How to turn on the pwm intelligent temperature control function of the motherboard CPU fan?

First of all, make sure that the fan cable must be 4 wires and the motherboard CPU fan socket must be 4 pins, so as to meet the premise of intelligent temperature control.

However, some motherboards turn off the speed regulation function by default. In this case, it is necessary to manually set it on.

Generally speaking, it can be summarized as: just enter the BIOS and set it up. Generally, the words with fan, q-fan, pwm, smart, K8 are set to Auto or Enable or pwm.

If the motherboard doesn't support the speed regulation function or can't be set, use the speed reduction cable (as an extension cable, plug it directly into the fan, and you can passively mute it. This deceleration line needs to be purchased separately. )。

For the temperature control switch settings of the motherboard bios, each motherboard model is different and cannot be listed one by one. Motherboards that are too old may not have this feature. However, motherboards above amd-C6 1 and intel-G3 1 all support speed regulation. ?

First, make sure that your CPU radiator is correctly plugged into the 4-pin socket marked "CPU FAN" on the motherboard (as shown in the figure).

Boot into the BIOS of the motherboard (press DEL or F2 when booting, and you will be prompted when booting), and look for an option called PC Health Monitor (different motherboards may have different words, but they generally have the word health).

Remember to press F 10 to save after setting, select Yes, and then press Enter to restart the computer.

Different motherboards have different BIOS settings, which are explained in detail below:

? The first category: intelligent fan control-mode setting? The CPU smart fan control is set to auto or enable (that is, it is set to be turned on first), and the CPU smart fan mode is set to PWM(PWM pulse speed regulation function is turned on).

Common motherboards, such as Gigabit BIOS (Gigabit motherboards are generally set to on by default and the parameter is AUTO).

The second CPU Q-FAN control setting

CPU Q- fan control is set to be enabled first.

The cpu fan profile mode will appear below, and there are three modes to choose from.

The best mode allows the system to automatically adjust the fan speed according to the temperature change;

Silent mode will reduce the running speed of the fan;

Performance mode will increase the fan speed to obtain the best system cooling effect.

Players are advised to choose according to their own situation.

Q-FAN is a patent of ASUS motherboard, which is of course used on ASUS motherboard. Before 10, the default CPU Q-FAN control function of the motherboard BIOS was turned off, and now the default BIOS of the motherboard after 1 1 is turned on.

The third CPU mute fan setting

There is no PWM option in the BIOS of this motherboard, which can be set to medium speed or slow speed.

1. First set the CPU mute fan to enable. 2. It is best to set the following target CPU temperature to 50-65. 3. Finally, the target CPU speed sets the speed level.

Similar to the following, the target CPU speed level is a percentage, which can be adjusted according to your own situation! Such as MSI motherboard.

Similarly, there are the following: the target CPU speed level can be adjusted according to your own situation! Ruhuaqing motherboard

The fourth category? Cool, n, static is also called "calm" (AMD).

Select "On". This function enables the computer to automatically adjust the frequency of the CPU as needed, thus achieving the effect of saving power and silencing. If there are enable and auto options in the diagram, please test and select the correct option respectively.

Category 5: CPU fan mode setting options (SmartFan is written in the BIOS of some motherboards).

This is the option we use to adjust the speed of the CPU fan.

It has three modes: manual mode, hot cruise mode and speed cruise mode-in fact, hot cruise mode is automatic mode.

Manual mode: in this mode, you can manually set the fan speed (0 ~ 255 levels), that is, the fan speed is divided into 256 levels for linear adjustment-to make it run at full speed, just set it to 255.

Hot cruise mode: In this mode, you need to set four values to tell the system how to adjust the speed automatically.

CPUFAN TargetTemp value When the temperature of CPU is less than this target value, the fan will rotate at a relatively low speed, and when the temperature of CPU is greater than this temperature, the fan speed will increase to full speed with the set value);

CPUFAN tolerance value (the rate of fan speed change, the greater the value, the faster the change);

Cpu fan startup value (when the CPU temperature reaches the set temperature of TargetTemp value, the fan speed will start to increase at this value);

CPUFAN stop value (setting to decrease to this value when the fan speed is lower than the target value);

CPUFAN stop time value (the time when the fan speed changes from the initial value to the final value)

For example, if the CPUFAN TARGETTEMP value is set to 55 degrees, the CPUFAN TOLERANCE value is set to 10, the CPUFAN STARTUP value is set to 200, and the CPU STOP value is set to 150, the fan will run at a relative speed of 200 when the CPU temperature reaches 55 degrees. According to the linear rate of 10, the fan will rise to full speed. When the temperature is lower than 55℃, the fan runs at a relative speed of 200, then decreases at a linear speed of 10 until it drops to a relative speed of 150, and then runs at a speed of 150.

Speed cruise mode is similar to manual mode, that is, set a linear change rate, and then press this change rate to reach your set speed. ):

CPUFAN Targetspeed value;

CPUFAN Allowable Value (the rate at which the fan speed changes, the greater the value, the faster the change)

Similarly, there are BIO settings of some motherboards of Yingtai and Shengji, which increase the options of fan wiring, and everything else is similar.

The above lists some computer BIOS setting methods. Each motherboard may be a little different, but they are all the same. If it is different from yours, please refer to the motherboard manual.