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Z390 Dark - Question concerning the M.2 Key-M configuration

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Paul.Schriver
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2020/02/08 12:53:14 (permalink)
If I install 2 IDENTICAL M2 SSDs (both NVMe (knowing that the NVMe on PM2 will behave like a standard SATA SSD)
Installing 1 on PM2 and 1 on U.2..
Will there be a difference in throughput? (read/write)
Thanks!

Tks
P.S.
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    coolmistry
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    Re: Z390 Dark - Question concerning the M.2 Key-M configuration 2020/02/08 15:40:15 (permalink)
    No it will be PCI-E x4 not SATA thought because it support NMVE!
    If you are getting Samsung M.2 support NMVE or others it will no problem for your motherboard have already support NMVE 
    EDIT > it will be no change speed read/write

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    Paul.Schriver
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    Re: Z390 Dark - Question concerning the M.2 Key-M configuration 2020/02/09 04:30:15 (permalink)
    coolmistry
    No it will be PCI-E x4 not SATA thought because it support NMVE!
    If you are getting Samsung M.2 support NMVE or others it will no problem for your motherboard have already support NMVE 
    EDIT > it will be no change speed read/write


    Yep both SSDs are Samsung 970 EVO Plus NVMe M.2..
    I understand that both U.2 and PM2 will each use 4 PCH PCIe lanes.
    My question is, will I get a better performance from the SSD when it is attached to the U.2 plug using a Mini-SAS(SFF-8643) to U.2 (SFF-8639) NVMe SSD Cable compared to connecting the M.2 directly to the PM2 M.2 connector on the Motherboard?  (I know I will need an 2.5" enclosure with a plug adapter to house the SSD) 
    Tks.

    Tks
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