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A little question about PCI-E lines

post #1 of 2
Thread Starter 
Hi guys.
I have an ASUS Maximus VI Hero motherboard.

I have a GTX 780 Ti GPU in the first PCI-E x16 slot, and a PCI-E soundcard (ASUS Xonar Phoebus) plugged into the third PCI-E x1 slot (the bottom one).

What I was asking to myself, is:
is the soundcard plugged into the PCI-E x1 slot subtracting lines to the x16 slots?

And so on: is the GPU still working in x16 mode, despite the soundcard into the bottom x1 slot?

Thank you.
post #2 of 2
The way you've got your GPU and sound card configured is perfect. The sound card won't be taking PCIe bandwidth away from the GPU so it should be running 16x as expected. thumb.gif You can always check this using something like GPUz.

The way your motherboard is setup is the two red PCIe 16x slots share their bandwidth since they both use the 16 PCIe 3.0 lanes from the CPU. The remaining slots are all PCIe 2.0 and get their bandwidth from the motherboard chipset (Z87 chip) instead. Hope that helps! redface.gif
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