Asus A7S266-VM Motherboard DIY Troubleshooting Guide - Page 19

1.9 Expansion slots The A7S266-VM motherboard has four (4) expansion slots. The following sub-sections describe the slots and the expansion cards that they support. 1.9.1 Configuring an expansion card After physically installing the expansion card, configure the card by adjusting the software settings. 1. Turn on the system and change the necessary BIOS settings, if any. 2. Assign an IRQ to the card. Refer to the tables below. 3. Install the software drivers for the expansion card. 1.9.2 Standard Interrupt Assignments IRQ Standard Function 0 System Timer 1 Keyboard Controller 2 Programmable Interrupt Controller 3* USB Universal Host Controller 4* Communications Port (COM1) 5* Onboard Audio 6 Standard Floppy Disk Controller 7* Printer Port (LPT1) 8 System CMOS/Real Time Clock 9* Onboard LAN 10* USB Universal Host Controller 11* Onboard VGA 12* PS/2 Compatible Mouse Port 13 Numeric Data Processor 14* Ultra ATA Controller 15* Secondary Ultra ATA Controller *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 shared PCI slot 2 - used - - - - - - PCI slot 3 - - used - - - - - PCI slot 4 - - - used - - - - Onboard USB controller HC0 - - - - used - - - Onboard USB controller HC1 used Onboard LAN - - - - - - used - Onboard Audio - - - - - used - - 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 A7S266-VM Motherboard 1-9