MSI MS-6507 Manuel d'instructions télécharger pdf (Page 40)

Chapter 2

2-26

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:

Order 1 Order 2 Order 3 Order 4

PCI Slot 1 INT A# INT B# INT C# INT D#

PCI Slot 2 INT B# INT C# INT D# INT A#

PCI Slot 3 INT C# INT D# INT A# INT B#

1 2 ... 35 36 37 38 39 40 41 42 43 44 45 ... 71 72

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MSI MS-6507 Manuel d'instructions Page 40