Asus TUF Z270 MARK 1 Bios Manual page 52

Chassis Fan(s) Configuration
Chassis Fan 1-5 Q-Fan Control
This item allows you to set the chassis fan operating mode.
[Auto]
[PWM Mode]
[DC Mode]
[Disabled]
Chassis Fan 1-5 Q-Fan Source
The assignment fan will be controlled according to the selected temperature source.
Configuration options: [CPU] [MotherBoard] [PCH Core] [VCORE] [VCORE(BACK)]
[DRAM] [PCH] [USB3.1] [PCIE-1] [PCIE-2] [T_SENSOR1] [T_SENSOR2] [T_
SENSOR3] [EXT_Sensor1] [EXT_Sensor2] [EXT_Sensor3]
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.
Chassis Fan 1-5 Step Up
This item allows you to set the value of the chassis fan step up.
Configuration options: [0 sec] [12 sec] [25 sec] [51 sec] [76 sec] [102 sec] [127 sec]
[153 sec] [178 sec] [204 sec]
Chassis Fan 1-5 Step Down
This item allows you to set the value of the chassis fan step down.
Configuration options: [0 sec] [12 sec] [25 sec] [51 sec] [76 sec] [102 sec] [127 sec]
[153 sec] [178 sec] [204 sec]
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CPU Fan Max. Duty Cycle(%)
Use the <+> and <-> keys to adjust the maximum CPU fan duty cycle.
When the CPU temperature reaches the upper limit, the CPU fan will
operate at the maximum duty cycle.
CPU Middle Temperature
Use the <+> and <-> keys to adjust the CPU middle temperature.
CPU Fan Middle Duty Cycle(%)
Use the <+> or <-> keys to adjust the CPU fan middle duty cycle.
CPU Lower Temperature
Use the <+> or <-> keys to adjust the lower limit of the CPU temperature.
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.
When the CPU temperature is lower than the lower limit, the CPU fan will
operate at the minimum duty cycle.
Detects the type of chassis fan installed and automatically switches the
control modes.
Enables the Chassis Fan Q-Fan Control feature in PWM mode for 4-pin
chassis fan.
Enables the Chassis Fan Q-Fan Control feature in DC mode for 3-pin
chassis fan.
Disables the Q-Fan control.
ASUS TUF Z270 MARK 1 BIOS Manual