2 configuring an expansion card, 3 interrupt assignments, Configuring an expansion card -16 – Asus RS720-E7/RS12 User Manual
Page 36: Interrupt assignments -16, Standard interrupt assignments
Chapter 2: Hardware setup
2-16
* These IRQs are usually available for ISA or PCI devices.
2.5.3
Interrupt assignments
Standard Interrupt assignments
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.
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 4 for information on BIOS setup.
2. Assign an IRQ to the card. Refer to the tables on the next page.
3. Install the software drivers for the expansion card.
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