Gigabyte GA-X48-DS4 User Manual page 50

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 is configurable only if CPU Smart FAN
Control is set to Enabled.
Auto
Voltage
PWM
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-X48-DS4 Motherboard
Lets BIOS autodetect the type of CPU fan installed and sets the optimal CPU
fan control mode. (Default)
Sets Voltage mode for a 3-pin CPU fan.
Sets PWM mode for a 4-pin CPU fan.
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