[Jahil]

I have noticed that PCI-E cards dont work well in G5’s.
I cannot get the Same Sonnet Card to show up on my G5, but it works flawlessly in a Mac Pro.

This might be because most G5’s are PC-X, with only the last of the series have PCI-E, whereas all Mac Pro’s are PCI native and have a slightly different motherboard. I feel like developers haven’t bothered testing their hardware on the g5, because their eye was on the Mac Pro line.