Asus P5LD2 SE - Manual (Page 94)

4-34 Chapter 4: BIOS setup
CPU Fan Speed (RPM) [xxxxRPM] or [N/A]
The onboard hardware monitor automatically detects and displays the CPU
fan speed in rotations per minute (RPM). If the fan is not connected to the
motherboard, the field shows N/A.
CPU Q-Fan Control [Disabled]
Allows you to enable or disable the ASUS Q-Fan feature that smartly
adjusts the fan speeds for more efficient system operation. Configuration
options: [Disabled] [Enabled]
CPU Fan Profile Mode [Optimal]
Allows you to set the appropriate CPU fan performance level.
When set to [Optimal], the CPU fan speed automatically adjusts
depending on the CPU temperature. Set this item to [Silent Mode]
for silent CPU fan operation or [Performance Mode] to achieve the
maximum CPU fan speed.
Configuration options: [Optimal] [Silent Mode] [Performance Mode]
Chassis Fan1 Speed (RPM) [xxxxRPM] or [N/A]
The onboard hardware monitor automatically detects and displays the
chassis fan speed in rotations per minute (RPM). If the fan is not connected
to the chassis, the specific field shows N/A.
Chassis Q-Fan1 control [Disabled]
Allows you to enable or disable the ASUS Q-Fan feature that smartly
adjusts the chassis fan speeds for more efficient system operation.
Configuration options: [Disabled] [Enabled]
Power Fan Speed (RPM) [xxxxRPM] or [N/A]
The onboard hardware monitor automatically detects and displays the
power fan speed in rotations per minute (RPM). If the fan is not connected
to the power fan connector, the specific field shows N/A.
VCORE Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage
The onboard hardware monitor automatically detects the voltage output
through the onboard voltage regulators.
The CPU Fan Profile Mode item appears when you enable the CPU Q-Fan
Control feature.