Asus P5NSLI Motherboard Installation Guide - Page 36

1.8.3 Interrupt assignments Standard interrupt assignments IRQ Priority Standard Function 0 1 1 2 2 ­ - 4 12 5 13 6 14 7 15 8 3 9 4 10 5 11 6 12 7 13 8 14 9 15 10 System Timer Keyboard Controller Re-direct to IRQ#9 Communications Port (COM1)* IRQ holder for PCI steering* Floppy Disk Controller Printer Port (LPT1)* System CMOS/Real Time Clock IRQ holder for PCI steering* IRQ holder for PCI steering* IRQ holder for PCI steering* PS/2 Compatible Mouse Port* Numeric Data Processor Primary IDE Channel 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 PCI Express x16 slot 1 - - - - shared - - - PCI Express x16 slot 2 - - - - - - used - PCI Express x1 slot 1 - - - - shared - - - PCI Express x1 slot 2 - - - - - used - - PCI Express x1 slot 3 - - - - - - - used PCI slot 1 shared - - - - - - - PCI slot 2 - shared - Onboard USB1.0 controller 1 shared - - - - - - - Onboard USB1.0 controller 2 - shared - - - - - - Onboard USB2.0 controller - - shared - - - - - Onboard LAN - - shared Onboard IDE controller - - - - shared - - - Onboard SATA controller shared - - - - - - - Onboard Audio controller shared - - - - - - - 1-22 Chapter 1: Product introduction