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Standard interrupt assignments, Irq assignments for this motherboard – Asus RS162-E4/RX4 User Manual

Page 37

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ASUS RS162-E4/RX4

-1

IRQ

Priority

Standard Function

0

1

System Timer

1

2

Kayboard Controller

2

N/A

Progerammable Interrupt

3*

11

Communications Port (COM2) *

4*

12

Communications Port (COM1) *

5*

13

Sound Card (cometimes LPT2)

6

14

Floppy Disk Controller

7*

15

Printer Port (PT1)

8

3

System CMOS/Real time clock

9*

4

ACPI Mode when used

10*

5

IRQ Holder for PCI Steering

11*

6

IRQ Holder for PCI Steering

12*

7

PS/2 Compatible Mouse Port

13

8

Numeric Data Processor

14*

9

Primary IDE Channel

15*

10

Secondary IDE Channel

Standard interrupt assignments

INTA#

INTB#

INTC#

INTD#

REQ#

GNT#

PATA controller

PIRQA#

SATA controller

PIRQD#

SMBus controller

PIRQB#

USB UHCI controller 1

PIRQA

USB UHCI controller 2

PIRQD

USB 2.0 UHCI controller PIRQH
82563EBX1

PIRQB

82563EBX2

PIRQB

ATI Rage XL

PIRQB

REQ1# GNT1#

PCIX Slot1 (64-bit)

PXIRQ0

PXIRQ1

PXIRQ2

PXIRQ3

PXREQ0 PXGNT0

PCI Express Slot 2

PIRQA#

PCIX Slot 2 (64-bit)

PXH_IRQ#0 PXH_IRQ#1 PXH_IRQ#2 PXH_IRQ#3 REQ0# GNT0#

*These IRQs are usually available for expansion cards.

IRQ assignments for this motherboard

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 froups, making the ystem

unstable and the card inoperable.