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  1. #1
    New ROGer Array
    Join Date
    Dec 2018
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    Pcie lane usage with dual gpu and x4 nvme drives

    Hello

    I am trying to figure out if I will be able to run 2 2080 ti in sli in x16/x16 config with 3 nvme drives (each at x4) , I would like to add a 4th nvme drive sometime in the future if possible

    My setup is a somewhat new build :

    9980xe
    Asus rampage omega
    rog strix oc 2080 ti ( currently only have one)
    m.2_1: wd black 500gb (os drive)
    m.2_2: hp ex950 2tb
    Dimm slot: intel 660p 2tb ( on the way )

    I would like to confirm that with the setup above I can run 2080 ti in sli x16/x16 before investing in a second gpu because I will have 3 m.2 nvme drives. If I can i will pick up a 4th drive as well. I know as long as I do not occupy the 3rd pcie slot on the mobo that the gpu's can both run at x16. I am unclear on how occupying 3 or 4 nvme slots on the board will affect how the lanes are distributed to gpu's in sli ( pcie slot 1 & 2).

    Thanks

  2. #2
    ROG Guru: White Belt Array Darren Stevens PC Specs
    Darren Stevens PC Specs
    MotherboardASUS ROG Rampage VI Extreme
    ProcessorIntel Core i9 7980XE
    Memory (part number)G.Skill Trident Z RGB F4-3200C16Q-32GTZR 32GB (4x8GB) DDR4
    Graphics Card #1ASUS ROG Poseidon GeForce GTX 1080 Ti Platinum 11GB
    Graphics Card #2ASUS ROG Poseidon GeForce GTX 1080 Ti Platinum 11GB
    MonitorASUS PG348Q ROG Swift 34in 100Hz G-Sync IPS Gaming Monitor
    Storage #1Samsung 960 Pro 512GB NVMe M.2 SSD
    Storage #2Samsung 960 Pro 512GB NVMe M.2 SSD
    CPU CoolerEK-FB ASUS ROG R6E RGB Monoblock - Nickel
    CasePhanteks Enthoo Elite Satin Black
    Power SupplyCorsair AX1500i Digital ATX Modular
    Keyboard ASUS ROG GK2000 Horus RGB Mechanical Gaming Keyboard
    Mouse ASUS ROG Spatha Wireless Laser Gaming Mouse
    Headset ASUS ROG Cerberus Gaming Headset
    Mouse Pad ASUS ROG Sheath Gaming Surface
    Headset/Speakers ASUS ROG Centurion True 7.1 Gaming Headset
    OS Windows 10 Pro 64 bit UEFI Install
    Network RouterASUS ROG Rapture GT-AC5300 Wireless Triband Router
    Accessory #1 Samsung 960 Pro 512GB NVMe M.2 SSD
    Accessory #2 ASUS ROG SLI HB Bridge - 4 Slot
    Darren Stevens's Avatar
    Join Date
    Sep 2015
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    Posts
    109

    You have 44 lanes on the CPU & 24 lanes on the chipset with your set up, so go nuts, enjoy.

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