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Thread: x99 oc formula link band width question




  1. #1
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    Default x99 oc formula link band width question

    I'm running 290's crossfired with a 5960x cpu.
    My pcie band widths are reading one at x16 and one at x8.
    It seems that slot one in running x8
    1 vcard in slot 1 and the other in slot 4
    I thought they were supposed to be x16??
    Is this correct?
    Last edited by OnDborder; 03-01-2015 at 03:49 PM.

  2. #2
    harleyman is offline Junior Member
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    Default Re: x99 oc formula link band width question

    Quote Originally Posted by OnDborder View Post
    I'm running 290's crossfired with a 5960x cpu.
    My pcie band widths are reading one at x16 and one at x8.
    It seems that slot one in running x8
    1 vcard in slot 1 and the other in slot 4
    I thought they were supposed to be x16??
    Is this correct?

    Depends on the board.. What do their specs say they run at ?

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    Default Re: x99 oc formula link band width question

    Asrock OC formula x99

    Asrock x99oc 5960x..........Asrock z77 x6/3770
    GSkills 16gb........................16gigZ Corsair
    Gigabyte 290s crossfire ...........HIS 280x crossfired
    X-Fi titanium Fatal pro.................H2O cooling
    480 crucial/480 samsung..... .......240gig ssd
    Siverstone 1500wt'r.....................Corsair1000HX

    Asrock x99oc 5960x..........Asrock z77 x6/3770
    GSkills 16gb........................16gigZ Corsair
    Gigabyte 290s crossfire ...........HIS 280x crossfired
    X-Fi titanium Fatal pro.................H2O cooling
    480 crucial/480 samsung..... .......240gig ssd
    Siverstone 1500wt'r.....................Corsair1000HX

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    harleyman is offline Junior Member
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    Default Re: x99 oc formula link band width question

    ?

  5. #5
    parsec's Avatar
    parsec is offline Senior Member
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    Default Re: x99 oc formula link band width question

    Quote Originally Posted by OnDborder View Post
    I'm running 290's crossfired with a 5960x cpu.
    My pcie band widths are reading one at x16 and one at x8.
    It seems that slot one in running x8
    1 vcard in slot 1 and the other in slot 4
    I thought they were supposed to be x16??
    Is this correct?
    The number of lanes available for each slot depends on the X99 board and the Haswell E CPU. Since you have an i7-5960X with 40 PCIe 3.0 lanes, the CPU is not a limitation.

    From the specs for your board:

    x99 oc formula link band width question-x99-ocf-slots-png

    A video card in the PCIE1 and PCIE4 slots should be x16 for both cards. What is showing PCIE1 is running at x8? That might be a power saving option kicking in on the card in the PCIE1 slot.

    What BIOS version are you using? Version 1.40 includes a "PCIE card" compatibility update.

    ASRock > X99 OC Formula

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