Power Off the Host Using the On/Standby Button

For dual 4-socket systems, you can complete this action for both servers.

1. Locate the On/Standby button for the corresponding server on the system front panel.

   The front panel includes buttons for System A and System B. System B is only active on dual 4-socket systems.

2. Press the On/Standby button.

   • To perform a graceful shutdown, press and release the Power button.

     ACPI-enabled operating systems perform an orderly shutdown. Operating systems that are not ACPI-enabled might ignore this event and fail to shut down the host.

     The System OK indicator blinks. The service processor SP OK indicator is steady on. The server goes into Standby power mode.

   • To perform an immediate shutdown, press and hold the On/Standby button for at least 5 seconds.

     The System OK indicator blinks. The service processor SP OK indicator is steady on. The server goes to Standby power mode.

     Caution:

     Data loss. An immediate shutdown abruptly closes all applications and files without saving changes.

   • To completely power off the server, disconnect the four power cords from the back panel of the server.