AOC-SLG3-2M2 to Bifurcate or not Bifurcate on X9DRi-LN4F+

Discussion in 'RAID Controllers and Host Bus Adapters' started by John M., Mar 14, 2018.

  1. Philmatic

    Philmatic Member

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    Just a quick update, picked up another AOC-SLG3-2M2, along with two more HP EX920’s (Newegg had them on sale) and plopped it into slot 2, turned on bifurcation (4x4x8) and it worked perfectly.
     
    #21
  2. sqrdevl

    sqrdevl New Member

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    Could you share a copy of your bios
     
    #22
  3. IMI4tth3w

    IMI4tth3w New Member

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    Can you share more information on this? I'm running a X9DRi-F motherboard trying to get the AOC-SLG3-2M2 working with dual intel 1TB nvme ssds. So far i have updated bios from 3.2a to 3.3 using the IPMI interface with no changes. I have tested bifurcation in slots 1 and 5 with no success, both only allowing me to see 1 of the ssds. Current using this for an unraid/media server. So i don't need to boot from the ssds, just want the nvme raid 0 to have 2TB of cache for the unraid server.

    I've got a quadro p2000 in slot 6 and a SAS2 raid card attached to a backplane in slot 3
     
    #23
    Last edited: Sep 27, 2019
  4. Zervun

    Zervun Member

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    Sorry I just saw this now - I'm not sure I have a copy of my bios and I'm not sure how to download the bios on the server. I will look around to see if I have it.
     
    #24
  5. Zervun

    Zervun Member

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    The stock bios doesn't work, you have to inject the nvme driver into the bios as it isn't included in the default bios.

    Follow this thread [Guide] How to get full NVMe support for all Systems with an AMI UEFI BIOS

    When you get down to modding the bios, do not use UEFItool use the AMI tool. There is an issue with supermicro bios and the UEFItool.

    Once you have your new bios installed, the nvme will show up as something generic like "Windows nvme device" or something like that. If you have two nvme devices (I have 2x evo 960's) it will show two entries with the same name, which kind of makes it a pain knowing which is which but it works.
     
    #25
  6. rynal1995

    rynal1995 New Member

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    Hello Guys,

    I hope i can bring some light to this problem.

    Here a short explanation of my Setup:

    Mainbord: x9dri-ln4f+ with the latest bios
    M.2 adapter: AOC-SLG3-2M2
    M.2 SSDs 2x Samsung 970 Evo V-Nand NVMe SSDs 250GB

    i have to say after resolving some problems it works finaly, there are 3 key points you have to take care of.

    1. Put your Pcie slots populated with the m.2 adapter in the right bifurcate mode in my case i used 4x/4x/4x/4x on every slot i put in such a card.

    2. u have to put your mainboard in to UEFI Boot mode. (no bios compatibility mode. i also disabled pxe boot)

    3 u have to install your OS in full UEFI mode in my case i used Proxmox (wich is debian based) (The easiest way to find out if you are running UEFI or BIOS is to look for a folder /sys/firmware/efi. The folder will be missing if your system is using BIOS.)

    thats are the 3 key steps to use pcie bifurcate on an supermicro x9dri-ln4f+

    i got som problems with an lsi hba and UEFI Boot, make sure ur other hardware like network-cards and stuff support UEFI, at start i would pull out everything expect the nvme drives for testing.

    if anyone get some questions, just ask!
     
    #26
    Last edited: Nov 7, 2019
  7. josh

    josh Active Member

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    Did you ever manage to get this to work? I have the same mobo, trying to make it work with ASUS Hyper M.2 card. Tested bifurcation in all slots, still seeing only 1 drive. Trying to figure out if it's a card problem and that maybe the AOC-SLG3-2M2 would actually work since they're both from SM. My IPMI firmware is 03.54 and BIOS is 3.3.
     
    #27
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