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  1. #1
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    Maximus XI Formula, PCIEX16_2 slot

    Hi, I have a new XI Formula, and I understand that when there are 2 M.2 SSD's installed, the PCIEX16_1 slot is limited to x8.

    If that is so, am I losing any performance by installing my GPU in PCIEX16_2, which is x8 as well?

    I ask this only because the build looks much better with the GLU in the lower slot.

    Thanks

  2. #2
    ROG Guru: Green Belt Array drop4205 PC Specs
    drop4205 PC Specs
    Laptop (Model)What are laptops
    MotherboardMaximus XI Formula
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    Memory (part number)Gskill Trident Z F4-3200C14-32GYZR
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    CasePhantex Evolove X
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    16_1 should be by 16 with one m.2 in. It just disables sata2 if in m.2_1.
    Maximus XI Formula, I9-9900k, Phantex Evolove X, Seasonic Titanium 850W, Custom loop PE360+SE360 Rad, G.Skill Trident Z F4-3200C14 32g, Nvidia Reference RTX 2080 TI, Samsung 970 EVO Plus 1Tb, ROG Strix Flare keyboard, ROG Gladius II

  3. #3
    Administrator Array Silent Scone@ASUS's Avatar
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    Both M.2 ports use PCH lanes, so GPU speed should be unaffected whilst in PCIEX16_1.

  4. #4
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    Quote Originally Posted by drop4205 View Post
    16_1 should be by 16 with one m.2 in. It just disables sata2 if in m.2_1.
    Thanks for the answer.

    What happens when there are 2 M.2s installed, as I have? Is there no effect on the PCIEX16_1 slot?

  5. #5
    Administrator Array Silent Scone@ASUS's Avatar
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    Quote Originally Posted by thunderrd View Post
    Thanks for the answer.

    What happens when there are 2 M.2s installed, as I have? Is there no effect on the PCIEX16_1 slot?
    No effect, as they're not using CPU lanes. I have the same setup here, the GPU remains at 16x speed.

  6. #6
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    OK, cheers for the answer!

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