Standard Interrupt Assignments; Irq Assignments For This Motherboard - Asus Barebone System T2-PH2 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 this motherboard

PCI slot
PCI Express x16 slot
Onboard USB controller 1
Onboard USB controller 2
Onboard USB controller 3
Onboard USB controller 4
Onboard USB 2.0 controller
Onboard IDE port
Onboard ACʼ 97 Audio
Onboard LAN
Onboard 1394
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.
2-16
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
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shared ––
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–– shared
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shared ––
–– shared
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C D E
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–– –– ––
–– –– shared
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shared –– ––
–– shared ––
–– –– shared
shared –– ––
–– –– ––
–– –– ––
–– –– ––
Chapter 2: Basic installation
F G H
shared –– ––
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–– –– ––
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shared –– ––