1. Installing Internal Optional DevicesExpress5800/R120d-2M User’s Guide 51Chapter 2 Preparations1.7 Removing PCI Riser CardYou need to remove PCI riser card when installing or removing the following component or changing internalcable connection:LAN riser card DIMMProcessor (CPU) TPM moduleInternal Flash Memory Additional HDD cagePCI card RAID ControllerBattery for RAID Controller1. Refer to steps 1 to 6 in Chapter 2 (1.3 Overview of Installation and Removal) for preparations.2. Remove the two screws from PCI riser card.3. Lift the PCI riser card, and remove it from the server.