Advantech AIMB-286EF User Manual page 63

 CPU Warning Temperature [Disabled]
Use this to set the CPU warning temperature threshold. When the system
reaches the warning temperature, the speaker will beep.
 ACPI Shutdown Temperature [Disabled]
Use this to set the ACPI shutdown temperature threshold. When the system
reaches the shutdown temperature, it will be automatically shut down by ACPI
OS to protect the system from overheating damage.
 Console Redirection [Disabled]
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