Chapter 3. Installing the Battery Backup Unit32 3ware 9650SE Serial ATA RAID Controller Installation GuideInstallation Instructions1 Remove the screw head from the plastic post on the BBUcontrol module and set it aside (you will reattach it soon.)Figure 24. Removing the head from the plastic post2 Position the BBU control module above the controller and alignthe BBU control module and the controller, making sure to: Mate the connector on the BBU control module with thereceptacle on the controller. Match the plastic post on the BBU with the hole on thecontroller.Figure 25. BBU control module ready to connect to thecontroller