JETWAY 845CAR1A User Manual

Contents

JETWAY 845CAR1A User Manual Manual pdf 14 page image

112-5 Expansion CardsWARNING! Turn off your power when adding or removing expansion cards or othersystem components. Failure to do so may cause severe damage to bothyour motherboard and expansion cards.2-5-1 Procedure For Expansion Card Installation1. Read the documentation for your expansion card and make any necessaryhardware or software setting for your expansion card such as jumpers.2. Remove your computer’s cover and the bracket plate on the slot you intend touse.3. Align the card’s connectors and press firmly.4. Secure the card on the slot with the screen you remove above.5. Replace the computer system’s cover.6. Set up the BIOS if necessary.7. Install the necessary software driver for your expansion card.2-5-2 Assigning IRQs For Expansion CardSome expansion cards need an IRQ to operate. Generally, an IRQ must exclusivelyassign to one use. In a standard design, there are 16 IRQs available but most ofthem are already in use.Standard Interrupt AssignmentsIRQ Priority Standard function0 N/A System Timer1 N/A Keyboard Controller2 N/A Programmable Interrupt3 * 8 Communications Port (COM2)4 * 9 Communications Port (COM1)5 * 6 Sound Card (sometimes LPT2)6 * 11 Floppy Disk Controller7 * 7 Printer Port (LPT1)8 N/A System CMOS/Real Time Clock9 * 10 ACPI Mode when enabled10 * 3 IRQ Holder for PCI Steering11 * 2 IRQ Holder for PCI Steering12 * 4 PS/2 Compatible Mouse Port13 N/A Numeric Data Processor14 * 5 Primary IDE Channel15 * 1 Secondary IDE Channel