Asus P3PH4 P3-PH4 User''s Manual for English Edition - Page 29

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 the system motherboard PCI slot 1 PCI slot 2 PCI Express x16 slot PCI Express x1 slot1 Onboard USB controller 1 Onboard USB controller 2 Onboard USB controller 3 Onboard USB controller 4 Onboard USB 2.0 controller Onboard LAN controller Onboard Audio controller A B C D E F -- -- shared - - shared -- -- -- shared - -- -- shared - shared - shared shared - -- used G H - used - - - - shared - - - 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. ASUS Pundit P3-PH4 2-13