Again: Download TattleTech and run the NuBus/PDS report to find out what you've got. No drivers or chip pulling necessary, it polls the onboard ROM, identifies the CPU a/o determines the class of the card: accelerator, NIC, Graphics card etc.

If you can't find that, download the (freeware) Gauge Utilities and run SlotInfo!

Way too much guessing going on here, no utilities have been employed per long established SOP this kind of thing: :

See: Peripherals: LINKS Project v2