HP ProLiant DL388e Gen8 Server - Manual (Page 80)

Hardware options installation 80
3. Remove the protective cover from the connector pins on the power supply.
WARNING: To reduce the risk of electric shock or damage to the equipment, do not connect the
power cord to the power supply until the power supply is installed.
4. Install the power supply into the bay until it clicks.
5. Connect the power cord to the power supply.
6. Route the power cord through the cable management solution.
7. Connect the power cord to the power source.
Be sure that the power supply LED is green.