Asus Rampage IV Extreme User Manual page 12

Voltage
The Voltage tab displays the system voltages sensors, including the current
and threshold values. When a system voltage is less or more than the threshold
percentage, the sensor sends an alert to the user through the monitor panels, or a
pop-up message.
Temperature
The Temperature tab displays the CPU and motherboard temperature sensors,
including the current and threshold values. When the CPU/MB temperature exceeds
the threshold temperature, the sensor sends an alert to the user through the monitor
panels or a pop-up message.
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