>Diane, > >The PSC is a single channel Ultra/Wide 40MBps SCSI card. I haven't followed >this thread closely. Is your problem that the G4 won't boot with the card >installed? Or is it something else? Nope, you got it. Won't boot at all, screen won't even register that it's connected Maybe I'm confused on dual channel, that doesn't mean one internal, one external channel? Diane