1.8.3Interrupt assignments
IRQ | Priority Standard function |
01 System timer
12 Keyboard controller
2–
311 IRQ holder for PCI steering*
412 Communications port (COM1)*
513 IRQ holder for PCI steering*
614 Floppy disk controller
715 Printer port (LPT1)*
83 System CMOS/Real Time Clock
94 IRQ holder for PCI steering*
105 IRQ holder for PCI steering*
116 IRQ holder for PCI steering*
127 IRQ holder for PCI steering*
138 Numeric data processor
149 Primary IDE channel
1510 Secondary IDE channel
*These IRQs are usually available for PCI devices.
IRQ assignments for this motherboard
External devices interrupt
| PIRQ1 | PIRQ2 | PIRQ3 | PIRQ4 | PIRQ5 | PIRQ6 |
PCI slot 1 | shared | shared | shared | shared | — | — |
PCI slot 2 | shared | shared | shared | shared | — | — |
PCI Express x16 slot | — | — | — | — | shared | — |
PCI Express x1 slot | — | — | — | — | — | shared |
Internal devices interrupt
| MCP | MCP | MCP | MCP | MCP | MCP | MCP |
| _USB _MAC _AZA | _IGPU | _IDE | _USB2 | _AHCI | ||
Onboard USB controller | shared | — | — | — | — | — | — |
Onboard USB 2.0 controller | — | — | — | — | — | shared | — |
Onboard USB controller 1 | shared | — | — | — |
| — | — |
Onboard USB 2.0 controller 1 | — | — | — | — | — | shared | — |
Onboard LAN | — | shared | — | — | — | — | — |
Onboard SATA controller | — | — | — | — | — | — | shared |
Onboard HD Audido | — | — | shared | — | — | — | — |
Onboard VGA | — | — | — | shared | — | — | — |
ASUS |