Asus ROG STRIX Z490-F Bios Manual page 60

Chassis Fan 1-2 Step Up
This item allows you to set the value of the Chassis Fan 1-2 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 1-2 Step Down
This item allows you to set the value of the Chassis Fan 1-2 step down.
Configuration options: [0 sec] [12 sec] [25 sec] [51 sec] [76 sec] [102 sec] [127 sec]
[153 sec] [178 sec] [204 sec]
Chassis Fan 1-2 Speed Low Limit
This item allows you to disable or set the Chassis Fan 1-2 warning speed.
Configuration options: [Ignore] [200 RPM] [300 RPM] [400 RPM] [500 RPM] [600
RPM]
Chassis Fan 1-2 Profile
This item allows you to set the appropriate performance level of the chassis fan.
[Standard]
[Silent]
[Turbo]
[Manual]
The following items appear only when Chassis Fan 1-2 Profile is set to [Manual].
60
Sets to [Standard] to make the Chassis Fan 1-2 automatically adjust
depending on the chassis temperature.
Sets to [Silent] to minimize the fan speed for quiet Chassis Fan 1-2
operation.
Sets to [Turbo] to achieve maximum Chassis Fan 1-2 speed.
Sets to [Manual] to assign detailed fan speed control parameters.
Chassis Fan 1-2 Upper Temperature
Use the <+> or <-> keys to adjust the upper limit of the Chassis Fan 1-2
temperature. The Chassis Fan 1-2 will operate at the maximum duty cycle
when the temperature source is higher than the limit.
Chassis Fan 1-2 Max. Duty Cycle (%)
Use the <+> or <-> keys to adjust the maximum Chassis Fan 1-2 duty
cycle. When the temperature source reaches the upper limit, the Chassis
Fan 1-2 will operate at the maximum duty cycle.
Chassis Fan 1-2 Middle Temperature
Use the <+> or <-> keys to adjust the middle limit of the Chassis Fan 1-2
temperature.
Chassis Fan 1-2 Middle. Duty Cycle (%)
Use the <+> or <-> keys to adjust the Chassis Fan 1-2 middle duty cycle.
Chassis Fan 1-2 Lower Temperature
Use the <+> or <-> keys to adjust the lower limit of the Chassis Fan 1-2
temperature. The Chassis Fan 1-2 will operate at the minimum duty cycle
when the temperature source is lower than the limit.
Chassis Fan 1-2 Min. Duty Cycle(%)
Use the <+> or <-> keys to adjust the minimum Chassis Fan 1-2 duty
cycle. When the temperature source is under the limit, the Chassis Fan
1-2 will operate at the minimum duty cycle.
ROG STRIX Z490-F BIOS Manual