PCIE Gen 4 confusion

You can use any PCI device on newer PCIe slots PCIe slots are compatible with previous generation cards Additional Information While

Q: Can I insert an old PCIe compatible peripheral into a Gen 5 slot? Yes, PCIe 5 slots are backward compatible which means you can insert older-generation

candy 99 slot We recommend a minimum of 8 PCIe Gen 4 lanes per physical x16 slot on the motherboard for a four-GPU build You may use fewer GPUs and populate the empty PCIe

can you put pcie 4x in 16x slot Given your graphics card's specs, the max speed is 14 Gbps, which is well within the reach of what PCIe can handle They also just specify