Gigabyte GA-A75N-USB3 - Page 47

- 47 - BIOS Setup
CPU Smart FAN Mode &
Species how to control CPU fan speed. This item is congurable only if CPU Smart FAN Control is set
to Enabled.
Auto Lets the BIOS automatically detect the type of CPU fan installed and sets the optimal CPU 
fan control mode. (Default)
Voltage Sets Voltage mode for a 3-pin CPU fan. 
PWM Sets PWM mode for a 4-pin CPU fan. 