Asus PR-DLSW PR-DLSW M/B manual pdf format file - Page 38
Standard Interrupt Assignments, IRQ assignments for this motherboard
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Standard Interrupt Assignments IRQ Priority Standard Function 0 1 System Timer 1 2 Keyboard Controller 2 N/A Programmable Interrupt 3* 11 Communications Port (COM2) 4* 12 Communications Port (COM1) 5* 13 Sound Card (sometimes LPT2) 6 14 Floppy Disk Controller 7* 15 Printer Port (LPT1) 8 3 System CMOS/Real Time Clock 9* 4 ACPI Mode when used 10* 5 IRQ Holder for PCI Steering 11* 6 IRQ Holder for PCI Steering 12* 7 PS/2 Compatible Mouse Port 13 8 Numeric Data Processor 14* 9 Primary IDE Channel 15* 10 Secondary IDE Channel * These IRQs are usually available for ISA or PCI devices. IRQ assignments for this motherboard PCI INTA PCI slot 1 1 PCI slot 2 4 PCI slot 3 5 PCI slot 4 8 PCI slot 5 9 PCI slot 6 10 AGP Pro slot 11 Onboard 82551QM controller 2 Onboard SCSI controller 6 PCI INTB 12 15 18 21 24 27 0 - 7 PCI INTC 13 16 19 22 25 28 - - - PCI INTD 14 17 20 23 26 29 - - - 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 the two PCI groups, making the system unstable and the card inoperable. 2-12 Chapter 2: Hardware information