2 configuring an expansion card, Configuring an expansion card -14, Standard interrupt assignments – Asus RS500A-E6/PS4 User Manual
Page 32
Chapter 2: Hardware setup
2-14
2.5.2
Configuring 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
* These IRQs are usually available for ISA or PCI devices.
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
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