Asus PU-DLS PU-DLS User Manual - Page 38

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 PCIX1 slot (supports ZCR) PCIX2 slot PCIX3 slot PCIX4 slot (riser slot A) PCIX4 slot (riser slot B) PCIX4 slot (riser slot C) PCI1 slot PCI2 slot Onboard 82540 controller Onboard 82544GC controller Onboard SCSI controller Onboard VGA controller Onboard P64H2 controller PCI INTA PIRQB4 PIRQB0 PIRQA4 PIRQA0 PIRQA4 PIRQA5 PIRQA PIRQH PIRQE PIRQA8 PIRQB8 PIRQF PIRQG PCI INTB PIRQB5 PIRQB1 PIRQA5 PIRQA1 PIRQA0 PIRQA3 PIRQB PIRQD - - PIRQB9 - - PCI INTC PIRQB9 PIRQB2 PIRQA6 PIRQA2 PIRQA1 PIRQA1 PIRQC PIRQB - - - - - PCI INTD PIRQB8 PIRQB3 PIRQA7 PIRQA3 PIRQA2 PIRQA2 PIRQD PIRQC - - - - - PIRQA~H are ICH3 interrupt inputs. PIRQAn~Bn are P64H2 PCI A/B interrupt inputs. 2-12 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. Chapter 2: Hardware information