Problems with the NEM firmware can cause various symptoms, including but not limited to:
System does not boot and displays an FMA fault:
sunw-msg-id #SPX86--8002--QQID
Partial or no information in sensor data lists, especially in NEM sensors.
To fix these problems, you must update the NEM expander firmware. For details, refer to the Oracle ILOM documentation collection at https://www.oracle.com/goto/ilom/docs.