What good is 2 PCIe x16 slots when only one runs at x16?

hi anyone knows if pci-e gen 2 is enough for an rx 6600? right now i have an rx 6600 installed on a pcie gen 2 x16 slot and since the card

Also I forgot to say before I went to bed last night since it works as it should in the second PCIE x16 slot I would replace the Motherboard

pcie 30 x1 slot Two types of PCIe slot on an Asus H81M-K motherboard Various slots on a computer motherboard, from top to bottom: PCI Express x4; PCI Express x16; PCI Express

pcie slot bracket That was an issue with older, low-end desktop motherboards having firmware hard-coded to only expect video if the x16 slot is populated,