As soon as you connect the power cords, Standby power is applied. In Standby power mode:
The System OK LED on the server front panel blinks slowly.
The SP OK LED indicator is steady on.
The AC Power Supply indicator lights are steady on.
Depending on the firmware configuration, the system might boot. If it does not boot, perform the following procedure.
-> start /System
When the server is powered on to Main power mode and the power-on self-test (POST) code checkpoint tests are complete, the green System OK LED status indicator on the front panel of the server lights and remains lit.