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Cake day: June 2nd, 2024

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  • SitD@lemy.lolOPtoPC Master Race@lemmy.worldPCIe bifurcation
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    1 month ago

    That’s precisely the SSD PCIe solution that I bought. ^^ Yeah, might have to redistribute… Thanks for letting me know about the compatibility listing, I wasn’t aware of it. I’ll check if I can get one of those second hand.

    Edit: I’m slightly worried about ASUS as a mainboard supplier though because of their recent rootkit escapades


  • SitD@lemy.lolOPtoPC Master Race@lemmy.worldPCIe bifurcation
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    1 month ago

    It’s a MSI X470 GAMING PRO. Tried both upper x16 slots. The second one seems to be x8, but the first one doesn’t work either despite being x16. I have other m.2 slots but they’re already used up - however those are smaller SSDs so worst case I could move my OS to a SATA drive and populate those m.2 slots with the larger and newer SSDs that i bought! 😂


  • SitD@lemy.lolOPtoPC Master Race@lemmy.worldPCIe bifurcation
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    1 month ago

    as x4/x4, but PLX would divvy it all up essentially 4x M.2 at x2/x2/x2/x2, that kinda thing. If this adapter doesn’t have it and you can’t get this to work, and you’re willing to blow another hundred bucks, that other kind of adapter would def work.

    Without knowing your motherboard I’d def download the manual and ctrl+f some promising keywords such as ‘bifurcation’ or ‘PCI’ and basically hunt for anything in the manual that describes settings to enable this. Sometimes on a 3 slot board the bottom ‘chipset’ slot can be toggled to run something different than PCH, like some other controller.

    I’d also try running the adapter in every possible configuration, on the most current supported PCI-E standards and a previous generation if motherboard allows, ie: adapter top slot, GPU middle slot, GPU top slot, adapter 3rd slot (if mobo has one), disable PCI-E 4.0 or enable 3.0 each time just to see if some configuration works (kinda tedious but costs 0 dollars so

    Thanks for the hints. I’ll try to put it in gen 3.0 mode and see if I get more settings there, good idea!


  • SitD@lemy.lolOPtoPC Master Race@lemmy.worldPCIe bifurcation
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    1 month ago

    ur “main” NVME SSD. Your chipset typically has like 4 or 8 more (the very bottom slot). And you have to figure out some sort of combo where that works, and they’re not combineable. What’s worse is a lot of motherboards hard wire those extra x4 pcie lanes to the M.2 SSD slots so you get no choice.

    I’ve put the bifurcation card next to the CPU now and it only offers two x4 lanes. I thought zen2 should be able to handle bifurcation, so if it was directly hooked up with the CPU, I should get all four. Seems chipsets still have some influence over the first PCIe slot.