Move your video card to pci-e x16 slot 1.
It's currently not operating in x16 mode, and you're trying to shove about x10 worth of bandwidth over the link.
Move your video card to pci-e x16 slot 1.
It's currently not operating in x16 mode, and you're trying to shove about x10 worth of bandwidth over the link.
The one closer to the cpu is actually slot 1, not slot 4.