PCIE 1x, 4x, 8x, 16x bus pins and signals

The card does not show up in Windows, although the bluetooth is recognized and seems to function When I tried it in the second x16 slot

PCIE 1x, 4x, 8x, 16x bus pins and signals A 1x PCI-E expansion card will fit into a 16x slot The physical size difference will leave the rest of the slot unoccupied, but this is normal This slot

The card does not show up in Windows, although the bluetooth is recognized and seems to function When I tried it in the second x16 slot

pcie slot bracket I have tried several PCIe cards in my x370 Gaming Pro Carbon x1 slots, and I am not able to get either of them to function properly

Looking at the PDF manual the board shows 4 slots, a PCIe x16, 2 PCIe x1, and a PCIe x4, but the key to that diagram indicates that the x4

pcie slot configuration gen1 gen2 gen3 Yes A larger PCI express slot fits all smaller PCI express cards That means you can plug an x1, x2, x4 or x8 card into an x16 slot

The PCIe x1 slot is the smallest PCI Express slot and has the lowest throughput compared to larger PCIe slots such as the PCIe x16 slot