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Is an X399 rig still viable?

This story is from 2026-09-16. It is preserved in the archive; the latest stories are on the live feed.

I saw a couple of these motherboards with 4x pcie 3.0 x16 slots paired with a 2nd gen threadripper 2920x/2950x for like $350 and I was wondering if they are still worth using for multi gpu builds?

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  1. 2026-09-16 05:39 · r/LocalLLaMA
    Is an X399 rig still viable?

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