Asus RS500A-X6 PS4 User Guide - Page 31
Configuring an expansion card, Standard Interrupt assignments
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6. Align the riser cage with the expansion card to the PCI Express x16 slot on the motherboard. 7. Press the riser cage until the golden connectors completely fit the slot and the cage aligns with the rear panel. 8. Secure the riser cage with two screws. 2.5.2 Configuring an expansion card After installing the expansion card, configure the it by adjusting the software settings. 1. Turn on the system and change the necessary BIOS settings, if any. See Chapter 5 for information on BIOS setup. 2. Assign an IRQ to the card. Refer to the following tables. 3. Install the software drivers for the expansion card. Standard Interrupt assignments IRQ Priority Standard function 0 1 System Timer 1 2 Keyboard Controller 2 - Programmable Interrupt 3* 11 Communications Port (COM2) 4* 12 Communications Port (COM1) 5* 13 -- 6 14 Floppy Disk Controller 7* 15 -- 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. ASUS RS520-E6/ERS8 2-13