Standard Interrupt Assignments; Interrupt Request Table For This Motherboard - Asus A7V-VM User Manual

2. HARDWARE SETUP
The following table lists the default IRQ assignments for standard PC devices. Use
this table when configuring your system and for resolving IRQ conflicts.

Standard Interrupt Assignments

IRQ Priority
0 1
1 2
2 N/A
3* 11
4* 12
5* 13
6 14
7* 15
8 3
9* 4
10* 5
11* 6
12* 7
13 8
14* 9
15* 10
*These IRQs are usually available for ISA or PCI devices.

Interrupt Request Table for this Motherboard

Interrupt requests are shared as shown by the following table:
PCI slot 1
PCI slot 2
PCI slot 3
AGP slot
Onboard LAN controller
Onboard Audio/AMR — —
IMPORTANT:
If using PCI cards on shared slots, make sure that the drivers
support "Share IRQ" or that the cards do not need IRQ assignments. Conflicts
will arise between the two PCI groups that will make the system unstable or
cards inoperable.
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 enabled
LAN Controller
IRQ Holder for PCI Steering
PS/2 Compatible Mouse Port
Numeric Data Processor
Primary IDE Channel
Secondary IDE Channel
INT-A
shared
—
—
shared
—
not shared —
ASUS A7V-VM User's Manual
INT-B INT-C
— —
shared —
— not shared
— —
shared —
INT-D
—
—
—
—
—
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