Asus Z97I-PLUS Manual page 96

The following items appear only when you set the CPU Q-Fan Control item to [Auto],
[PWM mode] or [DC mode].
CPU Fan Speed Low Limit [200 RPM]
Allows you to set the low limit warning for CPU Fan speed. Configuration options: [Ignore]
[100 RPM] [200 RPM] [300 RPM] [400 RPM] [500 RPM]
CPU Fan Profile [Standard]
Allows you to set the appropriate performance level of the CPU fan.
[Standard]
[Silent]
[Turbo]
[Manual]
The following four items appear only when you set CPU Fan Profile to [Manual].
Chassis Fan 1/2 Q-Fan Control [DC Mode]
[PWM mode]
[DC mode]
[Disabled]
The following items appear only when you set the Chassis Fan 1/2 Q-Fan Control item to
[PWM mode] or [DC mode].
3-44
Set to make the CPU fan adjust automatically depending on the CPU
temperature.
Set to minimize the fan speed for quiet CPU fan operation.
Set to achieve maximum CPU fan speed.
Set to assign detailed fan speed control parameters.
CPU Upper Temperature [70]
Use the <+> or <-> keys to adjust the upper limit of the CPU temperature.
The values range from 25°C to 75°C.
CPU Fan Max. Duty Cycle(%) [100]
Use the <+> or <-> keys to adjust the maximum CPU fan duty cycle. The
values range from 20% to 100%. When the CPU temperature reaches the
upper limit, the CPU fan operates at the maximum duty cycle.
CPU Middle Temperature [25]
Use the <+> or <-> keys to set the value for CPU Middle Temperature. The
range of the values depends on the CPU installed.
CPU Fan Middle Duty Cycle(%) [20]
Use the <+> or <-> keys to adjust the CPU fan middle duty cycle. The
values range from 20% to 100%. When the CPU temperature reaches the
upper limit, the CPU fan operates at the maximum duty cycle.
CPU Lower Temperature [20]
Use the <+> or <-> keys to adjust the CPU fan's lower temperature. The
values range from 20% to 75%.
CPU Fan Min. Duty Cycle(%) [20]
Use the <+> or <-> keys to adjust the minimum CPU fan duty cycle. The
values range from 20% to 100%. When the CPU temperature is under
40ºC, the CPU fan operates at the minimum duty cycle.
Enables the chassis Q-Fan control in PWM mode for 4-pin chassis fan.
Enables the chassis Q-Fan control in DC mode for 3-pin chassis fan.
Disables the chassis Q-Fan control feature.
Chapter 3: BIOS setup