16If applicable, install the RAID controller card and RAID battery. See "Installing the RAID Controller Card" on page 158 and "Installing the RAID Battery" on page 161.
17Install the expansion card. See "Installing the Expansion Card" on page 156.
18Replace the front cover. See "Installing the Front Cover" on page 139.
19Replace the back cover. See "Installing the Back Cover" on page 141.
20Replace the sled. See "Installing a Sled" on page 134.
Installing System Components