Asus ROG CG8890 User Manual page 57

Fan Speed
The Fan Speed tab displays the current and threshold rotations (per minute) of the
CPU, chassis, and power fans. When a fan rotation is less than the threshold rotation,
the sensor sends an alert to the user through the monitor panels or via a pop-up
message.
Preference
The Preference tab allows you to enable the pop-up window, set the cycle detection
interval, and select the temperature unit.
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