Configuring An Expansion Card; Standard Interrupt Assignments; Irq Assignments For This Motherboard - Asus P4S8X User Manual

2.6.2 Configuring an expansion card

After physically installing the expansion card, configure the card by
adjusting the software settings.
1. Turn on the system and change the necessary BIOS settings, if any.
See Chapter 4 for information on BIOS setup.
2. Assign an IRQ to the card. Refer to the tables on the bottom of this
page.
3. Install the software drivers for the expansion card.

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 slot 4
PCI slot 5
PCI slot 6
Onboard USB HC0
Onboard USB HC1
Onboard USB HC2
Onboard USB HC3
AGP
Onboard Audio
Onboard LAN
When using PCI cards on shared slots, ensure that the drivers support
"Share IRQ" or that the cards do not need IRQ assignments.
22
Priority
1
2
N/A
11
12
13
14
15
3
4
5
6
7
8
9
10
A B C
— — —
— shared —
— — shared
— — —
shared — —
— shared —
— — —
— — —
— — —
— — —
— shared —
— — shared
— — —
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
D E F
shared — —
— — —
— — —
shared — —
— — —
— — —
— used —
— — used
— — —
— — —
— — —
— — —
shared — —
Chapter 2: Hardware information
G H
— —
— —
— —
— —
— —
— —
— —
— —
used —
— used
— —
— —
— —