Can I put a PCIE X8 GPU in a PCie X16 slot?

Can I put a PCIE X8 GPU in a PCie X16 slot? pcie 8x slot if the slot is open like that, you should be good to go if it's not open, you could a) use another riser to adapt the x8 to x16, or b) pcie x32 slot It means it's a physical x16 slot and will take any size PCIe card, but it's only wired to x8

pcie x32 slot Number of lines: 8-Lane, compatible with x8 x16 PCIe slots Output: • 2x NGFF 75-pin M-key slot to install an NVMe

pcie 30 x1 slot if the slot is open like that, you should be good to go if it's not open, you could a) use another riser to adapt the x8 to x16, or b) hdx card in PCI-Express x8 card slot Pro Tools HDX & HD Native Systems