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8 expansion slots, 1 standard interrupt assignments, 2 irq assignments for this motherboard – Asus P4GE-MX User Manual

Page 21: Asus p4ge-mx motherboard 1-11

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ASUS P4GE-MX motherboard

1-11

1.8

Expansion slots

To install and configure an expansion card:

1. Install an expansion card following the instructions that came with the chassis.

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

Chapter 2 for BIOS information.

3. Assign an IRQ to the card. Refer to the tables next page.

4. Install the drivers and/or software applications for the expansion card

according to the card documentation.

1.8.1 Standard interrupt assignments

IRQ

Standard Function

0

System Timer

1

Keyboard Controller

2

Programmable Interrupt Controller

3

Communications Port (COM2)

4

Communications Port (COM1)

5

IRQ Holder for PCI IRQ Steering

6

Standard Floppy Disk Controller

7

ECP Printer Port (LPT1)

8

System CMOS/Real Time Clock

9

IRQ Holder for PCI IRQ Steering

10

IRQ Holder for PCI IRQ Steering

11

IRQ Holder for PCI IRQ Steering

12

PS/2 Compatible Mouse Port

13

Numeric Data Processor

14

Primary IDE controller (dual fifo)

15

Secondary Ultra ATA Controller (dual fifo)

*These IRQs are usually available for ISA or PCI devices.

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.

1.8.2 IRQ assignments for this motherboard

A

B

C

D

E

F

G

H

PCI slot 1

used

PCI slot 2

used

PCI slot 3

shared

Onboard USB 1.1 controller 1shared

Onboard USB 1.1 controller 2 —

used

Onboard USB 1.1 controller 3 —

used

Onboard USB 2.0 controller

shared

Onboard LAN

shared

Onboard Audio

shared

Onboard VGA

shared