Pci Interrupt Request Routing - MSI G965MDH Series User Manual

PCI Interrupt Request Routing

The IRQ, acronym of interrupt request line and pronounced I-R-Q, are hardware lines
over which devices can send interrupt signals to the microprocessor. The PCI IRQ
pins are typically connected to the PCI bus pins as follows:
PCI Slot 1
PCI Slot 2
Order 1 Order 2
INT A# INT B#
INT B# INTC#
Hardware Setup
Order 3 Order 4
INT C# INT D#
INT D# INT A#
2-21