User guide

1-26 Chapter 1: Product introduction

PIRQ1 PIRQ2 PIRQ3 PIRQ4 PIRQ5 PIRQ6 PIRQ7 PIRQ8

PCI slot 1 shared — — — — — — —

PCI slot 2 — shared — — — — — —

Onboard USB controller — — — — — — — —

Onboard USB 2.0 controller — — — — — — — —

Onboard IDE controller — — — — — — — —

Onboard HD Audio — — — — — — — —

PCI Express x16 slot — — — — — shared — —

PCI Express x1 slot — — — — shared — — —

Onboard SATA controller — — — — — — — —

Onboard LAN — — — — — — — —

Onboard VGA — — — — — — — —

IRQ assignments for this motherboard

MCP

_USB

MCP

_MAC

MCP

_AZA

MCP

_IGPU

MCP

_IDE

MCP

_USB2

MCP

_AHCI

PCI slot 1 — — — — — — —

PCI slot 2 — — — — — — —

Onboard USB controller shared — — — — — —

Onboard USB 2.0 controller — — — — — shared —

Onboard IDE controller — — — — shared — —

Onboard HD Audio — — shared — — — —

PCI Express x16 slot — — — — — — —

PCI Express x1 slot — — — — — — —

Onboard SATA controller — — — — — — shared

Onboard LAN — shared — — — — —

Onboard VGA — — — shared — — —

When using PCI cards on shared slots, ensure that the drivers support “Share

IRQ” or that the cards do not need IRQ assignments. Otherwise, conicts will

arise between the two PCI groups, making the system unstable and the card

inoperable.

Internal devices interrupt

External devices interrupt