164 Removing and Installing PartsInstalling the System Board1 Gently align the board into the chassis and slide it toward the back of thecomputer.2 Using the eight screws, secure the system board to the chassis.3 Replace the cables that you removed from the system board.4 Replace the processor and the heat sink assembly (see "Installing theProcessor" on page 150).NOTICE: Ensure that the heat sink assembly is correctly seated and secure.5 Replace the memory modules into the memory sockets at the same locationsfrom which you removed them (see "Installing Memory" on page 113).6 Replace any add-in cards on the system board.7 Replace the computer cover (see "Replacing the Computer Cover" onpage 165).8 Connect your computer and devices to an electrical outlet, and turnthem on.9 Verify that the computer works correctly by running the Dell Diagnostics(see "Dell Diagnostics" on page 84).Replacing the Support BracketCAUTION: Before you begin any of the procedures in this section, follow thesafety instructions located in the Product Information Guide.To replace the support bracket:1 Align and insert the hinges at the bottom of the support bracket into thehinge tabs located along the edge of the computer.2 Pivot the support bracket downward.3 Align the notch in the support bracket with the slot in the hard drive bayand press it down.4 Replace any cable(s) that were attached to the support bracket.5 Ensure that the support bracket is seated correctly and replace the cardretention bracket.
