Asus M2N-SLI - Manual (Page 100)

- Chapter : BIOS setup
The Chassis Q-Fan Profile item becomes user-configurable when you set the
Chassis Q-Fan Control item to [Enabled].
Chassis Q-Fan Profile [Performance]
Allows you to set the appropriate performance level of the chassis Q-Fan. When
set to [Optimal], the chassis fan automatically adjusts depending on the chassis
temperature. Set this item to [Silent] to minimize fan speed for quiet chassis fan
operation, or [Performance] to achieve maximum chassis fan speed. Configuration
options: [Performance] [Optimal] [Silent]
Vcore Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage
The onboard hardware monitor automatically detects the voltage output through
the onboard voltage regulators.
CPU Temperature, M/B Temperature
The onboard hardware monitor automatically detects and displays the motherboard
and CPU temperatures. These items are not user-configurable.
CPU Fan Speed
CHA_FAN1/2/3/4 Speed
PWR_FAN Speed
The onboard hardware monitor automatically detects and displays the CPU,
Chassis, power, and Southbridge chip fan speeds in rotations per minute (RPM).
If any of the fans is not connected to the motherboard, the field shows 0. These