88 Installing System ComponentsNOTE: When installing, hot-swapping, or hot-adding a new power supply, allowseveral seconds for the system to recognize the power supply and determine itsstatus. The power-supply status indicator turns green to signify that the powersupply is functioning properly (see Figure 1-6).Removing the Power Supply BlankIf you are installing a second power supply, remove the power supply blank inthe bay by pulling outward on the blank.CAUTION: To ensure proper system cooling, the power supply blank must beinstalled in the second power supply bay in a non-redundant configuration.Remove the power supply blank only if you are installing a second power supply.Installing the Power Supply BlankNOTE: Install the power supply blank only in the second power supply bay.To install the power supply blank, align the blank with the power supply bayand insert it into the chassis until it clicks into place.Internal SD ModuleInstalling the Internal SD ModuleCAUTION: Many repairs may only be done by a certified service technician. Youshould only perform troubleshooting and simple repairs as authorized in yourproduct documentation, or as directed by the online or telephone service andsupport team. Damage due to servicing that is not authorized by Dell is not coveredby your warranty. Read and follow the safety instructions that came with theproduct.1 Turn off the system, including any attached peripherals, and disconnectthe system from the electrical outlet.2 Open the system. See "Opening the System."3 Position the module so the tabs on the underside of the tray fit into thehooks on the chassis, then lower the opposite edge of the card into place.See Figure 3-8.
