Asus Prime Z270-A Series Bios Manual page 51

Qfan Configuration
Qfan Tuning
Click this item to automatically detect the lowest speed and configure the minimum
duty cycle for each fan.
CPU Q-Fan Control
This item allows you to set the CPU Q-Fan operating mode.
[Auto] Detects the type of CPU fan installed and automatically switches the
control modes.
[PWM Mode] Enables the CPU Q-Fan Control feature in PWM mode for 4-pin CPU fan.
[DC Mode] Enables the CPU Q-Fan Control feature in DC mode for 3-pin CPU fan.
[Disabled] Disables the Q-Fan Control.
The following items appear only when you set the CPU Q-Fan Control to [Auto], [PWM
Mode], and [DC Mode].
CPU Fan Step Up
This item allows you to set the value of the CPU fan step up.
Configuration options: [0 sec] [2.1 sec] [2.8 sec] [3.6 sec] [4.2 sec] [5.0 sec] [6.3 sec]
[8.5 sec] [12 sec] [25 sec]
CPU Fan Step Down
This item allows you to set the value of the CPU fan step down.
Configuration options: [0 sec] [2.1 sec] [2.8 sec] [3.6 sec] [4.2 sec] [5.0 sec] [6.3 sec]
[8.5 sec] [12 sec] [25 sec]
CPU Fan Speed Low Limit
This item allows you to set the low limit warning for CPU Fan speed.
Configuration options: [Ignore] [200 RPM] [300 RPM] [400 RPM] [500 RPM] [600 RPM]
CPU Fan Profile
This item allows you to set the appropriate performance level of the CPU fan.
[Standard]
[Silent]
[Turbo]
[Manual]
The following items appear only when you set the CPU Fan Profile to [Manual].
CPU Upper Temperature
Use the <+> and <-> keys to adjust the upper limit of the CPU temperature.
The CPU fan will operate at the maximum duty cycle when the CPU
temperature is higher than the limit.
ASUS PRIME Z270-A/AR Series BIOS Manual
Set to make the CPU fan adjust automatically depending on the CPU
temperature.
Set to minimize the fan speed for quiet CPU fan operation.
Set to achieve maximum CPU fan speed.
Set to assign the detailed fan speed control parameters.
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