Dell PowerEdge R440 EMC Installation and Service Manual 1 - Page 121
Installing a power supply unit blank, Removing a power supply unit
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Figure 97. Removing a power supply unit blank Next steps Install the second power supply unit blank. Installing a power supply unit blank Prerequisites 1. Follow the safety guidelines listed in Safety instructions. NOTE: Install the power supply unit (PSU) blank only in the second PSU bay. Steps Align the PSU blank with the PSU slot and push it into the PSU slot until it clicks into place. Figure 98. Installing a power supply unit blank Next steps Follow the procedure listed in After working inside your system. Removing a power supply unit Prerequisites CAUTION: The system needs one power supply unit (PSU) for normal operation. On power-redundant systems, remove and replace only one PSU at a time in a system that is powered on. 1. Follow the safety guidelines listed in Safety instructions 2. Disconnect the power cable from the power source and from the PSU you intend to remove, and then remove the cable from the strap on the PSU handle. 3. Unlatch and lift the optional cable management arm if it interferes with the PSU removal. For information about the cable management arm, see the system's rack documentation at www.dell.com/poweredgemanuals. Installing and removing system components 121
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