Asus T2-AH1 T2-AH1 English user manual E2065 - Page 36

Standard interrupt assignments IRQ Standard Function 0 System Timer 1 Keyboard Controller 2 Programmable Interrupt 4 Communications Port (COM1) 6 Floppy Disk Controller 7* Printer Port (LPT1) 8 System CMOS/Real Time Clock 9* ACPI Mode when used 10* IRQ Holder for PCI Steering 11* IRQ Holder for PCI Steering 12* PS/2 Compatible Mouse Port 13 Numeric Data Processor 15* Secondary IDE Channel * These IRQs are usually available for ISA or PCI devices. IRQ assignments for this motherboard USB0 USB1 USB2 USB3 AC '97 Onboard 1394 Onboard LAN Onboard PCIE A B C DE F -- shared -- -- -- -- -- -- shared -- -- -- -- -- -- used -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- used -- -- shared -- -- -- -- -- -- shared -- -- -- G H P used -- used When using a PCI card on shared slots, ensure that the drivers support "Share IRQ" or that the cards do not need IRQ assignments; otherwise, conflicts will arise between the two PCI groups, making the system unstable and the card inoperable. 2-16 Chapter 2: Basic installation