Thanks all for filling in some of the missing details! I guess people didn't run with these chips for long. Looks like I have a Kansas ROM - $77D.34F5. I always thought that Kansas was the 9600 board, looks like this is just the shorter version. It was a 300 MHz when I inherited it and I swapped it out for the Sonnet G3 500 MHz from my dead 8500. But I could barely tell the difference for most things.

Yes Trag, I am aware that a G4 would be much faster, but since I have "real" G4 systems I thought I would try to learn more about what was out there for native processors. Also I cannot really afford to buy upgrades for this machine now, and guessed that the older CPUs would be available for cheap or free. I wonder if the IBM RS6000 cards would work, but probably not.