Pci Interrupt Request Routing - MSI MS-6545 User Manual

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 as
follows:
Order 1
PCI Slot 1 INT C#
PCI Slot 2 INT F#
PCI Slot 3 INT G#
PCI Slot 4 INT A#
Order 2 Order 3
INT F# INT G#
INT G# INT A#
INT A# INT C#
INT C# INT F#
2-31
Hardware Setup
Order 4
INT A#
INT C#
INT F#
INT G#