DIMM device controller supervisor

A dual in-line memory module (DIMM) device, comprising:

• an interface for coupling the DIMM device to a host system;
• and
• a controller in the DIMM, the controller configured to:
• upon power-up, determine a power supply voltage provided to the DIMM;
• in accordance with a determination that power supply criteria are satisfied, the power supply criteria including a requirement that a power supply voltage provided to the DIMM falls within one of N predefined voltage ranges, wherein N is an integer greater than one:
• perform one or more power-up operations, including initiating a usage counter;
• monitor a temperature of the DIMM;
• monitor the DIMM for occurrence of one or more of a set of predetermined trigger events,
• wherein the set of predetermined trigger events is selected from the group consisting of a temperature measurement of the DIMM in excess of a predefined temperature and a current number of program-erase cycles performed on respective flash memory that meets predefined criteria;
• and
• in response to detecting one of the set of predetermined trigger events, log information corresponding to the detected trigger event, wherein the logged information is stored in non-volatile memory in the DIMM.

A non-transitory computer readable storage medium, storing one or more programs for execution by one or more processors of a dual in-line memory module (DIMM) device having one or more controllers, the one or more programs including instructions for:

• upon power-up, determining a power supply voltage provided to the DIMM;
• in accordance with a determination that power supply criteria are satisfied, the power supply criteria including a requirement that a power supply voltage provided to the DIMM falls within one of N predefined voltage ranges, wherein N is an integer greater than one:
• performing one or more power-up operations, including initiating a usage counter;
• monitoring a temperature of the DIMM;
• monitoring the DIMM for occurrence of one or more of a set of predetermined trigger events,
• wherein the set of predetermined trigger events is selected from the group consisting of a temperature measurement of the DIMM in excess of a predefined temperature and a current number of program-erase cycles performed on respective flash memory that meets predefined criteria;
• and
• in response to detecting one of the set of predetermined trigger events, logging information corresponding to the detected trigger event, wherein the logging includes storing the logged information in non-volatile memory in the DIMM.