What are the top uses of PCIe x1 Slots?

What are the top uses of PCIe x1 Slots? pcie 4 gpu in pcie 3 slot The CPU feeds those and the first slot all at PCIe There are 24 lanes on the CPU and the remaining 4 lanes go to the chipset at PCIe 4 pcie 4 in pcie 3 slot It clearly states its pcie4 for the gpu at x16 so it will be running at pcie4 all but x4 as the 6500xt is limited to that but working at its max

pcie 4 in pcie 3 slot 4 lanes 4 of them are used to connect to the chipset So 20 lanes are available for direct connection 16x goes to PCIe Slot1

pcie slot dimensions PCIe x16: This is the largest PCIe slot with 16 data lanes PCIe x16 slots are associated with graphics cards and provide the highest bandwidth available I used a Thermaltake PCIE riser last night, with GPU #3 in the PCIE3 slot and it worked but at PCIE 3 x4 …instead of x8, but after