Standard Interrupt Assignments; Irq Assignments For This Motherboard - Asus PCH-DL User Manual

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-X slot 1
PCI-X slot 2
AGP Pro/8X slot
Onbd. USB controller #1
Onbd. USB controller #2
Onbd. USB controller #3
Onbd. USB controller #4
Onbd. USB 2.0 controller
Onbd. LAN controller (Intel 82547GI)
Onbd. RAID controller (Promise 20378)
Onbd. IDE controller
Onbd. SATA controller (6300ESB ICH)
Onbd. 1394 controller (TSB43AB22A)
Onbd. audio controller (AD1980)
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 PCH-DL motherboard
Priority
1
2
N/A
11
12
13
14
15
3
4
5
6
7
8
9
10
IRQ_F#
IRQ_G#
IRQ_H#
PI_IRQ0# PI_IRQ1# PI_IRQ2# PI_IRQ3#
PI_IRQ1# PI_IRQ2# PI_IRQ3# PI_IRQ0#
IRQ_A#
IRQ_A#
IRQ_D#
IRQ_C#
IRQ_A#
IRQ_H#
IRQ_F#
IRQ_H#
IRQ_C#
IRQ_C#
IRQ_E#
IRQ_B#
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
INTA# INTB#
IRQ_G#
IRQ_H#
IRQ_E#
IRQ_B#
—
—
—
—
—
—
—
—
—
—
INTC# INTD#
IRQ_H# IRQ_E#
IRQ_E# IRQ_F#
IRQ_F# IRQ_G#
— —
— —
— —
— —
— —
— —
— —
— —
— —
— —
— —
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