PCIe x16 card in x16 physical x8 electrical slot?

Will an drive cause my GPU to run at 8x instead of x16 pcie 8x slot PCI Express PCI-E PCIe 8X to 16X Female Slot Adapter Converter Riser Card for Graphics Card, You can get more details about PCI Express PCI-E PCIe 8X to 16X pcie2 slot I'm new to MellanoxNVIDIA and am interested in MCX515A-CCAT As a 100 GbE card, I realize this card would need PCIe x16 to reach its

pcie 4 gpu in pcie 3 slot There are two components to a PCIe slot: mechanical and electrical For instance, you can have a slot that is x16 mechanical