You won't know for sure until you install it, but there might be an issue. Some Radeon 5000 cards were PCIe 2.1 instead of PCIe 2.0. PCIe 2.1 is known to have compatibility issues with the 1.x versions of PCIe. I think that 1.1 is fine, but I am not sure. I've helped two people in the last month who had compatibility issues caused by PCIe 2.1 cards in old motherboards, let alone how many people in the last year or two, so the best advice that I can give is to give it a try. If it doesn't work, then the card might need to be returned and replaced with a different card.
In gpu z it shows bus interface pcie 1.1 x16@16 1.1, which I had same with my very old 8600gt, but gaming performance is improved compared to my old, so unable to check who much is in real and in nfs 11, I.e hp on ultra settings em getting solid 60fps on 1080p any suggestions I mean is everything working usual??