On 11 Nov, 2005, at 17:33, Aaron wrote: The two cards are a Sonnet Tempo ATA 133 card and an ixTV card. I know that the former should work under 10.x, if not the latter. But even a card that doesn't work should be seen, shouldn't it? I installed the same card in my GBit G4 and it did not show up in System Profiler either. However, there was an indication that a card of some sort was installed in the #3 slot. It was identified with a cryptic code sequence that I could never get an answer for from anybody that I asked. As long as it worked, I stopped worrying about it and just kept on going. I would attach a drive or two to the card and see if they mount on the desktop. Mine did, and it is a good probability that yours will too.