Standard Interrupt Assignments; Irq Assignments For This Motherboard - Asus A8N32-SLI - Socket 939 NVIDIA nForce SPP 100 ATX AMD Motherboard Deluxe User Manual

Standard interrupt assignments

I R Q P r i o r i t y
0 1
1 2
2 –
4 1 2
5 1 3
6 1 4
7 1 5
8 3
9 4
1 0 5
1 1 6
1 2 7
1 3 8
1 4 9
1 5 1 0
* These IRQs are usually available for ISA or PCI devices.

IRQ assignments for this motherboard

PCI slot 1
PCI slot 2
PCI slot 3
Onboard USB 1.0 controller
Onboard USB 2.0 controller
Onboard LAN1
Onboard LAN2
Onboard PCI SATA RAID (SI)
Onboard 1394a
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.
ASUS A8N-SLI
Standard Function
System Timer
Keyboard Controller
Re-direct to IRQ#9
Communications Port (COM1)*
IRQ holder for PCI steering*
Floppy Disk Controller
Printer Port (LPT1)*
System CMOS/Real Time Clock
IRQ holder for PCI steering*
IRQ holder for PCI steering*
IRQ holder for PCI steering*
PS/2 Compatible Mouse Port*
Numeric Data Processor
Primary IDE Channel
Secondary IDE Channel
A B C
shared — —
— shared —
— — shared
shared — —
shared — —
shared — —
— shared —
— — —
shared — —
D E F
— — —
— — —
— — —
— — —
— — —
— — —
— — —
shared — —
— — —
G H
— —
— —
— —
— —
— —
— —
— —
— —
— —
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