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  1. #1
    New ROGer Array frackzz's Avatar
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    Prime Z370-A: PCI-E runs at x8 instead of x16

    I checked the bios settings and it's in the PCI-E X16_1 slot but running in X8 Native.

    Why is this happening and would there be a performance difference?

    I'm certain it was x16 before. Not sure if it has anything to do with the latest bios version..

  2. #2
    Administrator Array Silent Scone@ASUS's Avatar
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    Hi,

    Would need more information as to what is connected to the system, as it might be due to other devices using the lanes. As to performance, no, in a single card system any performance impact will be minimal.

  3. #3
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    Quote Originally Posted by frackzz View Post
    I checked the bios settings and it's in the PCI-E X16_1 slot but running in X8 Native.

    Why is this happening and would there be a performance difference?

    I'm certain it was x16 before. Not sure if it has anything to do with the latest bios version..
    Can you give us more details on the matter, and your full specification. as this issue can arise for many reasons.

  4. #4
    New ROGer Array frackzz's Avatar
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    Quote Originally Posted by cl-Adrian@asus View Post
    Can you give us more details on the matter, and your full specification. as this issue can arise for many reasons.
    Quote Originally Posted by Silent Scone@ASUS View Post
    Hi,

    Would need more information as to what is connected to the system, as it might be due to other devices using the lanes. As to performance, no, in a single card system any performance impact will be minimal.
    i7 8700K @ 4.9
    Gskill DDR4 3600 Mhz
    Prime Z-370A
    Samsung SSD 850 Evo 500GB

    It was running on X16 before, I'm 100% certain about that.
    I updated the BIOS two weeks ago to the latest version, and today I noticed it's running at X8.
    Idle it's on X8 1.1, and under load X8 3.0.
    Not using any other slots or cards.


  5. #5
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    Quote Originally Posted by frackzz View Post
    i7 8700K @ 4.9
    Gskill DDR4 3600 Mhz
    Prime Z-370A
    Samsung SSD 850 Evo 500GB

    It was running on X16 before, I'm 100% certain about that.
    I updated the BIOS two weeks ago to the latest version, and today I noticed it's running at X8.
    Idle it's on X8 1.1, and under load X8 3.0.
    Not using any other slots or cards.


    Sorry for the delay but can your clear your CMOS and see from there?

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