MS-9826 Mainboard

Slot

PCI (Peripheral Component Interconnect) Slot

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

32-bit PCI Slot

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:

DEVICE

IDSEL

INT A

INTB

INTC

INTD

REQ# / GNT#

32-bit PCI Slot

AD18

E

F

G

H

REQ#0 / GNT#0

Important

When adding or removing expansion cards, make sure that you unplug the power supply first. Meanwhile, read the documentation for the expansion card to configure any necessary hardware or software settings for the expansion card, such as jumpers, switches or BIOS configuration.

2-14

Page 32
Image 32
MSI AM-690E manual PCI Peripheral Component Interconnect Slot, PCI Interrupt Request Routing