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2.5.3Interrupt assignments
IRQ
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Priority
1
2
–
11
12
13
14
15
3
4
5
6
7
8
9
10
Standard function System timer Keyboard controller
IRQ holder for PCI steering* Communications port (COM1)* IRQ holder for PCI steering* Floppy disk controller Printer port (LPT1)*
System CMOS/Real Time Clock IRQ holder for PCI steering* IRQ holder for PCI steering* IRQ holder for PCI steering* PS/2 compatible mouse port* Numeric data processor Primary IDE channel Secondary IDE channel
* These IRQs are usually available for PCI devices.
IRQ assignments for this motherboard
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| A | B | C | D | E | F | G | H |
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| PCI slot 1 | – | – | – | – | – | shared | – | – |
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| PCI slot 2 | – | – | – | – | – | – | shared | – |
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| PCI slot 3 | – | – | – | – | – | – | – | shared |
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| PCI slot 4 | – | – | – | – | shared | – | – | – |
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| LAN (8001) | – | – | – | shared | – | – | – | – |
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| SATA (363) | shared | – | – | – | – | – | – | – |
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| LAN (8056) | – | shared | – | – | – | – | – | – |
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| PCIE x16_1 | shared | – | – | – | – | – | – | – |
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| PCIE x16_2 | shared | – | – | – | – | – | – | – |
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| USB controller 1 | – | – | – | – | – | – | – | shared |
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| USB controller 2 | – | – | – | shared | – | – | – | – |
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| USB controller 3 | – | – | shared | – | – | – | – | – |
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| USB controller 4 | shared | – | – | – | – | – | – | – |
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| USB controller 5 | – | shared | – | – | – | – | – | – |
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| USB 2.0 controller 1 | – | – | – | – | – | – | – | shared |
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| USB 2.0 controller 2 | – | – | shared | – | – | – | – | – |
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| SATA controller 1 | – | – | shared | – | – | – | – | – |
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| SATA controller 2 | – | shared | – | – | – | – | – | – |
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| Azalia | – | – | – | – | – | – | shared | – |
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| ASUS Commando |
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