16 CUSL-L User’s Manual3. HARDWARE SETUPExpansion Cards3. H/W SETUPCUSL-L PCI Extension CardCUSL-L3.6 Expansion CardsWARNING! Unplug your power supply when adding or removing expansioncards or other system components. Failure to do so may cause severe damage toboth your motherboard and expansion cards (see 3.3 Hardware Setup Proce-dure for more information).3.6.1 PCI Expansion Card Installation Procedure1. 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 youintend 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 necessary7. Install the necessary software drivers for your expansion card.3.6.2 PCI Extension Card Golden FingerThis motherboard features a plug-in extension “golden finger” configured to sup-port two PCI slots. An extension board plugs into the built-in golden finger on theedge of the motherboard. The golden finger only supports one PCI extension board;do not attempt to use other extenders or cards of any kind on the golden finger.