What is PWM SpeedFan?

PWM stands for pulse width modulation. PWM fans and/or pumps are found in some CPU coolers and GPU (aka graphics card) coolers. They use an integrated circuit to control the speed of a fan or pump and, therefore, how much cooling it’s providing to the CPU or GPU.

How do I control fan speed in SpeedFan?

Start SpeedFan, press CONFIGURE button and select the Fan Control tab. Enlarge the window if needed. In the example image we have already created a Fan Controller and called it “CPU Fan Control Strategy”. We can create more using the Add button on the right.

Can SpeedFan control case fans?

Many of them have utilities you can use to adjust settings, often fan speeds, in windows. Or you can go to BIOS. Or you can try a program called Speedfan.

How does PWM control fan speed?

PWM, in brief, uses the relative width of pulses in a train of on-off pulses to adjust the level of power applied to the motor. A 2-wire fan is controlled by adjusting either the dc voltage or pulse width in low-frequency PWM.

Which is better PWM or DC?

PWM fans are useful because they minimize noise output and are more energy efficient than DC fans. Due to how they function, the bearings in a PWM fan will last much longer.

Is SpeedFan malware?

Is speedfan.exe a Virus or Malware? As per the information we have the speedfan.exe is not a Virus.

How can I control my fan speed without BIOS?

SpeedFan. If your computer’s BIOS doesn’t allow you to adjust the blower speed, you can choose to go with a speed fan. This is one of the free utilities that give you more advanced control over your CPU fans. SpeedFan has been around for years, and it’s still the most widely used software for fan control.

Why do PC fans have 3 wires?

The third wire gives your computer a measure of control over that. It reports the speed of the fan back to the computer’s processors, which allows the motherboard to control the speed of the fan by raising the voltage – and speeding the fan – when the extra cooling is required, and lowering it when it’s not needed.

How is fan speed controlled?

Capacitors. Capacitors control the flow of power to a fan motor. A capacitor receives 100 percent of the power supplied from a power source to a fan motor and meters how much of that power the motor actually receives. This allows you to set the fan speed at any level between off and maximum.

Can I control DC fans?

If you want to vary the speed of DC fans, the only option is to vary the input DC supply. The DC power supply can be reduced below 12 V for lower speeds. There are still limitations in the percentage decrease in the speed of DC fans.

Are DC fans louder than PWM?

Most DC fans offer no control of their speed (run at 100% speed/voltage at all times) or have a thermostatic (on/off) control switch. As you might expect, DC fans are typically louder than PWM fans as they spin at maximum RPM, regardless of perceived temperature.

Is using SpeedFan safe?

For the case fans, I’m fairly certain that speed fan will allow you to basically make a temp curve for a fan based on the GPU temperature if speedfan is able to get the sensor reading, so that you do not have to manually switch it. However, if you don’t mind doing it that way, that’s fine too. Nothing will break, no.

How can I change my fan speed?

Click a radio button in the upper-left corner of the screen under “Main operating mode” to select an overall fan policy for your system. Select “Manual fan control” to use a slider bar to adjust the fan’s speed.

How to set up the fan speed?

Run the app and click Sensors on the main window.

What is the speed of a fan?

The average speed for an electric motor like used in a fan is 1,725 RPM . A 3,450 RPM is considered a high speed fan . If a fan has 3 speeds , the increment are low 1/3 speed , med. 2/3 speed , high full speed .

What is a computer fan controller?

A pc fan controller gives you control over the case fans, water cooling hardware, or other similar cooling devices in your system. With a fan controller you get a series of switches, knobs, or dials that let you control the speed of your computer’s fan speeds to adjust the airflow in your system.