Asus Rampage IV Formula - Manual (Page 110)

3-32 Chapter 3: BIOS setup
Chapter 3
CPU Fan Min. Duty Cycle(%) [20]
Use the <+> and <-> keys to adjust the minimum CPU fan duty cycle. The values range from 0%
minimum CPU fan duty cycle. The values range from 0% The values range from 0%
to 100%. When the CPU temperature is under 40ºC, the CPU fan will operate at the minimum When the CPU temperature is under 40ºC, the CPU fan will operate at the minimum
duty cycle.
Chassis Q-Fan Control [Enabled]
[Disabled] Disables the Chassis Q-Fan control feature.
[Enabled] Enables the Chassis Q-Fan control feature.
Chassis Fan Speed Low Limit [600 RPM]
This item appears only when you enable the Chassis Q-Fan Control feature and allows you
to disable or set the chassis fan warning speed.
Configuration options: [Ignore] [200 RPM] [300 RPM] [400 RPM] [500 RPM] [600 RPM]
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] Sets to [Turbo] to achieve maximum chassis fan speed.
[Manual] Sets to [Manual] to assign detailed fan speed control parameters.
The following four items appear only when you set Chassis Fan Profile to [Manual].
Chassis Upper Temperature [70]
Use the <+> and <-> keys to adjust the upper limit of the CPU temperature. The values range
from 40ºC to 90ºC.
Chassis Fan Max. Duty Cycle(%) [100]
Use the <+> and <-> keys to adjust the maximum chassis fan duty cycle. The values range
from 60% to 100%. When the chassis temperature reaches the upper limit, the chassis fan will
operate at the maximum duty cycle.
Chassis Lower Temperature [40]
Displays the lower limit of the chassis temperature.
Chassis Fan Min. Duty Cycle(%) [60]
Use the <+> and <-> keys to adjust the minimum chassis fan duty cycle. The values range from
0% to 100%. When the chassis temperature is under 40ºC, the chassis fan will operate at the
minimum duty cycle.