HPE ProLiant DL325 Gen10 Plus v2 User Manual page 97

11. If you are installing a power supply in the power supply bay 2, remove the power supply blank.
Retain the blank for future use.
12. Immediately slide the power supply into the bay until it clicks into place.
13. Make sure the -48 V DC power source is off or the PDU breaker is in the off position, and then connect the power cord to the -
48 V DC power source or PDU.
14. Turn on the -48 V power source or switch the PDU breaker to the on position to supply -48 V to the power supply.
Installing a DC power supply 97