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Thread: p67a-ud3-b3 with u1d UEFI bios: pcie 4x works as 1x




  1. #1
    Join Date
    Jan 2017
    Location
    china
    Posts
    1

    Default p67a-ud3-b3 with u1d UEFI bios: pcie 4x works as 1x

    Hi, everyone.All pcie 1x sockets are empty. And after flashing back to F9 legacy bios, pcie 4x works as 4x. So I am sure U1d bios has a bug on pcie 4x.I try gigabyte offical u1d bios and moded u1d bios on this forum. They have both same problem.I connect to support from gigabyte website, but trouble is not resoved.Anyone can help?

  2. #2
    Join Date
    Feb 2009
    Posts
    75

    Default Re: p67a-ud3-b3 with u1d UEFI bios: pcie 4x works as 1x

    As an idea, someone on the new official GB board was saying their SATA1 didn't work until they moved a PCIE card from 1x slot 2 to 1x slot one. Maybe your problem is resource sharing and the new BIOS remaps which slots use which bandwidth.

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