Standard Interrupt Assignments; Interrupt Request Table For This Motherboard - Asus A7S333 User Manual

IMPORTANT!
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 inoperative.

Standard Interrupt Assignments

IRQ
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.

Interrupt Request Table for this Motherboard

This table lists the default IRQ assignments fo rthis motherboard.
PCI slot 1
PCI slot 2
PCI slot 3
PCI slot 4
PCI slot 5
Onboard USB controller HC0—
Onboard USB controller HC1—
AGP
Onboard Audio
18
When using PCI cards on shared slots, ensure that the
Priority
1
2
N/A
11
12
13
14
15
3
4
5
6
7
8
9
10
A B
shared —
— shared —
— —
— —
— —
—
—
shared —
— shared —
Standard Function
System Timer
Keyboard Controller
Programmable Interrupt
Communications Port (COM2)
Communications Port (COM1)
Sound Card (sometimes LPT2)
Floppy Disk Controller
Printer Port (LPT1)
System CMOS/Real Time Clock
ACPI Mode when used
IRQ Holder for PCI Steering
IRQ Holder for PCI Steering
PS/2 Compatible Mouse Port
Numeric Data Processor
Primary IDE Channel
Secondary IDE Channel
C D E
— — —
— —
used — —
— shared —
— shared —
— shared —
— — —
— — —
— —
Chapter 2: Hardware information
F G H
— — —
— — —
— — —
— — —
— — —
— — —
— — used
— — —
used — —