PCI Slot types

Peripheral Component Interconnect was a common connection interface slot in a computer's motherboard introduced by Intel in 1992

The size of the PCI slot doesn't seem to have a specific description Manuals only describe them as PCI Express x1 slots…but you look for

pcle x1 slot PCI Slot x 3 30423052 B-Key x 1 Mini PCIe Slot x 1 Micro SIM Card Slot x 1

pcle x16 slot If you don't have dedicated IOMMU groups, you can try moving the card to another PCI slot Try plugging the PCI device into a different PCI