Hey guys, is it ok if I use a LSI HBA card for Pcie 1x slot? My 16x slot is being used by my 8x NIC and my motherboard does not support difurcation. I planned to have two LSI HBA card on my two 1x PCIE slot, is it safe to have drives running on two LSI HBA card?

  • Party_9001@alien.topB
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    1 year ago

    I mean… As long as you can get it in there it’ll run. Just not at full bandwidth ¯⁠\⁠_⁠(⁠ツ⁠)⁠_⁠/⁠¯

    • SciencioGT@alien.topOPB
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      1 year ago

      There will be bottlenecks? I have 7200 rpm drives, can I clarify, if each drives is 200 mb/s and PCIe 1x use 1gb/s. I will be good? The LSI HBA card is one SAS to 4 Sata, so 4 x 200 mb/s = 800 mb/s. I’m not sure if this is how it works.

      • Party_9001@alien.topB
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        1 year ago

        There will be bottlenecks?

        Probably? Maybe? ¯⁠\⁠_⁠(⁠ツ⁠)⁠_⁠/⁠¯ didn’t give a whole lot of information

        PCIe 1x use 1gb/s

        Pcie gen 3.0 x1 is 1GBps. Is both your slot AND your card gen 3 or higher? Older cards are usually gen 2

        4 x 200 mb/s = 800 mb/s

        Yes that is how that would work assuming the card uses gen 3… Although given the fact that you said theres 1 SAS port, I doubt its gen 3. Single port cards were mainly a thing on SAS 1/2 cards, which predominantly used PCIe gen 2.

        • SciencioGT@alien.topOPB
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          1 year ago

          Thanks for the advice! Sorry, forgot to give more information about my server I use a

          Prime B550M A (wifi) motherboard - 2x PCIe 3.0 1x slots

          Ryzen 5500

          16 GB RAM

          NIC card = Intel X540 t2 (recently purchased)

          LSI HBA card I planned to purchase = LSI 9211-4i - PCI 2.0