Adjusting the speed of fans in the computer. Free software for windows free download

The cooler is an important component of the cooling system of any computer. It performs the function of removal of warm air. The speed control of the fan rotation is performed directly with system board and depends on the readings of the processor crystal temperature sensor. What it is higher, the greater the speed of rotation of the fan. Self-adjustment frequency speed is most often made due to a large noise that creates a fan.

Note: With self-adjusting speed, it is necessary to monitor the temperature of the processor, since when the revolutions decrease, it increases, which in the end it may fail the chip.

How to independently set the fan speed via BIOS?

Adjust the fan speed can be standard - via BIOS.

To enter the BIOS, you need to press the "delete" key at the beginning of the download (in some computers can "F2", "F12", "ESC"). Depending on the type of BIOS, the fan speed control is either in the Power tab or Hardware Monitor.

In this menu, you can independently adjust the fan speed.

How to configure the fan speed in Windows?

On some system boards, changing the settings of the cooler in the BIOS can be blocked or the adjustment can be superficial. In this case, you can use special utilitieswhich provides the manufacturer with drivers (MSI Afterburner, PcProbe). If these are not available, you can use third-party software manufacturers, such as Speedfan. It is very popular among users, absolutely free and has an intuitive interface.

When you first start the program reads the current system parameters and fan turnover.

Note: At the time of loading, the computer fan must operate at maximum speed, since the utility reads the current fan speed and receives them for 100%.

The first block displays information from the detected sensors of the cooler. In the second - information from device temperature sensors. In the third - adjustment of the speed of rotation of the fan. In the Speed01 paragraph, you can install the desired level of revolutions (as a percentage).

When you can not perform an independent adjustment of the fan rotation speed on the computer?

Setting the speed of the cooler can not be performed if motherboard Does not have such support. This is usually coolers with a 3 pin connector. To make a fan speed control on a computer, you need to purchase a cooler with only 4 pin power connector or buy the revolver regulator to which the fan is connected directly. In this case, the adjustment is performed directly on the removable block, which is called the sole.

Also in most laptops, the revolutions control function is also not available (again due to the 3-pin connector). Such support has only a few models in which the manufacturer's programs need to be used. This is done to avoid overheating, as the compactness of the components, limits the heat exchange. Therefore, it is not recommended to change the frequency of the fan speed manually.

Comments:

Speed modern computer It is sufficient enough high price - power supply, processor, video card often need intensive cooling. Specialized systems cooling cost expensive, so on home computer Typically set several cabinet fans and coolers (radiators with fans attached to them).

It turns out an efficient and inexpensive, but often noisy cooling system. To reduce noise levels (provided that the efficiency is maintained), the fan speed control system needs. Miscellaneous kind of exotic cooling systems will not be considered. It is necessary to consider the most common air cooling systems.

So that noise when working fans is less without reducing cooling efficiency, it is desirable to adhere to the following principles:

1. Large diameter fans work more efficiently than small ones.
2. The maximum cooling efficiency is observed in coolers with heat pipes.
3. Four-contact fans are preferable than three-contact.

The main reasons why there is an excessive fan noise, can only be two:

1. Bad lubricant bearings. Eliminated by cleaning and new lubrication.
2. The engine rotates too fast. If it is possible to reduce this speed while saving permissible level Cooling intensity, then this should be done. The most accessible and cheap ways to control the speed of rotation are considered.

Fan rotation speed controls

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First method: Switching to the BIOS function regulating fans

The functions of the Q-Fan Control, Smart Fan Control, etc. supported by part of motherboards, increase the frequency of rotation of the fans with an increase in the load and decrease during its fall. You need to pay attention to the method of such a fan speed control using the example of Q-Fan Control. You must perform a sequence of actions:

1. Log in BIOS. Most often for this you need to press the "Delete" key before downloading the computer. If before downloading at the bottom of the screen instead of the "PRESS DEL TO ENTER SETUP" inscription, a proposal appears to press another key, do it.
2. Open the "Power" section.
3. Go to the line "Hardware Monitor".
4. Replace to "Enabled" The value of the functions of the CPU Q-Fan Control and Chassis Q-Fan Control on the right side of the screen.
5. In the CPU and Chassis Fan Profile strings appeared, select one of three performance levels: reinforced (Perfomans), quiet (Silent) and optimal (Optimal).
6. By pressing the F10 key, save the selected setting.

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Second method: fan speed control by switching method

Figure 1. Distribution of voltages on contacts.

For most fans, the voltage in 12 V. When decreasing this voltage, the number of revolutions per unit of time decreases - the fan rotates slower and less noise. You can use this circumstance, switching the fan into several voltage ratings using an ordinary Molex connector.

The voltage distribution on the contacts of this connector is shown in Fig. 1a. It turns out that it can remove three different voltage values \u200b\u200bfrom it: 5 V, 7 V and 12 V.

To ensure such a method for changing the fan rotation speed:

1. Opening a de-energized computer case, remove the fan connector from its socket. Wires that go to the power supply fan is easier to drop out of the board or simply have a snack.
2. Using a needle or awl, free the cutting legs (most often the wire of the red color is plus, and black is minus) from the connector.
3. Connect the fan wires to Molex connector contacts to the required voltage (see Fig. 1b).

The engine at a nominal rotation speed of 2000 rpm at a voltage of 7 V will be given per minute of 1300, at a voltage of 5 V - 900 revolutions. The engine with a nominal value of 3500 rpm - 2200 and 1600 revolutions, respectively.

Figure 2. Scheme of the sequential connection of two identical fans.

A special occasion of this method is the sequential connection of two identical fans with three-pin connectors. For each of them there are half of the operating voltage, and both rotate slower and are less noisy.

The diagram of such a connection is shown in Fig. 2. The left fan connector connects to the motherboard as usual.

A jumper is installed on the right connector, which is fixed with a tape or scotch.

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Third way: Adjusting the fan rotation speed by changing the power of the feed current

To limit the rotational speed of the fan, you can order constant or variable resistors to the circuit of its power. The latter also allow you to smoothly change the speed of rotation. Choosing such a design, you should not forget about its minuses:

1. Resistors warm, uselessly spending electricity and making their contribution to the process of warming up the entire design.
2. The characteristics of the electric motor in various modes can be very different, for each of them resistors with different parameters are needed.
3. The scattering capacity of resistors should be large enough.

Figure 3. Electronic speed adjustment circuit.

Rationally apply electronic circuit Adjusting the speed of rotation. Its simple variant is shown in Fig. 3. This scheme is a stabilizer with the ability to adjust the output voltage. The DA1 chip (CR142A5A) input is supplied to a voltage in 12 V. On the 8-reinforced output of the VT1 transistor, a signal is fed from its output. The level of this signal can be adjusted by a variable R2 resistor. As R1 it is better to use a rapid resistor.

If the load current is not more than 0.2 A (one fan), the KR142EN microcircuit can be used without heat sink. When it is presented, the output current can reach the value of 3 A. at the input of the scheme, it is desirable to turn on the ceramic capacitor of a small capacity.

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Fourth Method: Adjusting the fan rotation speed using a refusal

Refobas - electronic devicewhich allows you to smoothly change the voltage supplied to the fans.

As a result, the speed of their rotation varies smoothly. The easiest way to buy ready-made refobas. Inserted usually in the 5.25 compartment. The disadvantage is perhaps only one: the device is expensive.

The devices described in the previous section are actually a refuses that allow manual control. In addition, if a resistor is used as a regulator, the engine may not start, because the current value is limited at the start of the start. Ideally, full-fledged refobas must provide:

1. Uninterrupted engine launch.
2. Rotor rotation speed control is not only manual, but also automatically. With an increase in the temperature of the cooled device, the speed of rotation should increase and vice versa.

A relatively simple scheme corresponding to these conditions is presented in Fig. 4. Having appropriate skills, it is possible to make it with your own hands.

Changing the fan power voltage is carried out in a pulse mode. Switching is carried out using powerful field transistors, the resistance of the channels in the open state is close to zero. Therefore, the start of engines occurs without difficulty. The highest rotational speed will also not be limited.

The proposed scheme is working like this: in the initial moment, the cooler, which operates cooling the processor, operates at a minimum speed, and when heated to some maximum permissible temperature Switches to limit cooling mode. When reducing the temperature of the processor, the refoiss again translates the cooler for the minimum speed. The remaining fans support manually set.

Figure 4. Adjustment scheme with refusal.

The basis of the node that controls the work of computer fans, the integral timer DA3 and field-effect transistor VT3. Based on the timer, a pulse generator was assembled with a pulse frequency of 10-15 Hz. The wellness of these pulses can be changed using a R5 trimming resistor, which is part of the R5-C2 RC chain. Due to this, you can smoothly change the speed of rotation of the fans while maintaining the required current value at the start of the start.

The C6 capacitor carries out smoothing pulses, thanks to which the rotors of the engines rotate softer, without making clicks. These fans are connected to the XP2 output.

The basis of a similar control node processor cooler These are the DA2 microcircuit and the VT2 field transistor. The only difference is that when the voltage DA1 operating amplifier appears at the output, it is, thanks to VD5 and VD6 diodes, it is superimposed on output voltage DA2 timer. As a result, the VT2 fully opens and the fan of the cooler begins to rotate as quickly as possible.

Sometimes the hum from the system unit does not allow you to enjoy silence or focus. In this article, I will tell you how to regulate the turnover of coolers with special Program For Windows XP / 7/8/10, and at the end I will show the whole process in more detail.

Why fans are noisy and what ways to fix it

With the exception of special flammificent modifications, each computer is installed: in the power supply, on the processor, video card, in the case and others. And each in its own way is noise, and it is bad news. Many are simply used to the noise of their Systems and believe that it should be. Maybe should, but not necessarily! In 99% of cases, noise from the computer can be reduced by 10% -90%, and this is good news.

As you already understood, noiselessness is achieved by a decrease in noise from coolers. This is possible with the help of applying more quiet, by nature, coolers, or by reducing revolutions already existing. Naturally, it is possible to reduce the speed to the values \u200b\u200bnot threatening! This article will be discussed in this way. More to reduce the noise will help the programs for.

So, to reduce the rotation speed of the cooler, one of the options can be used:

1. Program for controlling the speed of rotation of coolers
2. "Intellectual" revolutions control system, stitched in BIOS
3. Utilities from the manufacturer of motherboard, laptop or video card
4. Use a special device - refobas
5. Artificially reduce fan supply voltage

Who works fine with BIOS control, can not read further. But often the BIOS is only superficially adjusting the revolutions without incline to silent, and at the same time still acceptable, values. Utilities from the manufacturer, sometimes the only way Influence on fans Because third-party programs often do not work on unusual motherboards and laptops. We will analyze the most optimal - the first way.

Speedfan Coolers Management Program

This is a multifunctional and fully free program. Probably immediately a little bit, saying that this program does not work on all laptops, but you can try, and will not regulate the revisions of those fans that do not know how to manage the BIOS motherboard. For example, from my BIOS, you can enable the SMARTFAN cooler control function only for the central processor. Although watching current speed can still be for two.

ATTENTION: Before using the program, turn off the control of the BIOS coolers!

Otherwise, the following situation may occur. At the time of loading the Speedfan program, current speed is read and accepted for maximum. Accordingly, if by this time the BIOS will not spin the fan to maximum revolutions, then the program will not be able to do this.

I so once happened that at the time of loading the program the cooler on the processor was spinning at a speed of 1,100 rpm, and Speedfan could not set the greater value. As a result, the processor heated to 86 degrees! And I noticed it by chance when at the time of a large load did not wait noise from the fan. Fortunately, nothing burned, but a computer could

Running and appearance of the program

Download and install the application from the official site.

When you first start, an ordinary window will arise with a helping to help the functions of the program. You can put a tick so that it does not appear anymore and close it. Next Speedfan considers the parameters of the chip on the motherboard and the sensor values. A sign of successful execution will be a list with current values \u200b\u200bof fans and temperature components. If the fans are not detected, then the program cannot help you. Immediately go to "Configure -\u003e Options" and change the language to "Russian".

As you can see, the processor and information from the voltage sensors are also shown here.

In block "1" there is a list of discovered rotational speed sensors with names FAN1., FAN2...., and their number may be greater than there is actually (as in the picture). We draw attention to values, for example, FAN2 and the second FAN1 have real indicators 2837 and 3358 RPM (revolutions per minute), and the rest are zero or with garbage (in the picture 12 RPM it is garbage). Excess times we will remove.

The "2" block shows the detected temperature sensors. GPU - this is a graphic chipset, HD0. – hDD, CPU. – cPU (instead of CPU in the picture TEMP3), and the rest of the garbage (there can be no 17 or 127 degrees). This is a lack of a program that you need to guess where that (but then we ourselves rename the sensors as needed). True, you can download well-known configurations on the site, but the procedure is not simple and complicated by English.

If it is not clear what parameter for what is responsible, then you can see the values \u200b\u200bin any other program to determine the parameters of the computer and sensors, for example, and compare with those defined the Speedfan program to know exactly where what kind of speed and temperature readings (on the video for an article all Show).

And in block "3" we have speed adjustments SPEED01, SPEED02.... with which you can set the speed of rotation in percentage (may be shown as PWM1, PWM2 ..., look for more details on the video). So far, we need to determine which SPEED01-06 on which Fanx affects. To do this, change the values \u200b\u200bof each from 100% to 80-50% and see whether the speed of some FAN has changed. I remember what kind of speed on what fan influenced.

I will repeat that not all fans will be adjusted, but only those that can manage the motherboard from the BIOS.

Setting Speedfan.

So got to the settings. Click the "Configuration" button and the first thing we call all sensors with clear names. In my example, I will programmatically control the cooler of the processor.

On the Temperature tab, we find the processor temperature sensor defined in the previous step (I have TEMP3) and the click on it first once, and then a second again - now you can enter any name, for example, "CPU TEMP". In the settings below fit the desired temperature, which will support the program with the minimum possible speed of rotation of the cooler, and the alarm temperature at which maximum turns are included.

I install 55 and 65 degrees, respectively, but for each it is individually, experiment. With a highly low set temperature, the fans will always spin on the maximum turns.

Next, we deploy the branch and remove all the checkboxes, except for the SPEED0X, which regulates the FANX processor (we have already identified earlier). In my example it is SPEED04. And also remove the checkboxes from all other temperatures that we do not want to see in the main window of the program.

On the Fans tab, we simply find the right fans, call them as you want, and unnecessary turn off.

• Minimum - the minimum percentage of maximum revolutions that the program can establish
• Maximum - respectively, the maximum percentage.

My minimum costs 55%, and a maximum of 80%. Nothing terrible that the program will not be able to set a value by 100%, because on the "Temperature" tab, we set the threshold value of the alarm, in which 100% turns will be forced. Also for automatic regulation do not forget to put a tick "Autimension".

In principle, this is all. Now go to the main window Speedfan and put a tick "Automiciousness of Vents" and enjoy automatic adjustment The speed of rotation from the first time will not be optimally configured to themselves, experiment and leave suitable parameters, it is worth it!

Extra options

Speedfan program has a bunch of functions and parameters, but I will not delve into them, because This is the topic of a separate article. Let's put some more you need on the Configuration -\u003e Options tab.

• Running fresh - To Speedfan started immediately in the turning form. If not put, then launch Windows The main window of the program will hang on the desktop. If the program does not start with Windows, simply add its label to autoload.
• Static icon - I prefer to install that in the system tray, instead of numbers, the program icon is displayed.
• Turn on closure - Install that when you click on the "cross", the program did not close, but turned into a systemic tray (near the watch)
• Full fan speed when leaving - If you do not install, then after exiting the cooler turnover program will remain in the state in which they were at the time of closure. And since it will be no longer able to manage them, it is possible to overheat a computer.

And now video with detailed setting Speedfan. Note: A little failure occurred on the video. After manual regulation of the FAN1 processor fan, its value has not returned to 3400 RPM, and for some reason it remains at 2200 RPM. After restarting the program, everything was normal. In the latest versions of Speedfan, there was no such computer.

The processor is strongly noise - the problem of most people who use systemic blocks (in common for ignorance, they call the processor). To be more accurate, then noisy fanswhich cools the system from overheating.

The reasons for which the fan can make a different one. Most often, they need to clean carefully from dust (including the cooling radiator) and lubricate. But there is another moment that caused noise at my workplace is the speed of rotation of the cooler.

Coolers are divided into two types: with speed adjustment function software And without. Fortunately, I have a Schumer Cooler, who supported the control of rotation using software tools.

Everything perfectly could be configured in Bios, which himself regulated the rotation of the cooler. But it was one but. The principle of adjusting the cooler BIOS is that you specify the minimum speed of rotation, which the BIOS adheres to. And with an increase in temperature, the speed of rotation of the cooler increases in order to reduce it.

And since I work in the range of 45-50 degrees, the system thinks that it is overheating and always twists the fan, which means this is not an output. We needed a manual control of the speed of rotation by the cooler without any resistors, etc. A couple of requests on the Internet and found program to control the speed of rotation by the coolerSpeedfan..

Fortunately, the program was free and compatible with Windows XP and Windows 7 (x32-64). Run also in Ubuntu Linux Through Vine, but the program refused to work.

Setting Speedfan. Increase and reduce the speed of the cooler

To begin with, go to the download page and download last version programs. Now that the program is installed it can be loaded for about a minute (sometimes much faster). The first launch program reads information about the hardware and coolers that are installed. This is how I have it:

• all prompts are disabled
• the program starts with Windows
• running the program in the tray
• when "closing the program", it turns into a tray

In the program, a bunch of settings and since the interface in Russian, adjust it simply. Initially, the program is installed in English to set the Russian language Press the configuration button:

In the window that opens, find the Options tab and select the language you want and click OK:

Now the program works in Russian. Turning off tips is performed at the time of their show. They interfere more than help. Therefore, once again, when you see the hint, check the box next to "not to show more".

In order to the program booted together withWindowsOpen Start and select the Startup folder. You need to copy the shortcut on Speedfan to this folder. This is the easiest option.

If you want the program to load invisible (in the tray), then go back to the settings tab and check the box next to the "Running".

In the same tab, check the checkbox "fold when closing" and when you click on the cross in Windows, the program will not close, but will turn into a tray. I think it is very convenient, as it is uncomfortable to open and close the program.

The coolers themselves are defined in the main window of the program. Here are these windows with percentage and there are rotational speed controllers. I have three coolers in my system, so three is displayed. Changing power in percent, the speed will decrease or increase. Accordingly, 0% fans stop, 100% fans are spinning at full power.

Instruction

Before increasing the speed of the cooler, you should be sure if your motherboard supports this option. This information must be necessarily in the manual for it. Almost all modern system boards of various manufacturers have a function of adjusting the speed of the cooler.

Turn on the computer. Immediately after that you need to press the DEL key. In most cases, it is using this button that the BIOS menu can be opened. If, after pressing this key, nothing happens, look at the instructions for the system board. There must be a button that is responsible for opening the BIOS menu.

After opening the BIOS, proceed to the Power section. In this section, select HW Monitor Configuration. There should be an option to regulate the speed of the coolers. Depending on the system board model, this option may be called differently, for example, CPU Q-Fan Function or simply Fan Control. You must navigate the word Fan. Select this option and press the ENTER key. From the proposed options, select Enable, after which the Profile string.

Several fan rotation speeds appear. Select Performance mode. In it, the speed of the coolers will be maximum. But on some motherboards can be available Turbo mode. If you are extremely important to maximize the cooling components of the computer, then if there is a Turbo-mode, it is best to choose it.

After selecting the desired mode, exit BIOS. Be sure to preserve the changed settings. The computer will reboot. When it is next launch, the speed of the coolers will increase.

Special fans are installed in modern landline and mobile computers. Their main task is to provide high-quality cooling of all important PC elements. For proper work Coolers need to be configured.

You will need

• Speed \u200b\u200bFan program.

Instruction

First, try to optimize the coolers using standard motherboard functions. Open menu Bios. After rebooting the computer. Find the menu that is responsible for settings of the fans. Activate the ALWAYS FAN parameter. This is especially true when working with mobile computers, because Often, the coolers are simply disconnected to save the battery power.

Set speed rotation The desired coolers. It is usually necessary to enter a number that determines the percentage ratio of the rated speed to its maximum value. Save the fan operation parameters and restart the computer.

Quite often, the cooler setup feature is missing in the BIOS menu. In such situations, it is necessary to use utilities that work with Windows operating systems. Install the Speedfan program. Open this utility and go to the Clock tab. Expand the Motherboard menu and select the manufacturer of the motherboard used.

Go to the Readings menu and locate the fields displaying speed rotation coolers. Choose speed Rots of each cooler. When setting the value of 100% of the blade will rotate with the maximum speedyu.

If you downgrade speed Coolers, be sure to make sure that the devices to which the fans are connected are not overheated. To do this, open the Charts tab and in the Analyze column, select the Temperatures option. Highlight the device checkboxes, whose temperature changes must be monitored.

After starting the application that actively uses the PC resources, turn it out and see the readings of the temperature graph. Make sure that during the operation of all devices, their temperature does not exceed the permissible norms.

Sources:

• fan speed

If the system block of your computer is very noise, and after it is turned off, silence immediately becomes noticeable - this is not a normal situation. Noise from the computer should not exceed the permissible standards, and certainly should not interfere with sleeping or hear what a neighbor tells you.

You will need

• - a computer
• - Speedfan program.

Instruction

Perhaps your system unit clogged from dust (over time this happens almost with all personal computers) - Clean it carefully with a vacuum cleaner. If he is clean, you may just need to adjust speed Rotation of fans. Run the browser and in the search bar, enter the name of the program - Speedfan. Go through one of the first links and download the program on the hard drive. You can download the program on one of the software portals www.softportal.com.. Install the program by running the installation file.

Run the program. It will be necessary to wait a bit while the program performs the analysis of the operating system. If you are difficult to navigate in inscriptions on english languageClick on the Configure button and change the language into Russian on the Options tab. Now you need to enable hardware support for regulating the fan speed on the motherboard. Press the "Configuration" button, then the "Advanced" button. Change the value to Software Controlled and click "OK". If your motherboard has been determined by the program, this value will be set immediately.

Adjust the speed of rotation of the fans in the computer by pressing the control arrows. Should not strongly underestimate the indicators, as the fans are installed in system block Computer is not for noise, but to ensure the cooling of spare parts. If the components are overheated, it will lead to a breakdown of the computer. Try to choose the most optimal values \u200b\u200bof the parameters to speed cooler It was not low, but did not interfere with his sound surrounding.