Chapter 3 – Asus M5A99FX PRO R2.0 User Manual
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Chapter 3: BIOS setup
Chapter 3
CPU Fan Speed [xxxx RPM] / [N/A]
Chassis Fan 1/2/3 Speed [xxxx RPM] / [N/A]
CPU Opt Fan Speed [xxxx RPM] / [N/A]
The onboard hardware monitor automatically detects and displays the CPU, chassis, and
CPU optional 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 [Enabled]
[Disabled]
Disables the CPU Q-Fan control feature.
[Enabled]
Enables the CPU Q-Fan control feature.
CPU Fan Profile [Standard]
This item appears only when you enable the CPU Q-Fan Control feature and allows
you to set the appropriate performance level of the CPU fan.
[Standard]
Sets to [Standard] to make the CPU fan automatically adjust
depending on the CPU temperature.
[Silent]
Sets to [Silent] to minimize the fan speed for quiet CPU fan operation.
[Turbo]
Sets to [Turbo] to achieve maximum CPU fan speed.
[Manual]
Sets to [Manual] to assign detailed fan speed control parameters.
The following four items appear only when you set CPU Fan Profile to [Manual].
CPU Upper Temperature [70]
Use the <+> and <-> keys to adjust the upper limit of the CPU temperature. The values
range from 20ºC to 75ºC.
CPU Lower Temperature [20]
Use the <+> and <-> keys to adjust the lower limit of the CPU temperature. The values
range from 20ºC to 75ºC.
CPU Fan Max. Duty Cycle(%) [20]
Use the <+> and <-> 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 will operate at the maximum duty cycle.
CPU Fan Min. Duty Cycle(%) [20]
Set the minimum CPU fan duty cycle when CPU temperature is lower the CPU Lower
Temperature setting.
CPU Fan Speed Low Limit [600 RPM]
This item appears only when you enable the CPU Q-Fan Control feature and allows you to
disable or set the CPU fan warning speed.
Configuration options: [Ignore] [100RPM] [200 RPM] [300 RPM] [400 RPM] [500 RPM] [600
RPM]
Chassis Q-Fan Control [Disabled]
[Disabled]
Disables the Chassis Q-Fan control feature.
[Enabled]
Enables the Chassis Q-Fan control feature.