How to adjust fan speed?

CPU fan speed in the system can be used in the third party software, such as Aida64 view, about the speed of the CPU fan must be 4pin cable CPU fan, the market many CPU fan is 3pin is not supported by speed control. The original fan is 4pin, this fan can be based on the BIOS control to adjust the speed of the fan, when the fan speed is very high, usually to 4000 turn above the time will send a larger noise.

One, the CPU fan speed adjustment method: Use the software to adjust

Let us introduce how to use SpeedFan to control the CPU fan speed, the SpeedFan software is more useful, it is rare that this speedfan is the Chinese version, many CPU fan speed control software are English interface, most people can not understand. What many friends want most is to use SpeedFan to control the speed of the CPU fan. Just open this software, show too many items, not simple and clear. As shown in the figure, the speed of the Fan2 1985 is the CPU's fan speed. However, these do not affect the CPU fan speed adjustment. Next, I'll give you a detailed introduction to the method and step of using SpeedFan to automatically speed up the CPU fan in the article.

Open the software point "speedfan Configuration" button, we go to the "Advanced" menu, in the "Chip" location to select the control chip, not too familiar with the friends do not have to worry, because usually only the right control chip to see the picture in the picture, if you choose the other will not have these options.

Next, select the "PWM 2 Mode" option, which refers to the control of the number 2nd fan (PWM 1, 3, 4, 5, and so on). We need to set the control mode below, we choose "Software Control", and then "memory".

So we can go back to the main screen to adjust the fan speed.

Note that some fans will stop when the speed is below a certain percent of X, so remember to pay attention to the fan speed, so as not to cause loss. For a general fan, the speed of the fan is the slowest when it is 0% rpm. Typically fan1/speed01 for CPU fan sockets (Cpu_fan), fan2/speed02 for system fan sockets (Sys_fan), fan3/speed03 for power supply fan sockets (Pwr_fan). The author's Foxconn G31ax-k Motherboard is fan2/speed02 for CPU fan sockets (Cpu_fan).

Here, you need to configure the speed, pick the speed 02 (each person's computer is different, some is 01, as long as the CPU fan speed on the line).

The bottom of the set is the SpeedFan automatic speed adjustment function, we enable automatic change.

After configuring the speed of 02, we can manually adjust the fan speed "Speed 02", and then found that Fan2 speed change is very obvious. Since we are Fan2 the CPU fan, the other fan x data is not shown.

In addition, there is an AMD Overdrive software can adjust the CPU fan speed, but the English interface, which is developed by AMD for CPU overclocking software, in addition to the rich overclocking function, but also to the voltage, fan speed and other items to adjust.

Second, the use of BIOS control to adjust fan speed

The original fan is 4pin, this fan can be based on the BIOS control to adjust the speed of the fan, when the fan speed is very high, usually to 4000 turn above the time will send a larger noise.

Different BIOS interfaces are not very consistent this is not specific to the description, the following gives an example of the speed of the CPU fan through the BIOS, but reduce the speed of the CPU fan will affect the cooling performance, adjust to the appropriate, if you want to pursue the mute on a large fan blade area larger radiator.

When the motherboard and CPU fan are equipped with automatic speed regulation, next we have to enter the motherboard coms to make certain settings, in the PC Health status unit has a CPUFAN1 Mode setting option, which is to control the CPU fan, There are three modes thermal Cruise mode (by temperature), Speed Cruise mode (by speed adjustment), smart FAN iii+ mode (smart mode).

Thermal Cruise mode options are more than CPUFAN1 targettemp value (fan target temperature), CPUFAN1 torlerance value (fan up and down limits), CPUFAN1 StartUp value (Fan boot temperature), CPUFAN1 stop value (fan stop or low speed rotation temperature), CPUFAN1 StopTime value (fan low running time)

When you set the Cpufan targettemp value to 55 degrees, Cpufan tolerance value is 10,cpufanstartup 200,cpu to Stopvalue 150, then when the CPU temperature reaches 55 degrees, The fan runs at full speed, and when the temperature is below 55 o'clock, the fan runs at a relative speed of 200, dropping at a linear rate of 10 until it drops to 150 of the relative speed and then runs at a speed of 150.

The Speed Cruise mode option is simple, CPUFAN1 targetspeed value (target speed), CPUFAN1 tolerance value (linear rate of change)

Smart FAN iii+ mode is intelligent, so the option is also the simplest, with only one tuning option CPUFAN1 tolerance value, which only requires a range value, and the motherboard can automatically control the speed of the fan for CPU temperature.

3rd page Low Carbon energy saving! Actual fan speed adjustment

The concrete has what effect, a try then know. We test with a more intuitive and quick speed Cruise mode (speed Adjustment), by default CPUFAN1 targetspeed value is 55,cpufan1 tolerance value is 03, then fan speed is 20

Manually adjust the CPUFAN1 targetspeed value to 255, save the reboot, enter the COMs, will find the fan speed into 1048RPM, fan speed reduced by half.