Advantech IPPC-5211WS Series User Manual page 71

C.2.2.7 Thermal Configuration

Critical Trip Point
This value controls the temperature of the ACPI critical Trip Point in which the
OS will shut the system off.

Passive Trip Point
This value controls the temperature of the ACPI critical Trip Point - the point in
which OS will begin throttling the processor.
63 IPPC-5211WS Series User Manual