Pci Interrupt Request Routing - MSI K7N2GM-V Instruction Manual

documentation for the expansion card to make any necessary hardware or software settings for
the expansion card, such as jumpers, switches or BIOS configuration.

PCI Interrupt Request Routing

The IRQ, abbreviation 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 INT A# ~ INT D# pins as follows:
Order1
PCI Slot 1 INT C#
PCI Slot 2 INT D#
PCI Slot 3 INT A#
Order2 Order3
INT D# INT A#
INT A# INT B#
INT B# INT C#
Order4
INT C#
INT B#
INT D#
9