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Irq assignments for this motherboard – Asus P5N-EM HDMI User Manual

Page 34

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1-22

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, conflicts will

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

inoperable.

Internal devices interrupt

External devices interrupt

See also other documents in the category Asus Motherboard: