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2.5.6
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 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
0
1
2
3*
4*
5*
6
7*
8
9*
10*
11*
12*
13
14*
15*
* These IRQs are usually available for ISA or PCI devices.
2-26
1
System Timer
2
Keyboard Controller
-
Programmable Interrupt
11
Communications Port (COM2)
12
Communications Port (COM1)
13
--
14
Floppy Disk Controller
15
--
3
System CMOS/Real Time Clock
4
ACPI Mode when used
5
IRQ Holder for PCI Steering
6
IRQ Holder for PCI Steering
7
PS/2 Compatible Mouse Port
8
Numeric Data Processor
9
Primary IDE Channel
10
Secondary IDE Channel
Standard function
Chapter 2: Hardware Information
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