Bizarre issue with fitting the GPU into the PCIe slot

What are the top uses of PCIe x1 Slots? pcie slot for gpu Recently ripped out my second pcie slot on account of my stupidity and my beefy gpu getting stuck in it Pc is working fine tho pcie slot splitter 2 Slot GPU means it takes up the same space as two PCIe slots slots means the card encroach's on the next PCIe slot down usually preventing that slots use

pcie 3 slot All installed GPU adapters must be identical · If a double-wide GPU adapter is installed in slot 5, 7 or 2, the adjacent slot 4, 8, or 1 respectively is not