Interrupt Assignments - Asus P4S800D-E Deluxe User Manual

2.5.3 Interrupt assignments

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.
IRQ assignments for this motherboard
PCI slot 1
PCI slot 2
PCI slot 3
PCI slot 4
PCI slot 5
WiFi slot
AGP slot
Onboard USB 1.1/2.0 controller —
Onboard LAN
Onboard RAID
Onboard 1394
Onboard Audio
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.
2-16
Priority
1
2
N/A
11
12
13
14
15
3
4
5
6
7
8
9
10
A B
shared —
— shared
— —
— —
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
— — —
— — —
shared — —
— shared —
— — —
— — —
— — —
— — used
— shared —
shared — —
— — —
shared — —
Chapter 2: Hardware information
F G H
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used used used
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