Pcie Lanes Connectx-3 NIC question

That would be the only slot that would support PCIE 4 Maybe you need to do something in the Bios? Looking at your Crystal score, it is only

Pre-X570 boards will not support PCIe Gen 4 There's no guarantee that older motherboards can reliably run the more stringent signaling

candyland slot All 11th gen and 12th gen and accordingly 500600 series mainboard support PCIE , it's nothing special and not rare Also most GPUs don't

can slot machines be rigged According to the spec sheet it does supports PCie 1 x PCIe x16 slot Source: Link above