Asus Z170M-PLUS User Manual page 76

Chassis Fan 1/2 Lower Temperature [40]
Use the <+> or <‑> keys to adjust the chassis fans' lower temperature. The values
range from 40°C to 75°C.
Chassis Fan 1/2 Min. Duty Cycle(%) [60]
Use the <+> or <‑> keys to adjust the minimum chassis fan duty cycle. The values
range from 60% to 100%. When the CPU temperature is under the lower limit, the
chassis fan operates at the minimum duty cycle.
2.7.6 Anti Surge Support [On]
This item allows you to enable or disable the Anti Surge function.
Configuration options: [On] [Off]
2-42 Chapter 2: Getting started