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Figure 88. Installing a power supply unit
Next steps
1. If you have unlatched or removed the cable management accessory, reinstall or relatch it. For information about the cable
management when the PSU is removed or installed while the system is in the rack, see the system's cable management
accessory documentation at https://www.dell.com/poweredgemanuals.
2. Connect the power cable to the PSU, and plug the cable into a power outlet.
CAUTION:
When connecting the power cable to the PSU, secure the cable to the PSU with the strap.
NOTE:
When installing hot swapping, or hot adding a new PSU, wait for 15 seconds for the system to recognize the
PSU and determine its status. The PSU redundancy may not occur until discovery is complete. The PSU status indicator
turns green to indicate that the PSU is functioning properly.
System memory
System memory guidelines
The PowerEdge XE9640 system supports DDR5 registered DIMMs (RDIMMs). System memory holds the instructions that are
started by the processor.
Installing and removing system components
115
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