1.10 Expansion slots

The motherboard has five PCI slots and one Accelerated Graphics Port (AGP) slot.

To install and configure an expansion card:

1.Install an expansion card following the instructions that came with the chassis. NOTE: The AGP slot supports only 1.5V and 0.8V AGP cards.

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 below.

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

1.10.1Standard interrupt assignments

IRQ

Priority

Standard Function

0

1

System Timer

1

2

Keyboard Controller

2

N/A

Programmable Interrupt

3*

11

Communications Port (COM2)

4*

12

Communications Port (COM1)

5*

13

Sound card (sometimes LPT2)

6

14

Floppy Disk Controller

7*

15

Printer Port (LPT1)

8

3

System CMOS/Real Time Clock

9*

4

ACPI Mode when used

10*

5

IRQ Holder for PCI Steering

11*

6

IRQ Holder for PCI Steering

12*

7

PS/2 Compatible Mouse Port

13

8

Numeric Data Processor

14*

9

Primary IDE Channel

15*

10

Secondary IDE Channel

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

1.10.2 IRQ assignments for this motherboard

 

A

B

C

D

PCI slot 1

—

shared

—

—

PCI slot 2

—

—

shared

—

PCI slot 3

—

—

—

used

PCI slot 4

shared

—

—

—

PCI slot 5

—

shared

—

—

AGP slot

shared

—

—

—

Onboard USB controller HC0

shared

—

—

—

Onboard USB controller HC1

shared

—

—

—

Onboard USB controller HC2

—

shared

—

—

Onboard USB controller HC3

—

shared

—

—

Onboard USB 2.0 controller

—

—

shared

—

Onboard LAN

shared

—

—

—

Onboard audio

—

—

shared

—

1-14

Chapter 1: Product introduction