Asus P4BGV-MX P4BGV-MX User Manual - Page 19

1.9.2 Standard Interrupt Assignments IRQ Standard Function 0 System Timer 1 Keyboard Controller 2 Programmable Interrupt Controller 3 Communications Port (COM2) 4 Communications Port (COM1) 5 IRQ Holder for PCI IRQ Steering 6 Standard Floppy Disk Controller 7 ECP Printer Port (LPT1) 8 System CMOS/Real Time Clock 9 IRQ Holder for PCI IRQ Steering 10 IRQ Holder for PCI IRQ Steering 11 IRQ Holder for PCI IRQ Steering 12 PS/2 Compatible Mouse Port 13 Numeric Data Processor 14 Primary IDE controller (dual fifo) 15 Secondary Ultra ATA Controller (dual fifo) *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 1 - - - - - used - - PCI slot 2 - - - - - - used - PCI slot 3 shared Onboard USB 1.1 controller 1 shared Onboard USB 1.1 controller 2 - - - used - - - - Onboard USB 1.1 controller 3 - - used - - - - - Onboard USB 2.0 controller shared Onboard LAN - shared - - - - - - Onboard Audio - shared - - - - - - Onboard VGA shared When using PCI cards on shared slots, ensure that the drivers support "Share IRQ" or that the cards do not need IRQ assignments. Otherwise, conflicts will arise between two PCI groups. ASUS P4BGV-MX Motherboard 1-9