How to make a forced fan button. How to turn on the cooling fan on a VAZ. Forced fan activation using the SpeedFan program

Many people have noticed that the temperature at which the radiator fan on a VAZ turns on is too high when compared with the operating temperature of the engine. Manufacturers are trying to reduce the amount of harmful emissions, since at high temperatures the fuel burns better together with the components.

But there is not only a positive effect, but also a negative one. If the engine overheats a little, then destructive processes begin for the metal inside, so wear resistance decreases. If you do not take into account that electrical components that affect the switched on fan may fail, then the time to notice overheating will be less than at normal temperatures.

We need to ensure that the engine operates evenly. This can be accomplished by creating a parallel fan circuit. A positive wire must be connected to one contact, and the negative contact is connected to the switch via a parallel wire.

It is worth mentioning additional features that allow you to control the normal engine temperature. There are no relays in the electrical circuit as a simple switch is sufficient for operation.

This method is not a replacement for the standard fan operation circuit, but only an alternative option for operating the unit at low temperatures. The driver must control the entire process.

If the car’s engine overheats, but this connection diagram is implemented, then it is better to check the cooling system again, ensuring its operation.

As soon as signs of overheating are detected, that is, the arrow indicating the temperature has entered the red zone, but there is still no puff of steam from the engine compartment, then turn on the interior heater at full power.

This will help reduce the temperature of the coolant in the cooling system. Next you need to turn on the emergency lights, depress the clutch pedal and roll to the side of the road. The car cannot be turned off immediately; the engine is run at normal idle speed for about five minutes, and the heater must still operate at full power. Only now can you open the hood and inspect the engine compartment.

You need to try to determine where the steam is coming from, see if there is coolant in the expansion tank, check the integrity of the thermostat, radiator and rubber hoses.

When actively using laptops, especially in the hot season, users often encounter strong heating. Systematic overheating leads not only to slowdown of the OS and periodic self-shutdown of the PC, but also to premature failure of the processor, motherboard or other structural elements. To reduce the temperature of the laptop, you can forcefully turn on the fan included in the laptop cooling system by software changing some of its settings.

Ways to control the operation of a cooler on a laptop

In laptop computers, the BIOS is responsible for the normal functioning of the cooling system. At the same time, the factory settings provide for the fan to operate at only 50% of its maximum power.. This is done so that during operation the cooler does not buzz too much and does not consume a lot of electricity.

Almost all motherboards provide the ability to programmatically control the performance of the cooling system. There are several ways to force the fan on your laptop:

  1. Via BIOS.
  2. Using special software.

Changing the cooler settings can lead to unpleasant noise during its operation, as well as accelerated battery drain. Therefore, before taking radical measures, you should disassemble the laptop, and then clean the fan and motherboard from dust, because it reduces heat transfer and, accordingly, leads to an increase in the temperature of the PC.

Forced fan start via BIOS

To make your laptop cooler work more efficiently, you can change its speed and set the CPU temperature it needs to maintain. To do this you need to do the following:

The software shell of the Hardware Monitor tab may differ in different BIOS builds. However, if you know what parameters need to be changed, you can easily switch the fan to the required operating mode:


In intelligent mode, the cooler can operate with the following parameters:

  • Silent – ​​the emphasis is on silent operation of the system and saving battery power;
  • Standard – the fan will operate at half its capacity;
  • Performance and Turbo – the fan is overclocked to its maximum (in this case, the battery life of the laptop will be slightly reduced, since the cooler will consume a lot of energy).

Forced fan activation using the SpeedFan program

Another way to improve the performance of a cooler is to use special software, which includes the free SpeedFan utility. To overclock the fan using this application, you must:


There are other programs that allow you to force the laptop fan to start. Thus, using the AMD OverDrive utility, you can make changes to the operation of a PC cooler built on an AMD processor. The Riva Tunes application has been developed for Intel processors.

To fix this problem, the OS provides auxiliary settings. To change them, you can use third-party programs, but to turn on the fan on a laptop completely, you just need to change a couple of parameters in the device’s power supply circuit.

Checking the health of the equipment and setting up the BIOS

Before you start performing various manipulations on your computer, first make sure that the built-in cooler is working at all. Also check the ventilation for dirt. Quite often, the fan does not perform its functions due to the fact that dust and fine debris clog it.

First, let's figure out how to force the fan on a laptop. As a rule, when the structure is turned on, cooling starts first. To check this, hold some piece of paper or thread near the ventilation hole. The brought object should vibrate and this observation indicates that air is being blown out of the hole. If the thread, on the contrary, sticks to the hole, it means that the fan is connected incorrectly and the polarity is reversed. This causes the cooling to not work properly and only makes cooling more difficult.

On some laptops, the BIOS can control fan activity. As a rule, this occurs on many expensive models, but there are exceptions. To turn on the fan on laptops from Acer, MSI, etc. of the gaming series, use additional BIOS features. On expensive models, the mother card is capable of controlling the table of elements (processor, coolers, etc.).

Turn off the laptop and when rebooting, go to the BIOS; in most cases, to do this, immediately after turning it on, you need to press DEL, F2 or ESC. Each computer model has its own methods.

Go to the “Power” section, here you can find information about the processor temperature and cooler rotation activity. Find the parameter “CPU Q-Fan Control” and “CPU Fan Profile”. The first parameter must be enabled, the other item is responsible for the profile used:

  • Silent (minimum noise, battery saving);
  • Standard (fans are connected when the device is under increased load, for example, during games);
  • Turbo (constant cooling, fans work without stopping);

To enable fan purge on a Lenovo laptop, etc., manufacturers may need to use third-party programs. On models over 100,000 rubles (MSI, Acer Predator, etc.), the manufacturer adds special software with auxiliary cooling system control functions to the sales kit.

Speed ​​Fan and other programs

Most budget devices do not support RPM control. But such a problem can be solved programmatically through third-party software. The most popular program is Speed ​​Fan. Through it you can turn on the fan on laptops from Samsung, Dell, Lenovo, Acer, HP and many other manufacturers that do not have built-in specialized software.

There is a drop-down list on the main program window; through it you can control the activity of the cooling system in real time.

To view detailed information from temperature sensors and configure cooler activity, go to the configuration tab.

To turn on the fan on a Lenovo and Acer laptop, you can use special applications; these 2 manufacturers provide customers with proprietary software. For some series of laptops, separate software is created, a sample of such programs:

  • Lenovo - Lenovo Energy Management;
  • Samsung - Easy Settings;
  • MSI - MSI Afterburner;
  • HP - HP Notebbok Fan Control;
  • Acer - ACFan Control, SmartFan, A1ctl;
  • ASUS (eee series models) - Eeectl.

In addition to these programs, you can also try software from processor manufacturers AMD and Intel:

  • AMD OverDrive (for processors from AMD);
  • Riva Tunes (for Intel processors).

How to turn on the fan on a laptop through Windows

Windows 7, 8, 10 have a built-in program for setting up table control. To open it follow the instructions:

  • Open Control Panel. Press WIN+R and enter “control”.
  • In the control panel, find the "power" item.
  • Select any table scheme and opposite it, find the item “setting up a power supply scheme”.
  • Click on “change additional settings”.
  • In the list of available settings, find the section “processor table control -> system cooling policy”. Next, from the available options, select the “active” option. Now the fan on the laptop is always on. This leads to improved cooling, but the noise level of the device increases noticeably.

    Many users complain about poor cooling on HP. To fix this problem, turn on the fan on your HP laptop to active mode. After this, overheating will occur much less frequently and working with the device will become much more comfortable.

Forced activation of the cooling fan. The cooling system in the engine on the VAZ classic is not bad in itself, but it can be improved by making the fan turn on forcibly. Why is this needed? There are cases when on such cars the fan starts working very late, so in the summer the cooling system does not cope with its task.

Accordingly, the engine begins to overheat, and in some cases stops working altogether. Forced activation is necessary in order to keep the engine in working condition for a long time.

The process itself is not complicated; you just need to install a button that will turn on the fan in forced mode. In order to do this, you will need the following materials:

- two connectors;
— a button that will turn on the fan;
- wires;
- insulating tape;
- a sharp knife.

First you need to cut into the cooling system.

The next step is to run the wires into the interior.

The following photo shows how to route the wires. They are pulled out instead of the plug. If the button is flat, then this place is ideal for it.




That's all! Now you can turn on the fan in your car at any time by simply pressing a button!