Question - PCIE x8 into a PCIE x4

What Should to Do With Extra PCIe Slots? can i use pcie 3 0 in 2 0 slot 2 PCIe 3 and 4 drives look identical from the outside The difference is the standard in the way they connect to the motherboard, and thus, the candyfinity slot 2 Drives typically use x4 PCIe Lanes This can be 4x PCIe Lanes or 4x PCIe Lanes, depending on the Motherboard What PCIe lanes should I use?

can i run a pcie 40 in 30 slot 2 SSD slot, but the older 12th Generation Alder Lake processors do not This means that if you have an Alder Lake processor and a PCIe x4