User Guide

3-54
Chapter 3: BIOS Setup
Chapter 3
CPU Fan Middle Duty Cycle(%)
Use the <+> or <-> keys to adjust the CPU fan middle duty cycle. The
values range from 20% to 100%.
CPU Lower Temperature
Use the <+> or <-> keys to adjust the lower limit of the CPU temperature.
The values range from 20°C to 75°C. The CPU fan will operate at the
minimum duty cycle when the CPU temperature is lower than the limit.
CPU Fan Min. Duty Cycle(%)
Use the <+> and <-> keys to adjust the minimum CPU fan duty cycle. The
values range from 20% to 100%. When the CPU temperature is lower than
the lower limit, the CPU fan will operate at the minimum duty cycle.
Chassis Fan 1-2 Q-Fan Control [Auto]
[Disabled] Disable the Chassis Q-Fan control feature.
[Auto] Detect the type of Chassis Q-Fan installed and automatically switches the
mode control.
[DC mode] Enable the Chassis Q-Fan control in DC mode for 3-pin chassis fan.
[PWM mode] Enable the Chassis Q-Fan control in PWM mode for 4-pin chassis fan.
The following items appear only when you set the Chassis Fan 1-2 Q-Fan Control to
[Auto], [PWM Mode], and [DC Mode].
Chassis Fan 1-2 Q-Fan Source [CPU]
The assignment fan will be controlled according to the selected temperature source.
Conguration options: [CPU] [MotherBoard] [PCIEX16_1 Slot] [PCIEX16_3 Slot]
[VRM] [PCH] [T_SENSOR1] [EXT_Sensor1] [EXT_Sensor2] [EXT_Sensor3] [Multiple
Sources]
• For EXT_Sensor1-3, connect a Thermistor cable to the EXT_TS1-3 header then place
the other end to the component to get the temperature.
• For Multiple Sources, select up to three temperature sources and the fan will
automatically change based on the highest temperature.
• ASUS FAN EXTENSION CARD is required to congure these items.
Chassis Fan 1-2 Step Up [0 sec]
This item allows you to set the value of the chassis fan step up.
Conguration options: [0 sec] [12 sec] [25 sec] [51 sec] [76 sec] [102 sec] [127 sec]
[153 sec] [178 sec] [204 sec]
Chassis Fan 1-2 Step Down [0 sec]
This item allows you to set the value of the chassis fan fan step down.
Conguration options: [0 sec] [12 sec] [25 sec] [51 sec] [76 sec] [102 sec] [127 sec]
[153 sec] [178 sec] [204 sec]
Chassis Fan 1-2 Fan Speed Low Limit [200 RPM]
This item allows you to disable or set the chassis fan warning speed.
Conguration options: [Ignore] [200 RPM] [300 RPM] [400 RPM] [500 RPM] [600 RPM]