TMC AI5TV User Manual page 37

Chapter 5 BIOS
PCI IDE IRQ Map To
This field allows you to configure the type of IDE disk controller in
your system. The default setup is ISA. If you are equipped with PCI
controller, you need to specify which slot has the controller and PCI
interrupt is associated with the connected hard drives. Selecting "PCI
AUTO" allows the system to automatically determine your IDE disk
system configuration.
AI5TV Motherboard User's Manual 35