PCIe x4 card in a x8 slot

PCIe 8X slot Graphics cards ardForum pcie 8x slot It means that the motherboard has 16 PCIe lanes and two connectors You can either use one connector and it will connect all sixteen pcie x16 expansion slot A PCIe slot that supports a PCIe x8 card also supports a PCIe x4 or x2 card All slots support PCIe cards of up to 75 W The power of a PCIe

pciex16 slot configuration Now, I read somewhere that if you use the top slot, you're giving up 8 PCI lanes shared with the top PCI-E slot So my 4080 would be running