Standard Interrupt Assignments - Asus Pundit P3-PH5 User Manual

Standard interrupt assignments

IRQ
0
1
2
4
6
7
8
9
10
11
12
13
14
* These IRQs are usually available for ISA or PCI devices.
IRQ assignments for the system motherboard
PCI Slot 1
PCI Slot 2
PCI Express x16 slot shared
PCI Express x1 slot
USB controller 1
USB controller 2
USB controller 3
USB controller 4
USB 2.0 controller
LAN controller
Audio controller
When using a PCI card 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.
2-1
Standard function
System Timer
Keyboard Controller
Programmable Interrupt
Communications Port (COM1)
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*
A B C
- - -
- - -
- -
- shared -
- - -
- - -
- - shared
shared - -
- - -
- - -
shared - -
D E F
- - used
- - -
- - -
- - -
- - -
shared - -
- - -
- - -
- - -
- shared -
- - -
Chapter 2: Basic installation
G H
- -
used -
- -
- -
- shared
- -
- -
- -
- shared
- -
- -