Choosing a compatible M.2?

Discussion in 'Hard Drives and Solid State Drives' started by jac, Apr 8, 2018.

  1. jac

    jac Member

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    I'm trying to make heads or tails out of available M.2 ssd's for the Supermicro A2Di-4C-HLN4F.cfm board. I basically don't want to buy a feature that will never be utilized because the ssd I choose will live and die with the board.

    A2SDi-4C-HLN4F | Motherboards | Products - Super Micro Computer, Inc.

    Supermicro lists
    • M.2 Interface: PCI-E 3.0 x2 and SATA
      M.2 Form Factor: 2242, 2280
      M.2 Key: M-Key

    but no mention of 'nvme' in the bullet point.

    On their 'Tested M.2 List' they list a whole bunch of nvme models. Is nvme support implied due to the technology?
     
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  2. BlueLineSwinger

    BlueLineSwinger Active Member

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    With the exception of early PCIe slot cards that required their own special drivers, PCIe SSDs are NVMe. Also, I'm pretty sure I've never seen a non-NVMe PCIe SSD in the m.2 form-factor.

    Future mainboards will surely feature increased capabilities (e.g., PCIe 4), but it's unlikely that a SSD out today wouldn't work.
     
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  3. amalurk

    amalurk Active Member

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    Buy an NVME one and not an SATA m2. Sata in m.2 format is dead, no one has it in their future roadmap. Their are very few enterprise drives in m.2. format. Intel P4501 comes to mind in m.2, you could also do a Samsung 960pro. It appears your slot is only x2 pci-e and these drivers are faster than x2 and can use x4 if available so, it will still be able to do double or more the speed of an sata drive but you won't get the top end of sequential the drives are capable of with that board.
     
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  4. EffrafaxOfWug

    EffrafaxOfWug Radioactive Member

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    Definitely NVME; I use a 32GB optane M2 in my A2SDi-8C+-HLN4F as a cache drive.
     
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  5. ivan1355

    ivan1355 New Member

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    Just like to ask you, is it showing you in bios that the system recognized m.2 drive , or it coming available when you start installing os ? I just got an A2SDi-4c -HLN4F and try to use Samsung sm961 but not recognize nowhere in the bios.
     
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  6. EffrafaxOfWug

    EffrafaxOfWug Radioactive Member

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    I've not looked in the BIOS but it's perfectly visible as an NVME device in the OS:
    Code:
            *-pci:2
                 description: PCI bridge
                 product: Intel Corporation
                 vendor: Intel Corporation
                 physical id: 10
                 bus info: pci@0000:00:10.0
                 version: 11
                 width: 64 bits
                 clock: 33MHz
                 capabilities: pci pciexpress pm msi normal_decode bus_master cap_list
                 configuration: driver=pcieport
                 resources: irq:27 memory:df520000-df53ffff memory:df300000-df3fffff
               *-storage
                    description: Non-Volatile memory controller
                    product: Intel Corporation
                    vendor: Intel Corporation
                    physical id: 0
                    bus info: pci@0000:03:00.0
                    version: 00
                    width: 64 bits
                    clock: 33MHz
                    capabilities: storage pm msix pciexpress msi nvm_express bus_master cap_list
                    configuration: driver=nvme latency=0
                    resources: irq:22 memory:df310000-df313fff memory:df300000-df30ffff
    
    Does your SM951 show up in any other devices?
     
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  7. trumee

    trumee Member

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    I have a Samsung 128GB CM871a Sata Ssd (not NVME) and it works in A2SDi-4c -HLN4F.
     
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