This is the only 6509 board I have ever purchased and tried. Prior to that I have always used PCI-DIO-96 boards. The PCI-DIO-96 boards work ok in this industrial controller, along with the PCC-6111 and GPIB cards I mentioned earlier. I have tried the 6509 in several primary PCI slots. The 3.3V LED illuminates always in a primary slot, but the computer will never boot - there are no graphics at all. I have tried it in several secondary PCI slots when there is no 3.3V supply, the computer will always boot but the card is not reconised. I don't have another 6509 board to try. However, I do know that this 6509 board will work in other PC's.
Regards,
David