Chapter 3 – Asus M4A89GTD PRO/USB3 User Manual
Page 92
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Chapter 3: BIOS setup
Chapter 3
CPU Q-Fan Mode [Standard]
[Turbo]
Sets to [Turbo] to achieve maximum CPU fan speed.
[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.
[Manual]
Sets to [Manual] to assign detailed fan speed control parameters.
The following four items appear only when you set CPU Q-Fan Mode to [Manual].
CPU Upper Temperature [70ºC/158ºF]
Sets the upper limit of the CPU temperature.
Configuration options: [30�C/86�F] [40�C/104�F] [50�C/122�F] [60�C/140�F]
[30ºC/86ºF] [40ºC/104ºF] [50ºC/122ºF] [60ºC/140ºF]
[40ºC/104ºF] [50ºC/122ºF] [60ºC/140ºF]
[70ºC/158ºF] [80ºC/176ºF] [90ºC/194ºF]
CPU Fan Max. Duty Cycle [100%]
Sets the maximum CPU fan duty cycle. When the CPU temperature reaches the upper
limit, the CPU fan will operate at the maximum duty cycle.
Configuration options: [20%] [30%] [40%] [50%] [60%] [70%] [80%] [90%] [100%]
CPU Lower Temperature [20ºC/68ºF]
Displays the lower limit of the CPU temperature.
CPU Fan Min. Duty Cycle [20%]
Sets the minimum CPU fan duty cycle. When the CPU temperature is under 20ºC/68ºF,
the CPU fan will operate at the minimum duty cycle.
Configuration options: [00%] [10%] [20%] [30%] [40%] [50%] [60%] [70%] [80%] [90%]
[100%]
Chassis Q-Fan Mode [Disabled]
[Disabled]
Disables the Chassis Q-Fan control feature.
[Enabled]
Enables the Chassis Q-Fan control feature.
The following item appears only when you set Chassis Q-Fan Mode to [Enabled].
Chassis Fan Speed Low Limit [200 RPM]
A warning message will appear to remind you that the chassis fan speed is lower than the
selected value.
Configuration options: [500RPM] [400RPM] [300RPM] [200RPM] [100RPM] [Ignored]
Chassis Q-Fan Mode [Silent]
[Turbo]
Sets to [Turbo] to achieve maximum chassis fan speed.
[Standard]
Sets to [Standard] to make the chassis fan automatically adjust depending
on the chassis temperature.
[Silent]
Sets to [Silent] to minimize fan speed for quiet chassis fan operation.
[Manual]
Sets to [Manual] to assign detailed fan speed control parameters.