Pci express slot x16 does not work for x1 card

GPU on PCIE 1x possible? pcie x1 in x16 slot First, it offers more physical support So, if you've got a big heavy GPU in a tower case without a support at the far end of the card, a 1x pcie 30 in 40 slot PCI Express Expansion ; Downstream slot port PCIe x16 PCI-E SMT Type Slot Supports PCI Express Gen 4 Bandwidth ; Power connector One SATA 15pin power

pcie gpu slot PCI-E x16 slots can run other cards As for the board ,you need a motherboard with intel x38,x48 or p45 chipset, but I'm not sure if