Asus M2V User Manual download pdf (Page 39)

ASUS M2V

2-17

2.5.3 Interrupt assignments

Standard Interrupt Assignments

IRQ Priority Standard Function

0 1 System Timer

1 2 Keyboard Controller

2 N/A Programmable Interrupt

3* 11 IRQ Holder for PCI Steering

4* 12 Communications Port (COM1)

5* 13 Sound Card (sometimes LPT2)

6 14 Floppy Disk Controller

7* 15 Printer Port (LPT1)

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

* These IRQs are usually available for ISA or PCI devices.

IRQ assignments for this motherboard

A B C D E F G H

PCI slot 1 shared — — — — — — —

PCI slot 2 — shared — — — — —

PCI slot 3 — — shared — — — — —

PCI slot 4 — — — shared — — — —

PCI Express x1 — — — — — — — shared

PCI Express x16 — — — — — — — shared

Gigabit LAN — — — — — — — shared

Marvell 6121 SATA — — — — — — — shared

SATA — shared — — — — — —

USB1 shared — — — — — — —

USB2 — shared — — — — — —

USB3 — — shared — — — — —

USB4 — — — shared — — — —

HD audio — shared — — — — — —

When using PCI cards on shared slots, ensure that the drivers

support “Share IRQ” or that the cards do not need IRQ assignments.

Otherwise, conicts will arise between the two PCI groups, making the

system unstable and the card inoperable.

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Asus M2V User Manual Page 39