How to connect a fan to the motherboard. How to connect a fan to the motherboard

Instruction

First you need to determine where and which should be installed. To do this, remove the housing covers and inspect it for ventilation holes. Most often they are located on the front and rear panels corps. Measure between two adjacent mounting holes (they are located in a "square", you need to measure its side). With the measurement results, go to the store and buy the right fan.

Pay attention to whether there is a free three-pin connector for connecting. Where it is located, you can find out from the instructions for motherboard, in the diagram it is usually called "System Fan". Depending on the board model, these connectors can be from one to five. If there is no free connector, you need to buy a fan with a direct connection to the power supply or equipped with an appropriate adapter.

On the side surface of the cooler there is a marking indicating the direction of rotation of the blades and airflow. Coolers are installed on the front panel "for blowing", and on the back - "for blowing". Attach the cooler to its place from inside the case and secure it with the self-tapping screws that it comes with. Sometimes, instead of screws, silicone "pins" are included in the kit, with them the fixing procedure is even easier, and they prevent the transfer of cooler vibration to the case.

Connect the cooler cable to the power connector (on the motherboard or directly to the power supply). Turn on the computer and check if the new coolers are spinning, and if so, in which direction. To do this, bring a thin strip of paper to them; you should not climb into a running fan with your fingers. Carefully close and secure the housing covers.

Sources:

Cooling systems
how to connect a fan

To begin with, let's conduct a test that will show whether we need a fan in the kitchen or bathroom at all. Hold a match or lighter near the vent. If the flame goes out or deviates towards the hole, then there is no point in installing a fan, the ventilation system is working. If the flame does not react, then you need to install a fan.

You can sometimes hear the mindless, saw off the lower door so that a gap forms between the floor and the door, I wonder if the advisers themselves have already done this with their door worth $ 300-500, assuming tight closing?

In our 21st century, the century of perfect technologies, there are fans that will not only not spoil the external, aesthetic appearance of your kitchen or bathroom, but, on the contrary, will organically merge with the interior. If this is a room fan, it must be protected from steam and splashes, its electrical safety index must be at least IP 45, and its performance must correspond to an indicator of 100 m3 / h.

The kitchen is more demanding on the circulation of constant fresh air in it, which is why the fan in the kitchen should be more powerful, its performance should be 200-300 m3 / h. Depending on the room, you should also choose the scheme of the exhaust fan. Where it does not have any fundamental requirements, you should use the "classic" connection scheme, for example, in the toilet, this is done by parallel connection with a lamp. This is very convenient, the fan turns on and off at the same time as the light in the toilet is turned on and off.

It is important to take into account with such a connection that if the voltage of the lamp is 12 volts, then it is necessary to connect the fan to the step-down transformer. In the case of the kitchen, this method would be inappropriate. Since the fan must also work during daylight hours, when we do not use light, for these purposes there are quite convenient fans with a built-in timer that can be set to work and turn off, or just turn it on and it will work as long as you don't turn it off yourself.

For the bathroom, an exhaust fan with a sensor that reads the humidity level in the room is ideal, they are more expensive than usual, but they will work better, it will automatically turn on when the humidity values \u200b\u200bare exceeded.

Sources:

Bathroom fan: connections to a switch and with a timer

Often, especially in the summer months, when there is unbearable heat, our computers begin to overheat, which is expressed in freezes, breakdowns, and generally in refusal to work. To avoid this, you can put additional cooling.

You will need

Two 120 mm fans, screwdriver, self-tapping screws.

Instruction

As a rule, most computers have two places for attaching additional coolers: in front and behind. It's better to have both at the same time. The front is inflated, and the rear is inflated. Thus, they form a constant flow of fresh air, and it will not stagnate and heat up inside the computer.

First you need to remove the side cover. system block. Usually it is screwed with two screws on the rear panel, but depending on the design of the case, it can be closed with latches.

Inside the case on the front panel there is a plastic mount for a 120 mm fan, which can be removed by pressing the clips. You need to install the cooler in the mount in such a way that during rotation the air is sucked into the computer. After that, put the mount in place.

The fan, most likely, will have to be screwed to the rear panel with self-tapping screws from the back of the case through special mounting holes. Install the cooler so that when the blades rotate, the air is blown out.

Now it remains to connect the fans. This can be done directly on the motherboard (it should have a couple of additional connectors just for this case) or through a special adapter - directly to the power supply. Now you can close the lid. It is worth considering that the volume of the computer after installing the cooling will increase slightly, but as soon as the heat subsides, the fans can be turned off again.

Connection order

Power off the computer

Simply turning off the PC with a button is not the best solution. It must be completely isolated from the mains, that is, unplug it from the socket or put the switch in the “off” position.

Fix the cooler in place

To do this, you need to dismantle the side cover, install the fan in the place intended for it and fix it with bolts. It is necessary to pay attention to the indicator of the direction of rotation of its impeller (arrow on the end part of the cooler). Depending on how the fan is positioned, the airflow can be directed either into the computer (pull-in) or out of it. And this directly affects the cooling efficiency of the system unit electronics. In order not to be mistaken, it is advisable to replace the cooler "one to one", therefore it is not advisable to remove the faulty one before purchasing a new one.

Connecting to the power supply

The author does not know which fan the reader will install to replace the failed one. It can be a used product from another computer or purchased, but they all come in various modifications. Therefore, only possible options are considered below.

The photo shows the pinout of the cooler connectors depending on the number of contacts. If their number does not match the conclusions of the computer's power supply, you will have to use adapters. In brackets - the color designation of the conductors according to the second option.

Wire marking

+12 V - Kr (Zhl).
-12 V is always black.
Tachometer line - Zhl (Zel).
Speed control - blue.

Computer power supply pinout
Cooler connector pinout

If the fan is quite noisy, then it can be powered not with 12 V, but with a seven (connection to the extreme terminals) or five (to red). The ground wire, as noted above, is always black.

Some articles give recommendations for changing the speed of rotation of the impeller using limiting resistors. Their power is about 1.2 - 2 W, and the dimensions are appropriate. Already - not very convenient. In general, this is understandable. But what are the criteria for choosing the resistance value, if the user with electronic equipment is at best only “you”? And at worst, no way.

The author advises not to experiment and, if desired, include a diode in the circuit. Regardless of the type, it will necessarily provide a certain voltage drop of the order of 0.6 to 0.85 volts. If you want to reduce the rating even more, you can use 2 - 3 semiconductors in series. To do this, you do not need to engage in engineering calculations or consult with a specialist.

A computer is a complex device with many components that must work continuously. Cooling is an integral part of this whole complex system, since every part gives off heat, consuming electricity. If there were no cooling, then the risk of sudden “burning” would increase tenfold. But what to do if the old cooling is out of order? Definitely, you need to look for a replacement and take on the installation. How to properly install fans in a computer case? You can find the answer to this question in this article.

A little about the main

It will not be a secret to anyone that all components personal computer have a tendency to heat up. Some of these elements get very hot. The CPU, GPU and motherboard are the hottest parts inside the system unit. That is why each user must take care of proper cooling and high-quality removal of heat flows.

Most commonly used in computers air cooling because it is very practical and cheap. The principle of operation of such a mechanism is very simple: the elements give off heat to the air around them, and already hot air is blown out of the case of the system unit using fans. Also, quite often, PC parts are equipped with heat sink elements (radiators).

The importance of the cooling system is simply obvious, but how to properly install the cooler on the processor and other components of the device?

Choosing new components

Before you start looking for additional coolers, you should carefully examine your gadget:

Remove the cover of the system unit case, determine the number of places for installing additional components.
It is also worth taking a look at the motherboard, because it is on it that all the connectors for parts are located.

Here are some tips to help you choose:

It is better to choose devices with the largest suitable size.
Give preference to devices with a large number of blades. Such devices are quieter.
When buying, you should pay attention to the stickers on the devices, because they indicate the noise level.
If your motherboard has 4-pin headers, then a 4-wire fan is worth getting.

If all devices are purchased, then you should be wondering how to properly install coolers in the system unit. Now we will answer this question.

Installing new components

In order to install parts in a computer, it is worth familiarizing yourself with several major location variations. We will only talk about standard cases here, since everything is individual for each.

When there are no additional cooling elements in the case

This layout is standard for almost all modern personal computers that are sold in electronics stores. Hot air always rises, and the fan in the PSU (power supply) brings it out.

Important! This arrangement has one tangible drawback - all the heat that passes through the PSU only heats it up more. Also, heat transfer deteriorates due to the fact that cold air is sucked into the case randomly and from all sides.

But even this method is better than the wrong location of additional equipment.

We place the cooler on the back of the case

This method is relevant only if we have only one place for an additional cooler. The device should be located directly under the PSU, which will help ensure proper air circulation without serious consequences for the aforementioned PSU.

Important! And here there is one minus - the dust will accumulate faster than usual, and this is due to the increased rarefaction.

How to install an additional cooler in the system unit in another way? Read on!

Location on the front of the system unit

This option is also suitable only for those cases in which there is only one seat. The fan must be placed on the front of the PC case, but set to “Blow”. You need to position the part so that it is opposite the hard drive (s), since all the cold air that enters the device will blow over them.

Important! Such an installation is one of the most effective, because it achieves almost perfect circulation of cold air flows, and the dust inside will not linger. The overall noise level is very low.

We put two coolers in one case

Undoubtedly, this method will be the most effective of all. Here the installation process is quite simple:

One fan is installed on the front wall of the case, working for “blowing”.
A second cooler is installed on the back panel of the personal computer case, but already on the “blowing out”.

Important! A constant directional airflow will circulate through your device, which will help to avoid overheating in any part of the PC. Dust will not settle inside the case at all, the overall noise level will decrease, and the pressure inside will stabilize.

Now you know how to install an additional cooler in the system unit, but what should you be afraid of during installation? Let's talk about the wrong installation.

Important! Overheating of the system also occurs due to increased load in terms of clogging the operating system with junk files.

To reduce the risk of such an adverse event, be sure to install and use.

How not to install coolers?

In order to understand, let's pay a little attention to the following cases of incorrect installation.

The cooler at the back works on “blowing”

Such cooling will not bring any effect, since all the heat that the PSU gives off to the environment will be immediately sucked back in, and the air will not move at all in the lower part of the system unit. This method will not work for anyone.

The cooler is located in front and works on “blowing”

With this arrangement method, you will turn your computer into a real dust collector, since there will be very rarefied pressure inside the case. The fans will operate in overload mode, and all neighboring components will overheat terribly.

The cooler at the back works for "blowing", and the front - for "blowing"

This location creates a closed air ring that prevents hot air from rising. At this rate, only increased overloads of low pressure inside can be achieved, which, again, will affect cleanliness.

Both components work on "blowing"

In this case, the pressure will be excessively high, which directly proportionally affects the load on the coolers.

Both components work on "blowing"

The most dangerous mode for the operation of the cooling system. Low pressure prevents the normal operation of all parts, the air does not circulate at all, which leads to very rapid overheating.

Important! Even when installing the most powerful coolers, it will not be possible to avoid internal contamination of the system. Read about how and

Summer comes all year round. Everyone becomes hot, including computers. Only, unlike a person, it is allowed to install additional cooling in a computer, in particular, install one or more coolers. They provide an additional influx of cold air into the system unit and the result of it is burning air.

You will need

Computer, cooler of the right size, basic computer assembly skills

Instruction

1. First you need to determine where and which fans should be installed. To do this, remove the housing covers and inspect it for ventilation holes. More often than not, they are located on the front and rear panels of the case. Measure the distance between two adjacent holes for fixing the cooler (they are located in a “square”, you need to measure its side). With the results of the measurement, go to the store and purchase the necessary fan.

2. Pay attention to whether there is a free three-pin fan connector on the motherboard. You can find out where it is located from the instructions for the motherboard, on the diagram, as usual, it is called “System Fan”. Depending on the board model, these connectors can be from one to five. If there is no free connector, you need to purchase a fan with a direct connection to the power supply or equipped with an appropriate adapter.

3. On the side surface of the cooler there is a marking indicating the direction of rotation of the blades and airflow. Coolers are installed on the front panel “for blowing”, and on the back - “for blowing out”. Attach the cooler to its place from inside the case and secure it with the self-tapping screws that it comes with. Occasionally, silicone “pins” are included instead of screws, with them the fixing procedure is even easier, and they prevent the transfer of cooler vibration to the case.

4. Connect the cooler cable to the power connector (on the motherboard or casually to the power supply). Turn on the computer and check if the new coolers are spinning, and if so, in which direction. To do this, bring a thin strip of paper to them; you should not climb into a running fan with your fingers. Carefully close and secure the housing covers.

Throughout the year, the computing power of devices is growing at a rapid pace, at the same time, the power consumption is also increasing. And when there is not enough power supply with standard connectors on the motherboard, they resort to the use of additional conductors along a separate line of the power supply

Instruction

1. Particularly resource-intensive devices are the central processor and a discrete Hi-end video card. Also, when overclocking is used, due to increasing power consumption, additional food will never damage and ensure the stability of the computer. For connection are used: four, six and eight-pin connectors. Their designation is respectively 4 pin, 6 pin, 8 pin. If there is a shortage of appropriate connectors, 2 * 4 pin molex> 6 pin / 8pin adapters are used. To organize additional power, you need help from the power supply module. When choosing a power supply, you should pay attention to the fact that even with the appropriate contacts, the power may still not be enough to start or stable operation of the system.

2. Let's say to connect additional power to the processor, you should connect the four / eight-pin connector to the corresponding connector on the motherboard. The video card connection scheme is similar to the above, six and eight-pin connectors are used.

3. The calculation of additional power is carried out taking into account the power of the power supply module separately, let's say the power consumption of the video card is 170 W, the PCI-E bus on the motherboard is capable of delivering 75 W, every six pin connectors can also give 75 W, which means that for the video card to work, you need to connect two six-pin auxiliary power connectors . The calculation of power is carried out with rounding to the huge side.

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There are cases that fan stops spinning and cools the block components food. It is not necessary to purchase the newest unit at all. food. Need to replace old fan a. Replacing the block cooler food, it is possible to significantly extend the life of the unit and save on getting a new one. True, replacing the cooler is not a very difficult procedure, but this issue has its own nuances.

You will need

Computer, cooler, screwdriver

Instruction

1. First you need to disconnect and remove the block food from the computer by opening its case cover. Disconnect all block wires food from the components of the system unit. Unscrew the fixing screws on the back of the computer and remove the PSU from the case.

2. Now unscrew the screws on the body of the unit itself food and open its cover. After that, you need to disconnect the wire, with the support of which voltage is supplied to the PSU cooler.

3. There are two possible options, depending on the block model food. 1st option. The fan is attached to the board with the help of a special plug. To disable fan and from the block food it is necessary to primitively pull the wire towards you.

4. If you do not see in the place of attachment fan and a special connector, which means that the wire is easily soldered into the board on the block food. In such cases, it is necessary to carefully cut the cooler wire at a point closer to fan y.

5. Now unscrew fan from the block cover food. It is attached with four bolts. You need to choose a cooler of the right size. In a computer parts store, this is allowed without problems.

6. If you have in the block food there is a connection socket (the one from which you removed fan), easily plug in the newest one. If you cut the wires, then the newest cooler needs to be soldered. To do this, cut the wires on the new cooler. Next, solder the wires that you cut in the block. food, to wires cut in fan e. After this, be sure to “isolate” the contacts.

7. Later as fan will be connected, screw it to the block cover food. Close block body food and screw back the screws. Be careful not to pinch any wires. Install block food into the body. To test its operation, connect the wires to the motherboard and turn it on. If everything is positive, block food should earn.

Often, only in the summer months, when there is unbearable heat, our computers begin to overheat, which is expressed in freezes, breakdowns, and generally in refusal to work. In order to avoid this, it is allowed to put additional cooling.

You will need

Two 120 mm fans, screwdriver, self-tapping screws.

Instruction

1. As usual, most computer system units have two places for attaching additional coolers: in the front and in the back. It's better to have both at the same time. The front is inflated, and the rear is inflated. Thus, they form a continuous flow of fresh air, and it will not stagnate and heat up inside the computer.

2. First you need to remove the side cover of the system unit. Usually it is screwed with two screws on the rear panel, but depending on the design of the case, it can be closed with latches.

3. Inside the case on the front panel there is a plastic mount for a 120 mm fan, which can be removed by pressing the clips. It is necessary to install the cooler in the mount in such a way that during rotation the air is sucked into the computer. After this, put the mount in place.

4. Most likely, each fan will have to be screwed to the rear panel with self-tapping screws from the back of the case through special mounting holes. Install the cooler so that when the blades rotate, the air is blown out.

5. Now it remains to connect the fans. This can be done easily on the motherboard (it should have a couple of additional connectors just for this case) or through a special adapter - directly to the power supply. Now you can close the lid. It is worth considering that the volume of the computer will increase somewhat after the installation of cooling, but as soon as the heat subsides, the fans can be turned off again.

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Note!
All actions should be performed by disconnecting the computer from the network.

Additional fans installed in the computer system unit to prevent overheating of certain equipment. It is necessary to positively prefer a cooler, so that this device works stably and provides sufficient cooling.

You will need

- crosshead screwdriver.

Instruction

1. First determine the type of fan mounting. To do this, open the system unit and visually examine the acceptable options for installing a cooler. Usually screws or glue are used. The final version is only suitable for connecting a fan to a radiator, since it is strictly forbidden to glue the cooler to microcircuits.

2. Now select the fan power. Find out the speed of rotation of its blades. This parameter directly depends on the degree of cooling of the device to which this cooler will be attached. To the maternal board, as usual, only one fan is attached, mounted on the CPU heatsink. This is a hefty main part of the computer, so choose a pretty strong cooler.

3. Determine the type of power connection for the selected fan. On the mother board must be present connectors, consisting of 2, 3 or four pins. If on the mother board there are no free connectors for connecting a fan, then select another device, say a video card, to which you can connect a cooler.

4. Attach the fan to the CPU heatsink. Remember that both of the above devices are traditionally sold as a kit. If you bought only a fan, then make sure that it is properly fixed. If the failure of the cooler is not detected in a timely manner, this can lead to damage to the central processor.

5. Connect power to the fan. Turn on your computer and make sure the cooler is stable. After loading the operating system, install the SpeedFan program and run it.

6. View the temperature readings of the sensor installed on the CPU. If the temperature is too high, increase the speed of the blades. Do not close the program in order to be able to periodically evaluate the state of the CPU.

Coolers are a significant element air system computer cooling. The entire fan in the system is installed on a specific part, protecting it from overheating and combustion. A cooler is a metal or plastic radiator that drives air through itself and thus cools one or another element of the device.

Instruction

1. Coolers can be aimed at blowing or blowing. The 1st type of device is responsible for removing burning air from the system unit, the one that is formed as a result of the operation of installed devices. The blowing fans are responsible for the flow of cold air into the computer case.

2. Coolers provide cooling only for a certain specific element. So, the radiator installed on the processor cools only it and it does not affect the operation of other components of the computer.

3. Fans are invariably located on the 3 most heat-prone elements: processor, graphics card and power supply. In primitive systems, the power supply acts as a cooling element for the case and it is he who provides ventilation and removal of burning air.

4. Chilling air, as usual, enters the computer from the front panel. Air flows through each chassis and is expelled through a fan installed in the power supply. If the computer has a large number different devices subject to heat (one or several strong video cards, several hard drives and strong processor), as well as with a small case size, additional coolers are installed.

5. If you want to add a new device to your computer, say an extra hard drive, you need to consider the cooling system as well. Purchase the latest cooler for the front of the case. The radiator will take in more air and provide them with a device. It is also worth installing a cooler, one that will bring a greater amount of burning air out. It is worth noting that the larger the size of the fan, the cooler the cooling is, and therefore it’s probably cooler for everyone to buy radiators of a huge diameter.

Note!
It is not possible to install a rear blower fan. This will interfere with the air circulation in the computer case and thus may affect the life of the computer.

Connection order

Power off the computer

Fix the cooler in place

Connecting to the power supply

Wire marking

A little about the main

Choosing new components

Installing new components

When there are no additional cooling elements in the case

We place the cooler on the back of the case

Location on the front of the system unit

We put two coolers in one case

How not to install coolers?

The cooler at the back works on “blowing”

The cooler is located in front and works on “blowing”

The cooler at the back works for "blowing", and the front - for "blowing"

Both components work on "blowing"

Both components work on "blowing"

Instruction

Instruction

Instruction

Instruction

Instruction

Instruction

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