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  1. #1
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    Dimm.2 and second GPU conflict

    I am having an issue that when I install the Dimm.2 module on my Asus Rog Zenith II Alpha, My second GPU is stopped by windows. Installed in the Module is a new Gen 4 MP600 PCIE x4

    Set up:
    MOBO: Asus Rog Zenith II Alpha
    CPU: 64 core Threadripper 3990x
    Ram: 128 GB
    GPU 1: RTX Titan PCIE Slot #1
    GPU 2: RTX Titan PCIE Slot #3 Connected to GPU 1 with NVlink
    HD'S: Gen 4 MP600 PCIE x4 1 MP 600: Installed on Motherboard (not Dimm.2 Module) Running Win 10 Workstation
    Multiple other SSDs (not M.2s)

    Can someone explain to me why I might be having this issue and how I might resolve it?

    Thanks

  2. #2
    ROG Enthusiast Array machproo PC Specs
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    MotherboardROG DOMINUS EXTREME
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    Graphics Card #2NVIDIA TITAN RTX + SLI Bridge
    Monitor4 x Samsung SyncMaster 214T
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    Hello, how are your PCIe configured in the Bios: In Auto or in Dimm2-1-1, Dimm2-1-2, U.2? Depending on the configuration, the presence of Dimm2 Disable the PCIe x 16 of PCIe # 3

  3. #3
    ROG Junior Member Array
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    Quote Originally Posted by asmithey View Post
    I am having an issue that when I install the Dimm.2 module on my Asus Rog Zenith II Alpha, My second GPU is stopped by windows. Installed in the Module is a new Gen 4 MP600 PCIE x4

    Set up:
    MOBO: Asus Rog Zenith II Alpha
    CPU: 64 core Threadripper 3990x
    Ram: 128 GB
    GPU 1: RTX Titan PCIE Slot #1
    GPU 2: RTX Titan PCIE Slot #3 Connected to GPU 1 with NVlink
    HD'S: Gen 4 MP600 PCIE x4 1 MP 600: Installed on Motherboard (not Dimm.2 Module) Running Win 10 Workstation
    Multiple other SSDs (not M.2s)

    Can someone explain to me why I might be having this issue and how I might resolve it?

    Thanks
    I have the identical issue with slightly different hardware:
    A new Samsung 980 Pro I like to add in the DIMM.2 card
    2 RTX 2080 TI in slot #1 and #3 with NVLink

    Was running stable for almost 2 years without the 980 Pro. Tried to add it various different ways but always end up with code 43 for second GPU. Taking the DIMM.2 card out, everything runs normal again.

    Did anybody ever resolve this?

    Thanks

    Edit:
    I "fixed" this with DDU and a clean NVidia driver install.
    It tend to come back if I make changes in the BIOS but so far DDU always fixed it.
    Last edited by Late2theGame; 02-17-2022 at 01:55 AM. Reason: update

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