Running 2 GPUs - Possible?

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  1. Posts : 7,466
    Windows 10 Home Premium 64bit sp1
       #11

    You will not get them both to work reason being 2 different generations and 2 different ram types one being DDR3 and other DDR5

    I didn't notice you were trying a 4850 and a R7 GPU besides you should be able to use 2 monitors with just the R7 and use the other as a backup
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  2. Posts : 439
    Windows 7 pro x64 SP1
       #12

    Britton30 said:
    Hi there,

    All of the r9-270's I see have 2 DVI ports, why can't a DVI/VGA adapter be used on both?
    The pic on the Asus site shows DVI-I and DVI-D. IIRC only DVI-I has analog data.
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  3. Posts : 1,045
    Win8/8.1,Win7-U64, Vista U64, uncounted Linux distor's
       #13

    The asus r9270x has...

    D-Sub Output : Yes x 1 (via DVI to D-Sub adaptor x 1)
    DVI Output : Yes x 2
    HDMI Output : Yes x 1
    Display Port : Yes x 1 (Regular DP)
    HDCP Support : Yes

    You have multi monitor support. Remove that 4850. You can not xfire different gpu's, they need to be the same model.
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  4. Posts : 439
    Windows 7 pro x64 SP1
       #14

    OP has 2 vga monitors. Gonna need a digital-analog adaptor of some kind.
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  5. Posts : 12,364
    8 Pro x64
       #15

    By rights, with just the 270x installed (plus the drivers) the 4890 should be seen and usable.

    You cant have two different versions of Cat drivers installed.

    And as mentioned above, it is not possible to Crossfire the 4890 and 270X.

    Since you only need to run to two monitors, I'd remove the 4890. For the VGA inputs on the monitors, simply purchase 2 DVI> VGA adapters. If all you have cable wise are VGA cables, you will need two DVI cables as well.
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  6. Posts : 179
    Windows 7
    Thread Starter
       #16

    Ahh thanks. Thanks for all the help
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  7. Posts : 3,118
    Win7 Home Premium x64 SP1
       #17

    smarteyeball said:

    Since you only need to run to two monitors, I'd remove the 4890. For the VGA inputs on the monitors, simply purchase 2 DVI> VGA adapters. If all you have cable wise are VGA cables, you will need two DVI cables as well.
    I'm pretty positive that AMD cards only support an analogue display via adapters from one of the DVI out puts, at least this has been the case for the AMD card's I've owned.

    There are a variety of DVI ports which support different connections. The ATI 6800 series cards commonly have the following DVI connections:

    one DL-DVI-I
    one SL-DVI-D
    DL is dual link which provides support for higher resolution like 2560x1600, SL is single link which doesn't support higher resolutions like 2560x1600, DVI is the connector form factor, I is integrated digital and analog support and D is digital only support

    So only the first supports an analog connection using a simple adapter.
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  8. Posts : 179
    Windows 7
    Thread Starter
       #18

    Found out that there is no adapter to transform vga to dvi-d because dvi-d is digital and vga is analog.
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  9. Posts : 179
    Windows 7
    Thread Starter
       #19

    Guys what do I need to do? Getting mixed responses.
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  10. Posts : 24,479
    Windows 7 Ultimate X64 SP1
       #20

    To better help us to help you would you please add your systems specs? Here's the correct way to do it. :SystemInfo See Your System Specs Under System Manufacturer/Model Number add whether it is a desktop or laptop and whether self built. Very important

    Log in to Seven Forums and you will be able to transfer the info directly to the specs page in your profile from within the System Info app.

    Your System Specs here.

    After doing this your specs will be available in each of your posts.
    Click on My system Specs in the lower left of this post to see how it should look.:)
    Full instructions are in the tutorial.
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