Asus BA5120 User Manual - Page 25

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ASUS BA5120/AS-D672

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.

Standard interrupt assignments

IRQ assignments for this motherboard

A

B

C

D

E

F

G

H

PCI1

shared

–

–

shared

–

–

–

–

PCI2

–

shared

–

–

–

–

–

–

PCI3

–

–

shared

–

–

–

–

–

PCIEX16_1

shared

–

–

–

–

–

–

–

PCIEX1_1

shared

–

–

–

–

–

–

–

PCIEX1_2

–

shared

–

–

–

–

–

–

USB controller 1

–

–

–

–

–

–

–

shared

USB controller 2

–

–

–

shared

–

–

–

–

USB controller 3

–

–

shared

–

–

–

–

–

USB controller 4

shared

–

–

–

–

–

–

–

USB 2.0 controller

–

–

–

–

–

–

–

shared

HD audio

shared

–

–

–

–

–

–

–

LAN

–

–

shared

–

–

–

–

–

IRQ

Priority

Standard function

0

1

System timer

1

2

Keyboard controller

2

–

–

3

11

IRQ holder for PCI steering*

4

12

Communications port (COM1)

5

13

Standard IRQ holder for PCI steering

6

14

Floppy Disk Controller

7

15

Printer Port (LPT1)

8

3

System CMOS/Real Time Clock

9

4

Microsoft ACPI-Compliant System

10

5


11

6


12

7

PS/2 Compatible Mouse Port

13

8

Numeric Data Processor

14

9

Primary IDE Channel

* These IRQs are usually available for PCI devices.

Section	Page
System package contents	9
Chapter 1 System introduction	11
1.1 Welcome!	12
1.2 Front panel	12
1.3 Rear panel	13
1.4 Connecting to other devices	14
Chapter 2 Basic installation	15
2.1 Preparation	16
2.2 Removing the side cover	16
2.3 Before you proceed	17
2.4 Central Processing Unit (CPU)	18
2.4.1 Overview	18
2.4.2 Installing CPU	18
2.4.3 Installing the CPU fan and heatsink assembly	20
2.5 Installing a DIMM	22
2.5.1 Memory configurations	22
2.5.2 Installing a DDR2 DIMM	23
2.5.3 Removing a DDR2 DIMM	23
2.6 Expansion slots	24
2.6.1 Installing an expansion card	24
2.6.2 Configuring an expansion card	24
2.6.3 PCI Express x1 slots	26
2.6.4 PCI slots	26
2.6.5 PCI Express x16 slot	26
2.7 Installing disk drives	27
2.7.1 Installing an optical drive	27
2.7.2 Installing a hard disk drive	28
2.7.3 Installing a floppy disk drive	31
2.8 Re-connecting cables	32
LED cables	32
Chapter 3 Starting up	33
3.1 Installing an operating system	34
3.2 Powering up	34
3.3 Support CD information	35
3.3.1 Running the support CD	35
3.3.2 Drivers menu	36
3.3.3 Utilities menu	37
3.3.4 Manual menu	38
3.3.5 ASUS Contact information	38
3.3.6 Other information	39
3.4 Recovering your system	41
3.4.1 In Windows® XP environment	41

Asus BA5120 User Manual - Page 25

Standard interrupt assignments, IRQ assignments for this motherboard

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