9.Before installing the expansion card, remove the expansion slot cover in the lower slot. The Powered Serial Port expansion card must be installed in the lower slot.
Figure 2-28 Removing an Expansion Slot Cover
10.Install the Powered Serial Port expansion card into the bottom socket on the riser card. Move the card toward the rear of the chassis so that the bracket on the card is aligned with the open slot on the rear of the chassis (1). Press the card straight down into the expansion socket on the riser card (2).
NOTE: The Powered Serial Port expansion card must be installed in the bottom socket on the riser card. The bottom socket is designed specifically for that card. DO NOT attempt to install any other card in the bottom socket.
