Asus M4A89TD PRO/USB3 User Manual - Page 86
CPU Q-Fan Mode [Optimal], Chassis Q-Fan Mode [Disabled], Chassis Fan Speed Low Limit [200 RPM],
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CPU Q-Fan Mode [Optimal] [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 [70˚C/158˚F] 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] [70˚C/158˚F] [80˚C/176˚F] [90˚C/194˚F] 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 [20˚C/68˚F] 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 20˚C/68˚F, 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. Chapter 3 3-30 Chapter 3: BIOS setup
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