Gigabyte GA-H77M-HD3 - Page 40

BIOS Setup
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& CPU Fan Control mode
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.
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specications,selectingPWMmodemaynoteffectively
reduce the fan speed.
& CPU Fan Speed Control
Allows you to determine whether to enable the CPU fan speed control function and adjust the fan speed.
Normal Allows the CPU fan to run at different speeds according to the CPU temperature. You can
adjust the fan speed with EasyTune based on your system requirements. (Default)
Silent Allows the CPU fan to run at slow speeds.
Manual Allows you to control the CPU fan speed under the Slope PWM item.
Disabled Allows the CPU fan to run at full speeds.
& Slope PWM
 AllowsyoutocontroltheCPUfanspeed.ThisitemiscongurableonlywhenCPU Fan Speed Control is
set to Manual. Options are: 0.75 PWM value /
o
C ~ 2.50 PWM value /
o
C.
& System Fan Speed Control
Allows you to determine whether to enable the system fan speed control function and adjust the fan speed.
Normal Allows the system fan to run at different speeds according to the system temperature. You
can adjust the fan speed with EasyTune based on your system requirements. (Default)
Silent Allows the system fan to run at slow speeds.
Manual Allows you to control the system fan speed under the Slope PWM item.
Disabled Allows the system fan to run at full speeds.
& Slope PWM
 Allowsyoutocontrolthesystemfanspeed.ThisitemiscongurableonlywhenSystem Fan Speed Control
is set to Manual. Options are: 0.75 PWM value /
o
C ~ 2.50 PWM value /
o
C.