After you replace the bracket, you need to connect the cables to the hard disk drive. Follow these steps:
1.Locate one of the IDE device cables that are connected to the IDE interfaces on the system board. They are flat cables with a system board connector on one end and two IDE device connectors on the other end. A red wire runs down one side of the cable. (See “Locating System Board Components” in Chapter 4 to find the primary and secondary IDE interfaces on the system board.)
Use the primary IDE interface for your boot drive and your second hard disk drive; use the secondary IDE interface to connect IDE
Installing and Removing Slimline Drives