Asus P7P55D Premium - Manual (Page 92)

3-28 Chapter 3: BIOS setup
Chapter 3
Chassis Q-Fan Control [Disabled]
[Disabled] Disables the Chassis Q-Fan control feature.
[Enabled] Enables the Chassis Q-Fan control feature.
Chassis Fan Profile [Standard]
This item appears only when you enable the Chassis Q-Fan Control feature and
allows you to set the appropriate performance level of the chassis fan.
[Standard] Sets to [Standard] to make the chassis fan automatically adjust depending
on the chassis temperature.
[Silent] Sets to [Silent] to minimize the fan speed for quiet chassis fan operation.
[Turbo] Set to [Turbo] to achieve maximum chassis fan speed.
CPU Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage
The onboard hardware monitor automatically detects the voltage output through the onboard
voltage regulators. Select Ignored if you do not want to detect this item.