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  1. #1
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    Is M.2 SSD mode (SATA 3 or PCIE) dictated by the BIOS configuration or by the SSD.

    How do I select PCIE mode for M.2 NVME SSD's? My motherboard is the Maximus IX Extreme.

    I have SSD's in slot M.2_1 and M.2_2. Both are detected by BIOS as being in SATA mode. If I go into BIOS, Advanced, Onboard Devices and attempt to force PCIE mode operation then they are not detected at all.

    Motherboard Documentation does not cover this issue.

    So I did a bit of research and need some users on the forum to confirm this.

    I have these SSD. Crucial MX300 1TB M.2 (2280) Internal Solid State Drive - CT1050MX300SSD4 . Note the notches on the connection interface, there are 2. https://www.newegg.com/Product/Produ...82E16820156155

    These 2 SSD have only 1 notch on the connection interface.
    https://www.newegg.com/Product/Produ...82E16820147595
    https://www.newegg.com/Product/Produ...82E16820249087
    They both explicitly say that they support PCI-Express 3.0 x4.

    So question is. Is M.2 NVME SSD mode (SATA 3 or PCIE) dictated by the BIOS configuration or by the NVME SSD used?

  2. #2
    New ROGer Array kaneslair PC Specs
    kaneslair PC Specs
    MotherboardAsus Maxius IX Apex
    Processori7-7700
    CaseCooler Master Storm Trooper

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    This is a SATA M.2 SSD, NOT an NVMe (PCIe) M.2 SSD. It's controlled by the SSD.

  3. #3
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    Thanks.

    Looks like I spent $500 on M.2 SSD that I didn't want. Live and Learn.

  4. #4

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