Tool/software: TI-RTOS
Launch pad MCU may randomly go to 85% CPU usage, hit 75*C or more yet may continue to run the application with a temperature fault (unattended). Other launch pads might allow POR but jump to 85% CPU usage slowly climb to 75*C until unplugged from USB power yet run the application. Launch pads like the first one described after cool down will pull down +3v3 LDO and PWRLED won't light. Those MCU have a very low ohmic reading (42ohms) JP2 pulled. Good MCU JP2 pulled has ohmic reading 900ohm-1k.
No body touched the launch pad as it went into melt down. Oddly two MCU that burned out occurred shortly after RTOS kernel had been installed and randomly crashing application. They both were recently flashed back to the basic application when the MCU few days later did the XMAS light burn out thing.