Can you use two M.2 SSD in this MBO?

Discussion in 'Motherboards' started by ssal, Sep 14, 2019.

  1. ssal

    ssal Active Member

    Messages:
    541
    This is regarding ASRock B450M PRO4 AM4 AMD Promontory B450 SATA 6Gb/s USB 3.1 HDMI Micro ATX AMD. The specs said this:

    "Equipped with M.2 slot that supports both SATA3 6Gb/s and PCIe Gen3 x4 Ultra M.2 interface that pushes data transfer speeds up to 32Gb/s, and is compatible with ASRock's U.2 Kit for installing some of the world's fastest U.2 PCIe Gen3 x4 SSD"​

    But when I spec 2 of this:

    I got a warning from PCPartPicker that said this:
    "The motherboard M.2 slot #2 shares bandwidth with a SATA 6.0 Gb/s port. When the M.2 slot is populated, one SATA 6.0 Gb/s port is disabled."
    Does that mean I CANNOT use 2 M.2 SSD drives in this MBO?
     
  2. beers

    beers Moderator Staff Member

    Messages:
    8,456
    Why not just get one larger M.2 NVME drive and be done?

    It has two M.2 slots but one only supports SATA. There's a few SATA Drives that fit into that form factor and are limited similarly to a 2.5" SATA drive as far as bus bandwidth.
     
  3. ssal

    ssal Active Member

    Messages:
    541
    The reason for two separate M.2 SSD (if possible) is to have one for the OS, programs/apps and cache. I can image this drive to save it in the HHD. If the system is attacked by virus, like ransom/blackmail, I can restore the the system drive from the image without too much problem.

    I also want to have another M.2 SSD for the dedicated video project, which requires fast I/O when editing.

    If I cannot use 2x M.2 SSD, I will have one SATA SSD and one M.2 SSD.

    I put together the this build. Can someone check it out and see if I am doing it right? I am a total newbie in building my own machine.
     
  4. Intel_man

    Intel_man VIP Member

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    5,770
    Why don't you just partition it?
     
  5. ssal

    ssal Active Member

    Messages:
    541
    When I edit video, it uses cache. Ideally, it should be a separate drive so the I/O are separated from the I/O of the video itself. But I guess I can put it in a separate partition of the same drive with a little compromise.

    When virus attacks, does it localize in the partition of the OS only?
     
  6. johnb35

    johnb35 Administrator Staff Member

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    42,020
    Usually yes.
     
  7. ssal

    ssal Active Member

    Messages:
    541
    How do I partition the M.2 drive into 50% OS and 50% data before I install the OS in it?
     
  8. OmniDyne

    OmniDyne Active Member

    Messages:
    621
    The Intel 660p really isn't suited for the kind of workloads you've mentioned due to endurance and performance reasons.

    The 1TB HP EX920 is sitting at $112, which is quite a deal and would be more appropriate:

    https://www.newegg.com/hp-ex920-1tb/p/N82E16820326778
     
  9. johnb35

    johnb35 Administrator Staff Member

    Messages:
    42,020
    By using the installation media. Have no other drives attached to the system while installing windows. When you get to the point where it asks you where to install, click on new and create the partitions you want.
     
  10. Okedokey

    Okedokey Well-Known Member

    Messages:
    9,506
    In addition, if that doesn't work you can use Diskpart.
     

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