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