The Minimum Duty Cycle, Maximum Duty Cycle, Primary Temperature Input, and Secondary Temperature Input parameters are used to specify the configuration for this mode. In Automatic (Auto) control mode, the fan speed will vary automatically based on thermal conditions and configuration.

This parameter specifies whether the fan will be controlled automatically or manually. This parameter is always set for System fan control and there are no other options.

Sustained processor usage of 75 percent or higher, for a long period.

Sustained file transfers for a long period.

You may need to change the fan control settings if your usage model includes any of the following instances: The default settings may be modified in future BIOS revisions as Intel continues to fine-tune them to get the best tradeoff between cooling and fan acoustics. These settings help minimize fan noise while keeping the system properly cooled in a normal working environment. Preset values are for a normal desktop working environment. The table shows an example of the temperature and duty cycle settings for preset configurations: Option This parameter specifies the minimum duty cycle that outputs to the fan.įan speed increases by this percentage for each degree over the minimum temperature.

The value is calculated by Tcontrol minus a fixed value. Quiet: A preset configuration that is set to keep the overall system quieter, but slightly warmer.įanless: Hides all fan control-related setup options.įan speed increases if the processor temperature exceeds this value. Each value can be user-configured.Ĭool: A preset configuration that keeps the overall system cooler, but slightly louder.īalanced: A preset configuration that is set to keep the overall system balanced between cool and quiet. Options are from 20 to 100 percent in 10 percent increments.Ĭustom: Allows the fan speed to be customized based on processor temperature, minimum duty cycle, and duty cycle increment (see Other Fan Control Settings, below). Optionįixed: Allows the fan speed to be set at a fixed speed and never change. See the table below for fan control definitions. Available settings can vary, depending on Intel NUC model. System fan control settings in BIOS can be changed to meet the needs of your system usage model. Fan settings are shown in the CPU Fan Header pane.Press F2 during start to enter BIOS Setup.Follow these steps to view or change system fan control settings:

This document covers cooling and fan control options in BIOS Setup for Intel® NUC products.

How to use smc fan control