4-26 Upgrading Your SystemInstalling a PCI Option Board! CAUTIONEach riser card supports either a low-profile or full-heightPCI boards. Before installing a PCI board, check the type ofPCI board you are installing. When installing a PCI board,confirm that the card connector matches the connector ofthe riser card.1. Observe the safety and ESD precautions listed under General Informationand Static Precautions at the beginning of this chapter.2. Perform the steps in "Preparing Your System for Upgrade" described earlierin this chapter.3. Extend the server out from the rack.4. Remove the top cover of the system chassis. See Top Cover Removal foundearlier in this chapter.! CAUTIONFor proper cooling and airflow, do not operate the systemwith the top cover removed. Always replace the top coverbefore powering on the system.5. Lift straight up and remove the riser card from the server. See Figure 4-24.A BA Riser card slot dedicated to low-profile PCI boardsB Riser card slot dedicated to full-height PCI boardsFigure 4-24. Removing Riser Cards6. Unlock and open the retainer clip. See Figure 4-25.