1 installing an expansion card, 2 configuring an expansion card, 3 pci express x16 slot – Asus H81I-PLUS User Manual

Page 17: Irq assignments for this motherboard

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ASUS H81I-PLUS

1-9

1.5.1

Installing an expansion card

To install an expansion card:
1.

Before installing the expansion card, read the documentation that came with it and

make the necessary hardware settings for the card.

2.

Remove the system unit cover (if your motherboard is already installed in a chassis).

3.

Remove the bracket opposite the slot that you intend to use. Keep the screw for later

use.

4.

Align the card connector with the slot and press firmly until the card is completely

seated on the slot.

5.

Secure the card to the chassis with the screw you removed earlier.

6.

Replace the system cover.

1.5.2

Configuring an expansion card

After installing the expansion card, configure it by adjusting the software settings.
1.

Turn on the system and change the necessary BIOS settings, if any. See Chapter 2 for

information on BIOS setup.

2.

Assign an IRQ to the card.

3.

Install the software drivers for the expansion card.

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.

1.5.3

PCI Express x16 slot

This motherboard supports two PCI Express x16 graphics cards that comply with the PCI

Express specifications.

IRQ assignments for this motherboard

A

B

C

D

E

F

G

H

PCIe x16

shared

-

-

-

-

-

-

-

Intel SATA Controller

-

-

-

shared

-

-

-

-

Realtek LAN

-

-

shared

-

-

-

-

-

Intel xHCI

-

-

-

-

-

shared

-

-

Intel EHCI 1

-

-

-

-

-

-

-

shared

Intel EHCI 2

-

-

-

-

shared

-

-

-

HD Audio

-

-

-

-

-

-

shared

-

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