# [OmniOS-discuss] PCI-e x8 only running x4

Michael Rasmussen mir at miras.org
Tue Jan 24 01:17:32 UTC 2017

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    On Mon, 23 Jan 2017 19:27:51 -0500
    Dale Ghent <daleg at omniti.com> wrote:

    >
    > Check your BIOS settings for the slots, they might be limited there. I also note that this motherboard model has two physical x8 PCIe slots but one of them is wired for 4 lanes only. Is your card in that slot? Something not linking up like this is likely to be more of a hardware configuration issue.
    >
    Doesn't this proof an x8 slot? LnkCap: Port #0, Speed 2.5GT/s, Width x8
    I was aware of that one of the x8 slot was actually a x4 slot so I am
    quite certain I have picked the right one.

    It couldn't be as simple as since there is no disks connected to the
    second channel so the 4 lanes for the second channel is not active?

    > Also keep in mind that the 1068E card is quite old and its driver support in OmniOS/illumos is still the closed-source mpt driver binary, so there is not much room here.
    >
    I am aware of that and an upgrade to a 2x08 is on the todo list.

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