2.5.2Configuring an expansion card

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

1.Turn on the system and change the necessary BIOS settings, if any. See Chapter 5 for information on BIOS setup.

2.Assign an IRQ to the card. Refer to the following tables.

3.Install the software drivers for the expansion card.

Standard Interrupt assignments

IRQ

Priority

Standard function

0

1

System Timer

1

2

Keyboard Controller

2

-

Programmable Interrupt

3*

11

Communications Port (COM2)

4*

12

Communications Port (COM1)

5*

13

--

6

14

Floppy Disk Controller

7*

15

--

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.

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Chapter 2: Hardware setup