Prepare the power cords by routing them from the power source to the server.
Caution - Do not attach power cables to the power supplies until you have first connect the server to a serial terminal or a terminal emulator (PC or workstation).
Note - The server goes into Standby mode and the ILOM service processor initializes as soon as a power cable connects a power supply to an external power source. System messages might be lost after 60 seconds if a terminal or terminal emulator is not connected to the SER MGT port before power is applied.
Note - ILOM will signal a fault if both power supplies are not cabled at the same time, since that situation will be a nonredundant condition.
AC power source documentation