... Today most all new internal boards (cards) are Plug-and-Play (PnP). ... If the BIOS configures it, you hope that the driver can find out what the BIOS did otherwise you may need to tell it this in a configuration file or the like. ... See How Linux Does PnP . ... Once configured as non-PnP devices, they can't be configured by PnP software or a PnP-BIOS (until you move jumpers and/or use the Dos/Windows configuration software again). isapnp is only for PnP devices on the ISA bus (non-PCI). ...