PCI-E 8x vs 16x slot speed wise

Hello,

My new computer that I brought within the last six months has a bad PCI-E x16 slot and the only other slot on the board is a PCI-E 8x slot. Will I see a major speed difference between PCI-E X8 vs x16 on a Gefore GTX 770? Is it worth it to RMA the motherboard to Asus or should I just plug the video card into the x8 slot and be done with it?

Specs

AMD FX-8350 @ 4.2 Ghz
32GB Kingston HyperX Beast 2400 Mhz Ram
Asus Crosshair V Formula-Z Motherboard
NVIDIA Gefore GTX 770
CORSAIR AXi series AX1200i 1200W
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More about pci 16x slot speed wise
  1. RMA it. You never know what else is failing or will fail soon.

    To answer the question about the speed difference - it won't be noticeable. But RMA the defect MB anyway. Besides, you spent a ton on the 1200W PSU, and if you don't RMA you won't be able to do SLI, it's a waste.
  2. No, there might not be any major performance difference if u use PCI-E v2.0. It will just have a reduced memory bandwith. So, unless you're using a resolution higher than 1080p or a triple monitor setup, you're fine with it.
  3. No, I see no difference between x8 and x16 using my 7970's..........

    Is this your motherboard?

    http://www.hardocp.com/image.html?image=MTM1MjQxNDQ1MUx5NmpVV0p1UkdfMV8xMV9sLmpwZw==

    Which slot if bad? Seems you have several other to choose from... just wondering how you determined it was the SLOT...
  4. aevm said:
    RMA it. You never know what else is failing or will fail soon.

    To answer the question about the speed difference - it won't be noticeable. But RMA the defect MB anyway. Besides, you spent a ton on the 1200W PSU, and if you don't RMA you won't be able to do SLI, it's a waste.


    I'll keep that in mind and will probably RMA it - Thxs

    Anonymous said:
    No, I see no difference between x8 and x16 using my 7970's..........

    Is this your motherboard?

    http://www.hardocp.com/image.html?image=MTM1MjQxNDQ1MUx5NmpVV0p1UkdfMV8xMV9sLmpwZw==

    Which slot if bad? Seems you have several other to choose from... just wondering how you determined it was the SLOT...


    Hello, the system crashes and loses signal on the first PCI-E slot and doesn't when plugged into the PCI-E slot directly underneath it. This slot however is PCI-E 8x but there is another PCI-E 16x slot on the motherboard but its too close to the PSU to be used.
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