Explanation/Reference:
Explanation:
Resetting the Service Processor Using Oracle ILOM
If the Oracle ILOM service processor (SP) is hung, Oracle ILOM provides two methods to reset it:
From the Oracle ILOM command-line interface (CLI), type: reset /SP.
From the Oracle ILOM web interface, click Administration > Maintenance > Reset SP.
If the Oracle ILOM SP is hung and you cannot reset it using the Oracle ILOM web interface or the Oracle ILOM CLI command, use the following procedure to reset the SP from the server back panel.
Using a stylus, press the Reset SP pinhole button that is located on the server back panel.
Figure SP Reset Pinhole Button Location

References: https://docs.oracle.com/cd/E37831_01/html/E48558/z40002791433422.html
https://docs.oracle.com/cd/E37831_01/html/E48558/z40002791433048.html