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  1. #1
    New ROGer Array
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    Unhappy Can't enable SLI with Xonar phoebus installed

    Hello,

    I have 2 GTX 780's in my System and one Xonar Pheobus whitch is installed in the 3 PCI slot. My grafics cards work fine but I have no option to enable the sli support. But when I remove my phoebus from my system I can enable SLI whats wrong there?

    Mainboard: Asrock Z87 Professional
    CPU: I7 4770K
    GPU1: GTX 780
    GPU2: GTX 780
    SoundCard: Asus ROG Xonar Phoebus
    Last edited by TimoViBrtiannia; 06-21-2015 at 07:11 PM.

  2. #2
    Moderator Array Nate152 PC Specs
    Nate152 PC Specs
    MotherboardROG Maximus IX Code
    Processori7-7700k 5.2GHz Delidded
    Memory (part number)16GB G.Skill Trident Z 4000MHz 16-16-16-39-2T
    Graphics Card #1Titan Xp - EKFC waterblock
    Graphics Card #2Titan Xp
    Sound CardROG SupremeFX 2015
    MonitorHP ZR30w
    Storage #1Toshiba OCZ VX500 256GB
    CPU CoolerSwiftech Apogee GTZ
    CaseThermaltake Armor+ VH6000
    Power SupplyPC Power & Cooling Turbo Cool 1200w
    Keyboard Razer Anansi
    Mouse Logitech G500
    Headset Sennheiser HD6XX
    OS Windows 10 Home 64 bit
    Accessory #1 Asus optical drive
    Accessory #2 Koolance ERM-2K3U
    Nate152's Avatar
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    hello TimoViBrtiannia

    If you have the sound card in the third pcie slot, it drops the pcie lanes to x8 x4 x4. Nvidia gpu's need x8 to run.

    Try connecting it in the pcie x 1 slot.

  3. #3
    New ROGer Array
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    But when I put the soundcard in the first slot, i can't connect the sli bridge because its to short

  4. #4
    New ROGer Array
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    Hi,
    The first gpu uses 8x lanes and the second one 4x lanes

  5. #5
    Moderator Array Nate152 PC Specs
    Nate152 PC Specs
    MotherboardROG Maximus IX Code
    Processori7-7700k 5.2GHz Delidded
    Memory (part number)16GB G.Skill Trident Z 4000MHz 16-16-16-39-2T
    Graphics Card #1Titan Xp - EKFC waterblock
    Graphics Card #2Titan Xp
    Sound CardROG SupremeFX 2015
    MonitorHP ZR30w
    Storage #1Toshiba OCZ VX500 256GB
    CPU CoolerSwiftech Apogee GTZ
    CaseThermaltake Armor+ VH6000
    Power SupplyPC Power & Cooling Turbo Cool 1200w
    Keyboard Razer Anansi
    Mouse Logitech G500
    Headset Sennheiser HD6XX
    OS Windows 10 Home 64 bit
    Accessory #1 Asus optical drive
    Accessory #2 Koolance ERM-2K3U
    Nate152's Avatar
    Join Date
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    the pcie x1 slot is the shortest slot and is black, it's just big enough for your sound card to fit into.

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