Fujitsu D2542 Tehnical Manual page 20

Temperature / system monitoring Features
Sensor monitoring
A fault in a temperature sensor is detected. Should this happen all fans
monitored by this sensor run at maximum speed, to achieve the greatest
possible protection of the hardware.
Voltage monitoring
When voltage exceeds warning level high an alert will be generated.
System Event Log (SEL)
All monitored events of the system board are recorded in the System Event Log.
20 Technical Manual
D2542 (RX100 S5)