Can you use an RTX 3060 which has PCI on a motherboard that

The card cannot use more lanes that electrically offered by the mobo slot No, a 16-lane PCIe card will not work at full speed in an 8 lane

So while AM5 can support PCIe throughout, the reality is that we're still going to see a lot of PCIe in use even in higher-end

candy crush slot Should you use PCie Gen 5 NVMe as a boot drive? Will Windows work

cannon cove slot Yes 8x = 16x Its not stated in motherboard manuals because it isn't a motherboard limitation, the limitation is on the CPU You need