Pci Interrupt Request Routing - VIA Technologies P4PB ULTRA-URL User Manual

PCI Interrupt Request Routing

IRQ allows devices to send interrupt signals to the microprocessor. The PCI
IRQ pins are typically connected to the PCI bus INT A# ~ INT D# pins as
follows:
PCI Slot 1
PCI Slot 2
PCI Slot 3
PCI Slot 4
PCI Slot 5
PCI Slot 6
Order 1 Order 2
INT A# INT B#
INT B# INT C#
INT C# INT D#
INT D# INT A#
INT A# INT B#
INT B#
INT C#
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Installation
Order 3 Order 4
INT C# INT D#
INT D# INT A#
INT A# INT B#
INT B# INT C#
INT C# INT D#
INT D#
INT A#