MSI P45 NEO3-FR User Manual - Page 35
PCI Interrupt Request Routing
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Hardware Setup 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 PCI Slot 3 PCI Slot 4 Order 1 INT A# INT E# INT F# INT G# Order 2 INT B# INT F# INT G# INT H# Order 3 INT C# INT G# INT H# INT E# Order 4 INT D# INT H# INT E# INT F# 2-21
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2-21
Hardware Setup
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:
Order 1
Order 2
Order 3
Order 4
PCI Slot 1
INT A#
INT B#
INT C#
INT D#
PCI Slot 2
INT E#
INT F#
INT G#
INT H#
PCI Slot 3
INT F#
INT G#
INT H#
INT E#
PCI Slot 4
INT G#
INT H#
INT E#
INT F#