Device Manager > right-click unknown device > Properties > Details > Hardware Ids. Search the string (e.g., PCI\VEN_13F6&DEV_8788 ) on PCI Database (pcidatabase.com) . That will tell you the exact chip.
Device Manager > right-click unknown device > Properties > Details > Hardware Ids. Search the string (e.g., PCI\VEN_13F6&DEV_8788 ) on PCI Database (pcidatabase.com) . That will tell you the exact chip.