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Asus Maximus III Gene Runs x16 @ Second PCI-E 2.0 x16 port?

Discussion in 'Motherboards & Memory' started by puma99dk|, Feb 2, 2011.

  1. puma99dk|

    puma99dk|

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    i am wondering if this motherboard will run x16 with a graphic card put in the second pci-express port aka the lowest, bcs i want to use the PCI-E x8 port for a USB3.0 addon card and my MSI N460GTX Hawk uses two slots bcs of it's cooler, so does it do x16 in both PCI-Express 2.0 x16 ports when only one card is in?


    [​IMG]

    Asus Maximus III Gene


    it's the lowerest red PCI-Express 2.0 x16 port i am thinking about ^^; (if anyone don't get what i mean.)
  2. cadaveca

    cadaveca My name is Dave

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    NO, it only runs @ 8x. jsut swapped my card in there to verify.
    [​IMG]
  3. The Von Matrices

    The Von Matrices

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    The difference in performance between PCIe 2.0 x16 and PCIe 2.0 x8 is minimal (~1%) at worst. If you need to use the lower slot to fit a USB 3.0 card, I would do it and not worry about the performance impact.
  4. puma99dk|

    puma99dk|

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    Arigatou gozaimasu for the testing cadaveca, that just means that i need to find another way to get USB3.0 than from PCI-E x1 card i don't want my GFX to run @ x8 when it's not in SLi :D
  5. brandonwh64

    brandonwh64 Addicted to Bacon and StarCrunches!!!

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    I think thats the limitation with the P55 PCIex slots correct? i know i have the X58 rampage II gene and its full 16x16
    Crunching for Team TPU
  6. freaksavior

    freaksavior To infinity ... and beyond!

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    ^ I know my evga x58 mini atx is 16/16
  7. puma99dk|

    puma99dk|

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    no LGA1366 / X58 here only LGA1156 / P55 it uses eletronic x16 @ Single and x8 @ dual but still it would be nice if it was x16 even in the lowest port when there is only one card in it.
  8. Voltage_Drop

    Voltage_Drop New Member

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    The 1156 boards are indeed limited to [x8x8] or [x16x4] depending on mobo. though as another poster stated, that the difference is minimal and wouldnt be noticed

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