Asus P6T User Manual download pdf (Page 38)

2-18 Chapter 2: Hardware information

Chapter 2

2.5.3 Interrupt assignments

Standard interrupt assignments

* These IRQs are usually available for PCI devices.

IRQ Priority Standard function

0 1 System Timer

1 2 Keyboard Controller

2 – Redirect to IRQ#9

4 12 Communications Port (COM1)*

5 13 IRQ Holder for PCI Steering*

6 14 Floppy Disk Controller

7 15 Reserved

8 3 System CMOS/Real Time Clock

9 4 IRQ Holder for PCI Steering*

10 5 IRQ Holder for PCI Steering*

11 6 IRQ Holder for PCI Steering*

12 7 Reserved

13 8 Numeric Data Processor

14 9 Primary IDE Channel

ICH

A B C D E F G H

PCIE1_1 shared – – – – – –

LAN – – shared – – – – –

PCI_1 shared – – – – – – –

PCI_2 – shared – – – – – –

USB controller 1 – – – – – – – shared

USB controller 2 – – – shared – – – –

USB controller 3 – – shared – – – – –

USB controller 4 shared – – – – – – –

USB controller 5 – – – – – shared – –

USB controller 6 – – – shared – – – –

USB 2.0 controller 1 – – – – – – – shared

USB 2.0 controller 2 – – shared – – – – –

SATA controller 1 – – – – shared – – –

SATA controller 2 – – – – shared – – –

Audio Azalia – – – – – – shared –

IRQ assignments for this motherboard

IOH

24 25 26 27 28 29 30 31

PCIE16_1 shared – – – – – – –

PCIE16_2 – – – – – – shared –

PCIE16_3 – – – – shared – – –

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