Pci-e 1.0 card is compatible with Pci-e 2.0 slot. However, pci-e 2.0 card NOT backwards compatible with pci-e 1.0 slot. As strange as it is, there some mobos with exceptions, depending on the chipset. But one thing is for sure. That mobo has an OLD nvidia chipset that is definitely NOT compatible with a pci-e 2.0 card.