@DoeBoye
I've tested with other threshold values and guess what:
First I changed the value to 102, during 14 hours I received only one event:
Never experienced a value above 101 before. Plus the case and cpu fans are spinning on max speed. Only a reboot returned the fans to normal speed.
A few hours later, the bmc changed the threshold values, back to the factory defaults, by itself.
I changed the value to 140, resulting....
I fear it's more complicated than just changing the threshold values.