the drivers and operating system have to cooperate for it all to work properly.
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  6. slyfox2151

    slyfox2151

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    iv never had any problems with this using cards from nvidia/amd. should be a breeze to setup.

    insert card A... install drivers...
    insert card B... install drivers...

    reboot and done.
    DRDNA says thanks.
  7. DRDNA

    DRDNA

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    Thank you TPU as as usual you are correct!

    http://msdn.microsoft.com/en-us/library/windows/hardware/gg487344 describes the WDDM support for multiple adapters/multiple monitors on page 55 where it states:
    "Multiple Adapters and Multiple Monitors
    Windows 7 considers all graphics adapters that are connected to the PC along with all display devices that are connected to these graphics cards. If users connect a new graphics adapter to multiple display devices, Windows 7 enables all display devices without user intervention. If users disconnect a display device from one adapter and connect it to another adapter, Windows 7 applies the existing display settings with the new adapter. In addition, the Projection shortcut key works with multiple adapters."

    More importantly on page 87 it states:
    "In a heterogeneous multi-adapter configuration, the PC has more than one graphics adapter and uses more than one graphics drivers. A common example is the use of graphics adapters from two different manufacturers, each of which requires a different graphics driver from the respective manufacturer.
    Windows 7 supports heterogeneous multi-adapter configurations, whereas Windows Vista did not. In Windows 7, a system can have a heterogeneous multi-adapter configuration, with multiple GPUs that require different WDDM drivers. The WDDM model for Windows Vista required that all display adapters use the same driver."
    1freedude says thanks.

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