Hadders wrote: > My knowledge is that the PCI bus interfaces with the Northbridge chipset > and that chipset then talks to the Main memory, CPU and AGP/PCIe? > So, my hard disks have to share the 133MB/s with the ethernet and any > other PCI devices (like my Audigy), does the USB also run across this > and interface in from the South bridge? > If you run lspci, you will probably see more then one PCI bus. You can also see what shares each bus, and where you have more then one device in the same PCI "slot". (Usually more then one function in the same chip - maybe built into the mother board.) bus:slot.function Mikkel -- Do not meddle in the affairs of dragons, for thou art crunchy and taste good with Ketchup!