MSI MS-7185 Instruction Manual download pdf (Page 30)

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Hardware Setup

PCI Interrupt Request Routing

The IRQ, acronym of interrupt request line and pronounced I-R-Q, are hard-

ware 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 E# INT F# INT G# INT H#

PCI Slot 2 INT F# INT G# INT H# INT E#

PCI Slot 3 INT G# INT H# INT E# INT F#

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MSI MS-7185 Instruction Manual Page 30