Asus CUSI-FX CUSI-FX User Manual - Page 24
Interrupt Request Table for this Motherboard, Standard Interrupt Assignments - lan driver
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3. HARDWARE SETUP The following table lists the default IRQ assignments for standard PC devices. Use this table when configuring your system and for resolving IRQ conflicts. 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 enabled 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. 3. H/W SETUP Expansion Cards Interrupt Request Table for this Motherboard Interrupt requests are shared as shown by the following table: PCI slot 1 PCI slot 2 Onboard VGA Onboard LAN Onboard USB controller Onboard Audio AMR INT-A shared - shared - - - - INT-B - shared - - - - shared INT-C - - - shared - shared - INT-D - - - - not shared - - IMPORTANT: If using PCI cards on shared slots, make sure that the drivers support "Share IRQ" or that the cards do not need IRQ assignments. Conflicts will arise between the two PCI groups that will make the system unstable or cards inoperable. 24 ASUS CUSI-FX User's Manual