Asus Crosshair II Formula - Republic of Gamers Series Motherboard Specifications download pdf (Page 46)

2-20 Chapter 2: Hardware information

2.5.3 Interrupt assignments

IRQ Priority Standard function

0 1 System Timer

1 2 Keyboard Controller

2 – Redirect to IRQ#9

4 12 Reserved

5 13 IRQ Holder for PCI Steering*

6 14 Floppy Disk Controller

7 15 NVIDIA nForce 780a SLI

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

IRQ assignments for this motherboard

A B C D E F G H

PCIE x16_1 shared shared shared shared – – – –

PCIE x16_2 shared shared shared shared – – – –

PCIE x16_3 shared shared shared shared – – – –

USB 1.0 controller 1 – – – shared – – – –

USB 1.0 controller 2 – – – shared – – – –

USB 1.0 controller 3 – – – shared – – – –

USB 1.0 controller 4 – – – shared – – – –

USB 2.0 controller – – – shared – – – –

HD audio shared – – – – – – –

IEEE 1394 – –

shared

– – – – –

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Asus Crosshair II Formula - Republic of Gamers Series Motherboard Specifications Page 46