PCI-E x1 Cards not detected in PCI-E x16 Slots on EVGA P55 FTW

Card running x1 in x16 slot? pcie x1 in x16 slot I explain in this video the Types of PCIe slots, how you can identify them, and also what their pcie m2 slot I explain in this video the Types of PCIe slots, how you can identify them, and also what their

pcie x4 in x16 slot Any PCI Express card of a smaller size will fit into a larger slot So an x1 card will fit in an x8 slot Please see the Wikipedia article