My PC uses an Abit KR7A-133 motherboard running an Athlon Thoroughbred XP 2400 processor with 1GB of RAM. My motherboard manual says PCI 4 shares an IRQ with the two USB ports, and that PCI 1 shares with the AGP. My Audiophile currently has an IRQ to itself and so I'm not touching it. However, I need the TC Powercore to not share an IRQ. If anyone can explain what to do, I'd really appreciate it.