Asus T2-PH2 T2-PH2 User''s Manual for English Edition - 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 14* Primary 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 PCI slot -- -- -- -- -- shared -- -- PCI Express x16 slot shared -- -- -- -- -- -- -- Onboard USB controller 1 -- -- -- -- shared -- -- -- Onboard USB controller 2 -- shared -- -- -- -- -- -- Onboard USB controller 3 -- -- shared -- -- -- -- -- Onboard USB controller 4 -- -- -- shared -- -- -- -- Onboard USB 2.0 controller -- -- -- -- shared -- -- -- Onboard IDE port -- -- shared -- -- -- -- -- Onboard ACʼ 97 Audio shared -- -- -- -- -- -- -- Onboard LAN -- shared -- -- -- -- -- -- Onboard 1394 -- -- -- -- -- shared -- -- 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