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  1. #1
    ROG Junior Member Array
    Join Date
    Jul 2013
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    ROG STRIX Z270G GAMING BIOS 1301 lower m2_1 speed in raid0 to x2

    Hi!

    Upgraded bios to 1301 and reset settings, after that NVMe m2_1 (the one on the front side) has lower speed resulting in the raid only running at half speed, confirmed by testing with CrystalDiskMark 6.0.2

    Click image for larger version. 

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    Bios settings for M2_2 is PCIE as before and that works just fine at x4 speed.

    The setup is identical Samsing 960 EVO that runs in x4 speed and also did so with stock Bios

    Click image for larger version. 

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    The Z270G doesn't have bios options for changing m2_1 speed.
    There are no SATA disks attached, only 2x NVMe disks.

    Any ideas?

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