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Build Trouble - Urgent

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  • Build Trouble - Urgent

    Hi gang;

    The computer store that ordered my new build is having some trouble.

    It seems that the Asus Prime X399-A Socket TR4 MB has unevenly spaced PCI-e slots and therefore, the bulky MSI GeForce 1080 Ti Gaming X cards do not fit.

    They want to replace the motherboard with one that has evenly spaced slots and also replace the GPU's with slightly thinner ones (I believe they recommended the EVGA ones).

    The motherboard they recommended is a 5 slot PCI-e one but unfortunately I did not get the model number. I believe it is this one:

    My concern is that the 4-5 slots will not be 16X. This is what the specs say:
    1. 2 x PCI Express x16 slots, running at x16 (PCIEX16_1, PCIEX16_2)
    2. 2 x PCI Express x16 slots, running at x8 (PCIEX8_1, PCIEX8_2)
      (The PCIEX16 and PCIEX8 slots conform to PCI Express 3.0 standard.)
    3. 1 x PCI Express x16 slot, running at x4 (PCIEX4)
      (The PCIEX4 slot conforms to PCI Express 2.0 standard.)
    Anyway, what would be the recommended motherboard for a 4X GTX 1080 Ti GPU Threadripper build? Someone recommended the Asus ROG Zenith Extreme X399 AMD but that is a $650 motherboard.

    This is a costly build so I want to get the right parts.

    Any prompt help is appreciated as I don't want them to order in a motherboard that is not suitable.

    Last edited by richard_rosenman; 14-05-2018, 04:48 PM.
    Richard Rosenman
    Creative Director

  • #2
    Don't have an answer for you but some other info that's relevant:
    For the 1080Ti cards if you plan on sticking it in same pc they should be the blower type cards with only 1 fan. Typically they're called Founder's Edition or Reference Edition cards. The design is such that the fan guides and blows the air out the back of the case. The typical gaming cards with super duper fans of 2 or 3 fans per card will generate excessive heat if you have a bunch of them in a single case as they dont blow the air out back, but just around inside the case. If you have them stacked against each other there's nowhere for the heat to go, therefor the blower type cards are better.

    Also, for rendering the slots don't all need to be 16X
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    • #3
      It seems all available tr4 boards are 2x x16, 2x x8. But I do not think it matters for GPU rendering. As far as I understand it, and you can read about here on the forums, the bandwidth is more than enough.
      I got the ASRock X399 Taichi for a rendernode because I could upgrade it for GPU Rendering.
      Have you read this?,37067.html You could start with less 1080ti and upgrade in a few month...


      • #4
        you will not get any noticeable difference in rendering speed going from 16x to 8x, maybe a tiny bit slower to start rendering but really, not worth worrying about. good advice about the blower fan cards though. or, of course, watercooled