Chapter 2, Pci (perpheral component interconnect) slot, Important – MSI 870A Fuzion User Manual

Page 38: Pci interrupt request routng

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Hardware Setup

MS-7660

Chapter 2

Hardware Setup

MS-7660

Chapter 2

PCI (Perpheral Component Interconnect) Slot

The PCI slot supports LAN card, SCSI card, USB card, and other add-on cards that

comply wth PCI specficatons.

32-bt PCI Slot

Important

When addng or removng expanson cards, make sure that you unplug the power sup-

ply first. Meanwhle, read the documentaton for the expanson card to configure any

necessary hardware or software settngs for the expanson card, such as jumpers,

swtches or BIOS configuraton.

PCI Interrupt Request Routng

The IRQ, acronym of nterrupt request lne and pronounced I-R-Q, are hardware lnes

over whch devces can send nterrupt sgnals to the mcroprocessor. The PCI IRQ pns

are typcally connected to the PCI bus pns as follows:

Order1 Order2 Order3 Order4

PCI Slot1

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

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