118 Installing System ComponentsInstalling the Control-Panel ModuleCAUTION: Many repairs may only be done by a certified service technician.You should only perform troubleshooting and simple repairs as authorized inyour product documentation, or as directed by the online or telephone serviceand support team. Damage due to servicing that is not authorized by Dell is notcovered by your warranty. Read and follow the safety instructions that camewith the product.1 Assemble the power button and power button board in the control-panelmodule.2 Tighten the screw to secure the power button board to the control-panelmodule. See Figure 3-23.3 Connect the control-panel cable to the control-panel module.4 Replace the bracket and tighten the single screw to secure the bracket tothe back of the control-panel module.5 Close the system. See "Closing the System" on page 67.6 Reconnect the system to the power source and turn on the system andattached peripherals.7 If applicable, replace the front bezel. See "Installing the Front Bezel" onpage 66.SAS BackplaneRemoving the SAS BackplaneCAUTION: Many repairs may only be done by a certified service technician.You should only perform troubleshooting and simple repairs as authorized inyour product documentation, or as directed by the online or telephone serviceand support team. Damage due to servicing that is not authorized by Dell is notcovered by your warranty. Read and follow the safety instructions that camewith the product.1 If applicable, remove the optional bezel. See "Removing the Front Bezel"on page 65.2 Turn off the system and attached peripherals, and disconnect the systemfrom the electrical outlet.3 Open the system. See "Opening the System" on page 66.