User`s manual

Chapter 2
32
PCI Interrupt Request Routing
The IRQ (interrupt request line) are hardware lines over which devices can
send interrupt signals to the microprocessor. The “PCI & LAN” IRQ pins are
typically connected to the PCI bus INT A# ~ INT D# pins as follows:
Order 1 Order 2 Order 3 Order 4
PCI Slot 1 INT B# INT C# INT D# INT A#
LAN INT B#