Gigabyte GA-946-S3 Manual - Page 46
CPU Smart FAN Control, CPU Smart FAN Mode
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English CPU Smart FAN Control Enables or disables the CPU fan speed control function. Enabled allows the CPU fan to run at different speed according to the CPU temperature. You can adjust the fan speed with EasyTune based on system requirements. If disabled, CPU fan runs at full speed. (Default: Enabled) CPU Smart FAN Mode Specifies how to control CPU fan speed. This item can not be configured if Smart FAN Control Method is set to Disabled. Auto Lets BIOS autodetect the type of CPU fan installed and sets the optimal CPU fan control mode. (Default) Voltage PWM Sets Voltage mode for a 3-pin CPU fan. Sets PWM mode for a 4-pin CPU fan. Note: The Voltage mode can be set for a 3-pin CPU fan or a 4-pin CPU fan. However, for a 4-pin CPU fan that is not designed following Intel PWM fan specifications, selecting PWM mode may not effectively reduce the fan speed. GA-946-DS3/S3 Motherboard - 46 -