ASROCK Intel W790 Series Software Setup Manual page 69

[PWM Mode] Select this mode for 4-pin fan.
Chassis Fan 3 Setting
Allows you to select a fan mode for Chassis Fan 3, or choose [Customize] to set 5 CPU
temperatures and assign a respective fan speed for each temperature.
Configuration options:
[Customize] [Silent Mode] [Standard Mode] [Performance Mode] [Full Speed]
Chassis Fan 3 Temp Source
Allows you to select a fan temperature source for Chassis Fan 3.
[Monitor M/B] Select this item to set motherboard as the fan temperature source.
[Monitor CPU] Select this item to set CPU as the fan temperature source.
Case Open Feature
Enable or disable Case Open Feature to detect whether the chassis cover has been removed.
Intel W790 Series
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