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Pcie M.2 NVMe (1100mb/s as storage, 400mb/s in os)

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  • Pcie M.2 NVMe (1100mb/s as storage, 400mb/s in os)

    Hi guys, I'bought a M.2 NVMe ssd to use in my oldy gigabyte Z68 (GA-Z68PDS3) Board. With the help of Stasio and Lost_N_BIOS (tweaktown and win-raid forums) I succesfully update my non uefi award bios to UEFI one, Z68PDS3.F9 > Z68PDS3M.U1A


    Before my uefi upgrade, my m.2 in storage mode, i have abour 1150mb/s in bench results. (atto, crystal, as ssd), With a try of 3 different versions of win10 , as a bootable device , my avarage is 400mb/s.
    Tried all posssible combinations in uefi, checked all drivers, policies, trim etc. in Os. Tere is a slight restrictioın.

    Also i've tried advance mode in mobo To check if any restrictions No chance (CTRL+F1, ALT+F1)...

    Do any one have an idea?

    GIGABYTE GA-Z68P-DS43 rev.1 (2x PCIE 16 slot, 1= GTX 580 , 2 M.2 Other pci and pcie slots are emty.)
    I5 2500K
    2x4G Corsair ddr3
    1x KINGSPEC 128gb M.2 NVME
    3x various ssd , 2x various drives

    Click image for larger version

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    Last edited by yabay; 01-22-2019, 01:07 PM.

  • #2
    Re: Pcie M.2 NVMe (1100mb/s as storage, 400mb/s in os)

    With my 2X Corsair force LS ssd Raid0 config:

    Clean install Win10:

    Crystal: 995mb/s
    Atto: 1050mb/s
    As Ssd:890mb/s

    Win10 + updates +settings +programmes:

    Crystal:700mb/s
    Atto: 1050mb/s
    As Ssd: 750mb/s


    With my Kingspec M.2 NVMe PCIe:

    Using as a sotrage disk in OS:

    Crystal: 1100mb/s
    Atto:1190mb/s

    When using as from M.2

    Crystal: 352mb/s
    Atto: 401mb/s
    As Ssd: 340mb/s

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    • #3
      Re: Pcie M.2 NVMe (1100mb/s as storage, 400mb/s in os)

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      • #4
        Re: Pcie M.2 NVMe (1100mb/s as storage, 400mb/s in os)

        Ok the problem reveald.

        My second PCI-e 16 X4 slot wants to work at X1 speed. Tried several X4 items, the results remains same.



        This problem comes with upgrade from legacy to uefi... Any one have an idea?

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