When PCIe x1_3 & PCIe x1_4 are occupied, PCIe x16 run at x2

You can install PCI Express slots in larger slots but not smaller ones For example, you can install a PCI Express x1 adapter into an x16 slot (but will still

‌PCIe X16 Golden Edge to PCIe X16 Slot Adapter Features : PCIe x16 card edge PCIe x16 slot PCIe Gen 3 16 lanes signals of PCIe designated 4 Layer PCB

pcie 4 gpu in pcie 3 slot Specifications x 1

pcie 4 m2 in pcie 3 slot However, whether you need a PCIe x16 slot depends on usage, such as gaming and graphics-intensive tasks If the motherboard and connected device support the