Asus MES Manuel d'utilisateur télécharger pdf (Page 19)

ASUS MES-VM User’s Manual 19

III. HARDWARE SETUP

Expansion Cards

III. H/W SETUP

4. Expansion Cards

WARNING! Make sure that you unplug your power supply when adding or

removing expansion cards or other system components. Failure to do so may

cause severe damage to both your motherboard and expansion cards.

Expansion Card Installation Procedure

1. Read the documentation for your expansion card and make any necessary hard-

ware or software settings for your expansion card, such as jumpers.

2. Remove your computer system’s cover and the bracket plate on the slot you

intend to use. Keep the bracket for possible future use.

3. Carefully align the card’s connectors and press firmly.

4. Secure the card on the slot with the screw you removed above.

5. Replace the computer system’s cover.

6. Set up the BIOS if necessary

(such as IRQ xx Used By ISA: Yes in PNP AND PCI SETUP)

7. Install the necessary software drivers for your expansion card.

Assigning IRQs for Expansion Cards

Some expansion cards need to use an IRQ to operate. Generally, an IRQ must be

exclusively assigned to one use. In a standard design, there are 16 IRQs available

but most of them are already in use, leaving 6 IRQs free for expansion cards. If your

motherboard has PCI audio onboard, an extra IRQ will be used, leaving 5 IRQs

free. If your motherboard has ISA audio onboard, an extra 3 IRQs will be used,

leaving 3 IRQs free.

Both ISA and PCI expansion cards may require to use IRQs. System IRQs are avail-

able to cards installed in the ISA expansion bus first, then any remaining IRQs are

available to PCI cards. Currently, there are two types of ISA cards. The original ISA

expansion card design, now referred to as legacy ISA cards, requires that you con-

figure the card’s jumpers manually and then install it in any available slot on the ISA

bus. You may use the Microsoft Diagnostics (MSD.EXE) utility located in the Win-

dows directory to see a map of your used and free IRQs. If you use Windows 95, the

Resources tab under Device Manager displays the resource settings being used by

a particular device (to gain access, double-click the System icon under the Control

Panel program). Ensure that no two devices share the same IRQs or your computer

will experience problems when those two devices are in use at the same time.

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Asus MES Manuel d'utilisateur Page 19