Asus M4A78T-E User Manual - Page 37

Chapter 2 2.5.3 Interrupt assignments Standard interrupt assignments 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 AMD ACPI-Compliant System 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 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 PCIE x16_1 shared shared shared shared - - - - PCIE x16_2 shared shared shared shared - - - - PCIE x1_1 shared shared shared shared - - - - PCIE x1_2 shared shared shared shared - - - - PCI_1 shared shared shared shared - - - - PCI_2 shared shared shared shared - - - - USB controller 1 - - - shared - - - - USB controller 2 - - - shared - - - - USB controller 3 - - - shared - - - - USB controller 4 - - - shared - - - - USB 2.0 controller - - - shared - - - - HD audio shared - - - - - - - Onboard SATA - - - - shared - - ASUS M4A78T-E 2-17