How to short-circuit the power button. Motherboard won't start from the Start button

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What to do if the computer's power button is broken? Surely many users will be at a loss as to how to turn on a computer without a power button. Motherboard- This is not only the basis for “hanging” computer components, but also a means of communication between modules. It also contains some very important parts in itself, such as the BIOS - an add-on over all operating system and physical means, a battery that powers the CMOS memory on the computer and much more. Not every user knows all the functions and capabilities of the modules and motherboard.

The Power button is usually made of plastic, and the main structure inside that supports it is also made of plastic. Often the stop in this design can break due to strong pressure, so we will not be able to turn on the computer in the usual way, with the power button. But there are several options to do this without a special button, although not as convenient.

To do this, you need to open the inspection cover of your system unit.

At first, until you decide to take system unit for repairs, you can use this method. You can also rearrange buttons or contacts if the shape and location of the case allows this.

Turn on the PC using a mouse or keyboard

Surely almost no one knows that a computer can be started directly from the keyboard (without the “Power” key on it) or computer mouse. To do this, go into the BIOS by pressing and holding the required button, which depends on BIOS version. This is usually the DEL key.

In the window that opens we need the “Power Management Setup” section.
Now find the “Power on by PS2” item, where you need to specify how to start the computer.
To select a specific key to turn on the computer, look for the “Any key” item.
Next, so that the parameters that you have set are saved, press F10 and confirm the exit and save the settings.
Now you can test the given key on your keyboard.

This method of turning on the computer without the Power button seems very convenient. To prevent the computer from accidentally turning on, for example, if there are small children in the house who climb everywhere, you can set several keys to turn on. In this case, instead of the “Any key” item, find “Hot key”, after which you will see “Ctrl-F1” at the bottom of the monitor. Click on it and you can set your own keys to turn on the computer.

BIOS item “Power on by mouse”

To turn on the computer by pressing one of the buttons on the mouse, go to “Power on by mouse” and right-click or left button in order to set it with the power button.

Check the computer's power supply for serviceability

Sometimes the PC power button may not work due to a non-working power supply, which supplies all computer components with power.

Those who use computers long time, often complain about some problems. One of them is a malfunction of the power button. From time to time they fail completely, and then the question becomes relevant: how to turn on the computer without a power button?

general information

It also happens that there is power in the network, the motherboard signals about operation with its LED, but when you press the power button, nothing happens. The computer simply won't turn on! What to do in this case? How to turn on a computer without a power button, preferably in a not very difficult way?

It should be noted that there can be an extremely large number of reasons for this behavior of technology. Within the framework of the article, several of the most popular failure options and their elimination will be considered. Those that can easily be repeated at home will be given. If none of the things presented below can help, then it would be better to turn to professionals so that they can fix the problem.

Fast but complex check

First you need to check the functionality of the power supply:

To do this, you must first disconnect all connectors (from the video card, motherboard, hard drives, cooler, etc.).
You need to connect two wires to the widest connector on the power supply. As a rule, it is green and the nearest black. You can do this using a regular paper clip or tweezers.
We supply voltage from the outlet. And if the fans do not work, but everything was done correctly, then we can confidently say that the fault is in the power supply. If they start, then we can state that it is working.

Now you can connect the connectors back and solve the next problem.

How to start a computer?

So, we found out that the problem is in the computer itself. What to do now? The motherboard has many connectors to which elements of the front panel of the computer case are connected - buttons, LEDs, USB ports and other components. The connectors for the power button are usually located on the lower right side of the board. But it would be best to open the documentation for the element you are using and figure out where its contacts are. If it is not there, then you need to find the inscriptions: “On-Off” on English language(Power Switch (PW Switch), Power ON, On-Off). After this, remove the connectors and carefully close the PWR SW and Ground contacts. How? Yes, even with a ballpoint pen.

Here's how to turn on your computer without a power button. And if everything works after that, then we know exactly what the problem is. It is in the on/off button itself. But what to do after finding out this fact? Of course, repair or replace it. You can temporarily get out of the situation using the reset button by connecting it instead of the broken one. It is usually signed Reset.

In this simple way you can make the equipment work. And if the power button is broken, we can recommend fixing it as soon as possible to avoid this problem. But be careful - with inexperience or connivance, the computer can be seriously damaged. Therefore, you should carry out full repairs only at your own peril and risk. Fortunately, you can use the reset button for a very long time.

Working with keyboard shortcuts

To do this, we will have to work with the basic input/output system. True, not everything is so easy here. The fact is that to successfully use this method, the keyboard must be connected not to a USB port, but to a round PS/2. If this is not so, then, alas, nothing will work.

If the keyboard is what we need, then we need to set the setting (namely, select the items that correspond to the buttons that can turn on the computer using the keyboard). It could be either Space Bar (spacebar), or Power Key (the power button found on “advanced” keyboards) or Ctrl-Esc. After this, you should save the settings and turn off the computer to try this innovation.

How to find the required property? As soon as you have logged in basic system I/O, you should go to the Power Management Setup section and change On by Keyboard. And here we have an illustration to the question of whether it is possible to turn on the computer without a power button.

Features of technical design

As one person said, the only thing more reliable than the power button is a Soviet-made cast iron frying pan. And well, it should be noted that there is a significant amount of truth in these words. Therefore, if there is a button, then you can think about whether it’s worth changing the piece of equipment? After all, this is one of the most basic elements of a PC, so when it fails, we can say that the exploitation is literally off scale. Or they bought clandestine equipment from China. To prevent this from happening, you need to be careful when choosing a computer when purchasing it.

Safety precautions

And now I would like to go back a little and talk about safety precautions. It should be noted that most computer elements operate under low voltage, which amounts to a few or even fractions of volts. But not everything is so simple - because otherwise it would not be connected to a 220 V network. Therefore, always, even with the smallest cosmetic changes, it is necessary to completely disconnect the equipment from any voltage supply. Of course, this is quite labor-intensive, but remember that all safety precautions are written in someone’s blood.

Let's look at a small example of neglect. Here is a computer whose system unit is very difficult to completely disconnect from the power supply. It is put into sleep mode and opens side panel. And then an interruption is triggered (for example, from a message that came over the network) and the equipment turns on. It's unlikely to give you an electric shock, but the fan on the motherboard can give you a hard time. He, of course, won’t cut off your fingers, but he can beat them noticeably with his blades.

Conclusion

So we sorted it out, but these were the most primitive ways of checking the status and activation. It should be noted that there are quite a few a large number of various auxiliary equipment with which you can restore and start literally dead electronics. But, as a rule, it is available to experienced professionals who have been engaged in this business for quite a long time.

Although, as previously mentioned, in case of such a breakdown it is still better to think about replacing the system unit. Indeed, in this case, you can remove all the “internals” from it and rearrange it into a new one. And this will allow you to preserve all existing developments, and the replacement will be forgotten in a few days.

Today we will solve the problem “how to turn on the computer without a button.” Those who have computers for a long time often complain about some problems. One of them is a malfunction of the power button. From time to time they fail completely, and then the question becomes relevant: how to turn on the computer without a power button?

Functionality check

First you need to check the functionality of the power supply:

To do this, you must first disconnect all connectors (from the video card, motherboard, hard drives, cooler, etc.).
You need to connect two wires to the widest connector on the power supply. As a rule, it is green and the nearest black. You can do this using a regular paper clip or tweezers.
We supply voltage from the outlet. And if the fans do not work, but everything was done correctly, then we can confidently say that the fault is in the power supply. If they start, then we can state that it is working.
Now you can connect the connectors back and solve the next problem.

How to start a computer?

So, the problem is in the computer itself. What to do now? The motherboard has many connectors to which elements of the front panel of the computer case are connected - buttons, LEDs, USB ports and other components. The connectors for the power button are usually located on the lower right side of the board. But it would be best to open the documentation for the element you are using and figure out where its contacts are. If it is not there, then you need to find the inscriptions: “On-Off” in English (Power Switch (PW Switch), Power ON, On-Off). After this, remove the connectors and carefully close the PWR SW and Ground contacts. How? Yes, even with a ballpoint pen. Here's how to turn on your computer without a power button. And if everything works after that, then we know exactly what the problem is. It is in the on/off button itself. But what to do after finding out this fact? Of course, repair or replace it. You can temporarily get out of the situation using the reset button by connecting it instead of the broken one. It is usually signed Reset. In this simple way you can make the equipment work. And if the power button is broken, we can recommend fixing it as soon as possible to avoid this problem. But be careful - if you are inexperienced or lax, your computer can be seriously damaged. Therefore, you should carry out full repairs only at your own peril and risk. Fortunately, you can use the reset button for a very long time.

Keyboard shortcuts

The keyboard is a part of the computer that is very underestimated. Perhaps, answering the question of how to turn on a computer without a power button, you should have started with this method, which is both simple and easy. To do this, we will have to work with the basic input/output system. True, not everything is so easy here. The fact is that to successfully use this method, the keyboard must be connected not to a USB port, but to a round PS/2. If this is not so, then, alas, nothing will work. If the keyboard is what we need, then we need to set the setting (namely, select the items that correspond to the buttons that can turn on the computer using the keyboard). This can be either the Space Bar (spacebar), or the Power Key (the power button found on “extended” keyboards) or Ctrl-Esc. After this, you should save the settings and turn off the computer to try this innovation. How to find the required property? Once you have logged into the basic I/O system, you should go to the Power Management Setup section and change On by Keyboard. And here we have an illustration to the question of whether it is possible to turn on the computer without a power button.

Safety precautions

The most important thing in our lives is the safety of our health! It should be noted that most computer elements operate under low voltage, which amounts to a few or even fractions of volts. But not everything is so simple - because otherwise it would not be connected to a 220 V network. Therefore, always, even with the smallest cosmetic changes, it is necessary to completely disconnect the equipment from any voltage supply. Of course, this is quite labor-intensive, but remember that all safety precautions are written in someone’s blood. Let's look at a small example of neglect. Here is a computer whose system unit is very difficult to completely disconnect from the power supply. It is put into sleep mode and the side panel opens. And then an interruption is triggered (for example, from a message that came over the network) and the equipment turns on. It's unlikely to give you an electric shock, but the fan on the motherboard can give you a hard time. He, of course, won’t cut off your fingers, but he can beat them noticeably with his blades.

Those who have computers for a long time often complain about some problems. One of them is a malfunction of the power button. From time to time they fail completely, and then the question becomes relevant: how to turn on the computer without a power button?

general information

Fast but complex check

First you need to check the functionality of the power supply:

To do this, you must first disconnect all connectors (from the video card, motherboard, hard drives, cooler, etc.).
You need to connect two wires to the widest connector on the power supply. As a rule, it is green and the nearest black. You can do this using a regular paper clip or tweezers.
We supply voltage from the outlet. And if the fans do not work, but everything was done correctly, then we can confidently say that the fault is in the power supply. If they start, then we can state that it is working.

Now you can connect the connectors back and solve the next problem.

How to start a computer?

So, we found out that the problem is in the computer itself. What to do now? The motherboard has many connectors to which elements of the front panel of the computer case are connected - buttons, LEDs, USB ports and other components. The connectors for the power button are usually located on the lower right side of the board. But it would be best to open the documentation for the element you are using and figure out where its contacts are. If it is not there, then you need to find the inscriptions: “On-Off” in English (Power Switch (PW Switch), Power ON, On-Off). After this, remove the connectors and carefully close the PWR SW and Ground contacts. How? Yes, even with a ballpoint pen.

In this simple way you can make the equipment work. And if the power button is broken, we can recommend fixing it as soon as possible to avoid this problem. But be careful - if you are inexperienced or lax, your computer can be seriously damaged. Therefore, you should carry out full repairs only at your own peril and risk. Fortunately, you can use the reset button for a very long time.

Working with keyboard shortcuts

If the keyboard is what we need, then we need to set the setting (namely, select the items that correspond to the buttons that can turn on the computer using the keyboard). This can be either the Space Bar (spacebar), or the Power Key (the power button found on “extended” keyboards) or Ctrl-Esc. After this, you should save the settings and turn off the computer to try this innovation.

How to find the required property? Once you have logged into the basic I/O system, you should go to the Power Management Setup section and change On by Keyboard. And here we have an illustration to the question of whether it is possible to turn on the computer without a power button.

Features of technical design

As one person said, the only thing more reliable than the power button is a Soviet-made cast iron frying pan. And well, it should be noted that there is a significant amount of truth in these words. Therefore, if the computer’s power button does not work, then you can think about whether it’s worth changing the piece of equipment? After all, this is one of the most basic elements of a PC, so when it fails, we can say that the exploitation is literally off scale. Or they bought clandestine equipment from China. To prevent this from happening, you need to be careful when choosing a computer when purchasing it.

Safety precautions

Let's look at a small example of neglect. Here is a computer whose system unit is very difficult to completely disconnect from the power supply. It is put into sleep mode and the side panel opens. And then an interruption is triggered (for example, from a message that came over the network) and the equipment turns on. It's unlikely to give you an electric shock, but the fan on the motherboard can give you a hard time. He, of course, won’t cut off your fingers, but he can beat them noticeably with his blades.

Conclusion

So we figured out how to turn on a computer without a power button. But these were the most primitive ways of checking status and activation. It should be noted that there is a fairly large number of different auxiliary equipment with which you can restore and start literally dead electronics. But, as a rule, it is available to experienced professionals who have been engaged in this business for quite a long time.

fb.ru

How to turn on a computer without a button

The system case is an important component of the entire computer. It is in the case that the “production workshop” of the entire computer is located, so to speak. It is in the case that the motherboard is installed, and it is already “hung” on it RAM, video card, processor and all kinds of wires and cables. Moreover, the power supply is located in a separate place inside the case, as well as HDD and drive. Modern cases look quite attractive, menacing, aggressive, unusual... The developers have enough imagination, which means that ordinary buyers can choose from a huge assortment. But not only do the current buildings have an attractive appearance, they also have “working” advantages. Such advantages are the USB connectors, as well as microphone and headphone connectors on the front of the case, which in turn means that we don’t need to crawl under the table and get to the back panel of the case every time we need to connect a flash drive. I think everyone will agree that these are, in principle, trifles, but still, it’s more pleasant to just insert a flash drive in front and start working.

But, unfortunately, there are cases when some parts of the computer case fail. We are talking about the notorious POWER button, which is found on absolutely every case. During long-term use, this button It may simply fail, for example, stop pressing, or vice versa, it will fall deep into the case, and no matter how hard you try, you won’t be able to turn on the computer. What to do in such situations? If you don’t really need a computer, then it’s better to call a repairman and wait with peace of mind until he repairs everything, paying him a certain amount of money for it.

If you need to use the computer quite urgently, then perhaps you should use the following advice. First, you need to find a flat surface and carefully place the system unit so that the left cover is facing you, but you should not disconnect all the wires in order to complete everything faster , but it’s worth making sure that these wires are not strained. Besides, prerequisite it must be that the computer is disconnected from the power supply, as they say, you never know. Next, what needs to be done is to remove the left housing cover. In modern cases, this usually does not require any additional great effort, so there shouldn't be any problems with this.

After removing the cover, a stunning picture will appear in front of you. You will see everything that at one time you paid a round sum for, and that usually works peacefully, making an innocent noise, and that which now does not want to “start up”. Our attention should be primarily focused on the multi-colored wires that run from the front of the case to the motherboard. There can be a lot of such wiring, and it’s not surprising, because the POWER buttons and the RESET button, and USB ports are connected there, along with audio outputs. So, at the next step, we may need a little knowledge of English, which many received at school, because on the wiring themselves, as well as on the motherboard, near the connection of these wiring, it should be written what they mean. For example, you can take USB ports. On the motherboard itself, near the connection, there should be an inscription USB1, USB2, etc. This means that the wires connected to these connectors are nothing more than USB connection ports.

But we shouldn’t forget about our problem, which means that we need to look for the POWER wires (usually these are two wires intertwined with each other). Typically, the connectors to which the power or reset buttons are connected are located on the lower right side of the motherboard:

On most motherboards, these connectors are the same and consist of 9 pins arranged in two rows. Two last contact in a short row of 4 plugs are responsible for turning on/off the computer. Here are the connector diagrams for the most popular motherboard manufacturers.

AsRock

Asus

Biostar

Epox

Foxconn

Gigabyte

Intel

Once these two wires have been found, you should find where they are connected to the motherboard. Once the connection location has been discovered, it is worth carefully disconnecting these wires so that the small plugs are exposed.

That's it, now we're almost done. The final step is to turn on the computer; for this we need an ordinary stationery pen, preferably one that writes boldly. Once you have found such a pen, you can connect your computer to the power supply, and then carefully run the tip of the rod over these exposed needles. Or in other words, you just need to simply close these contacts. After these steps, the computer should come to life and the download will begin. If nothing happens, then you should repeat the procedure, but close these needles quickly enough.

Thanks to such simple steps, you can start the computer without special problems, however, this should not be neglected, and it is better to quickly repair the start button on the case to avoid unnecessary problems.

ddriver.ru

The computer won't turn on! The notorious POWER button!

Lately I began to often encounter a malfunction of the PC power button - the Power button. I didn't betray her before of great importance and didn't pay enough attention. But in vain!

It happens that there is power in the network, the power supply, when the corresponding contacts of the connector are closed, starts with half a turn and works great. The motherboard signals with its LED that there is standby voltage, but when the pwr button is pressed, nothing happens. The computer won't turn on!

Of course, there can be a great many reasons for this behavior, but it’s still worth paying attention to the PC power button!

What to do if the computer does not turn on?

1. You need to check the functionality of the power supply.

2. Start the PC, bypassing the power button, which is located in the PC case.

How to check a computer's power supply?

I answer. An express check of a computer power supply is carried out as follows:

1. Disconnect all power supply connectors from the computer (from the motherboard, from the video card, from all kinds of hard drives, coolers, and so on).

2. Now you need to short-circuit the two wires on the next connector. It is the widest of all that come out of the BP. You can short any black wire to a green wire. Typically I short the green and the near black (ground). This can be done with a regular paper clip or tweezers.

If the power supply is supplied with 220 volts from the outlet, the wires are connected correctly, the power button on the power supply itself (there are such models) is turned on, and the fans of the power supply do not start, then we can state that the power supply is faulty. On the contrary, if upon closure specified contacts If you see on the computer power supply connector that the fans inside the unit are rotating, and not just twitching or silent, then the power supply is working.

At the same time we learned how to launch computer unit power without a computer!

Many experienced technicians may argue that such a test cannot accurately show the serviceability or malfunction of the power supply. And they will be partially right. But we do an express check, which in this case quite enough. Moreover, not every user has a load stand or at least a multimeter to go deeper.

After checking the power supply, connect all connectors back. And we solve the next problem.

How to start a computer without a button?

Easily! Especially if you have a spacious building. There is a connector on the motherboard where all the elements of the front panel of the case are connected: LEDs, buttons, usb ports and much more. Typically, the connectors to which the power or reset buttons are connected are located on the lower right side of the motherboard. Also read the article about setting up computers to turn on from the keyboard and mouse.

Each motherboard manufacturer may have a different pin layout. That's why the best option The search will be to open the documentation for your motherboard and find the location of these pins there. The documentation for the motherboard must come from the store; if you lost it or the seller did not give it to you (which happens very rarely), then the documentation for the motherboard can be downloaded online from the manufacturer’s official website if you have access to the Internet!

If there is neither one nor the other, then we look for the inscriptions on the connectors. As a rule, they are signed with the letters Power Switch (PW Switch), Power ON, On-Off, not to be confused with PWRLED.

Here are typical connector pinouts from some manufacturers:

MSI motherboard

Asrock motherboard

Asus motherboard

Biostar motherboard

Epox motherboard

Gigabyte motherboard

Foxconn motherboard

Intel motherboard

We remove our connectors and carefully briefly close the PWR SW and Ground contact. The computer should start. What to close? Ballpoint pen!

If the computer starts up, then the conclusion is obvious: the power button is faulty. What to do in this case? Try reconnecting the button to the motherboard connector; there may be a bad connection. If this does not help, remove the button, and then, depending on the circumstances, either repair the button or replace it.

To get out of this situation for a while, you can connect instead of the power button reset button(reboot) and use it to turn it on.

Thanks to these simple steps, you can start the computer without any problems, but this should not be neglected, and it is better to quickly repair the start button on the case to avoid unnecessary problems.

Attention: Neither the author of this article nor the administration of this site bears any responsibility for possible problems that may occur when turning on the computer in this way. You will perform all of the above actions at your own peril and risk, and will be solely responsible for possible problems that are not described in this article.

Therefore, if you do not have sufficient qualifications and knowledge, I recommend that you contact a specialist.

www.mitrey.ru

How to turn on your computer if the power button is broken

Didn't find the one you need step by step instructions? It is possible that one of the site visitors can help. Leave a request right now if you are sure that this topic has not yet been covered on our project!

akak.ru

The PC power button is broken: what to do?

Any device is subject to physical wear and tear, as a result of which it may stop working. This also applies to desktop computers, with which problems constantly arise. Very often the power button in system units fails, without which it is very difficult to start the computer. So what should you do in a situation where you pressed the power button and nothing happened in response?

general information

Sometimes a situation arises in which it is impossible to turn on a desktop PC. In this case, there is power in the network, the LED on the system board lights up, which signals its operation, however, the device does not respond in any way to pressing the power button. Most likely this is due to its failure. So what to do in such a situation and is there any other way to start the computer?

Such a failure may be associated with a huge amount factors, some of which you can eliminate on your own, while others may require professional help. This article will discuss the most common causes of failure, methods for eliminating them, as well as some ways to start a system unit without a power button.

Diagnostics

A system unit is a very complex device consisting of various components, each of which can fail. Therefore, if you encounter any problem, the first thing you should do is try to understand what the problem is. The system unit is powered by a power supply unit, which is very sensitive to voltage drops. Thus, troubleshooting should begin with it. To do this, you need to disconnect all power supply wires from the system board, optical drive, hard drive and graphics adapter. Next, using a paper clip, you need to close two contacts on the widest adapter, which is responsible for supplying power to the motherboard. In most power supply models, these contacts are green and black. If, after a short circuit, the cooling cooler of the power supply does not start, this indicates that the device has failed. If everything works, then most likely the problem is with the power button.

How to turn on a PC without a button?

If the start button on your system unit is broken, then do not despair, since the computer can be turned on without it. The power button is located on the front panel, which connects to the system board. The motherboard has special connectors for connecting the panel, which are located in its lower right corner and labeled Power Switch. When you find this connector, you need to disconnect all the wires from it, after which you need to close the two contacts labeled PWR SW using a screwdriver.

If after performing the steps described above the system unit starts, then the problem really lies in the power button. Eliminate this problem can be done in several ways:

Completely replace the power button;

Connect the reset button to the power connectors;

Take your computer for repair to service center.

The best option will be a complete replacement of the worn-out button, since without it it will not be possible to operate the computer normally. After all, you will agree that it is not very convenient to climb into the system unit every time to turn on the PC. If you do not have the necessary experience, then it is better not to take risks, but to seek help from professionals.

Using the keyboard

The keyboard is one of the most effective devices that allows you to interact with the computer and use all its capabilities. In addition, not all users know that using this device you can not only turn off the PC, but also turn it on. However, it’s worth noting right away that only a keyboard with a PS/2 interface is suitable for inclusion. More modern models devices that use a USB connector to synchronize with the system unit will not allow you to achieve your plans.

If you have an input device with the required interface at your disposal, then to control the computer's power using it, you will need to configure hot keys. To do this, you can use both single keys and their combinations. For example, it could be a spacebar or Ctrl+Esc. After saving the changes made to the settings and restarting the computer, all changes will take effect.

For settings you will need to enter the BIOS using standard key, after which you need to go to the Power Management Setup tab, where you will need to set the default keyboard in the line for selecting a device to launch. This will solve the problem of turning on the computer when the power button is faulty, without replacing it.

Design features

The power button has a very fragile design, so it breaks down very often. If you bought a cheap system unit made in China, then the power button may have an even shorter lifespan and fail much earlier. Therefore, when purchasing ready-made desktop system or self-assembly When purchasing a computer for components, it is necessary to pay great attention to the quality of all elements and components of the PC, so as not to regret the choice later. Currently on the market computer components There are many brands producing high-quality cases and power supplies, so there will be no problems with the choice.

Precautions for diagnosis and repair work

If you decide to look for a fault and repair the system unit yourself, without the help of a professional, then you must follow basic safety rules so as not only to avoid getting hurt yourself, but also to avoid causing even more harm to your computer. The main requirement when performing any work is complete blackout system specialist To do this, you need to unplug the power cable. This must be done even if the power supply has special button for de-energizing.

This simple rule will help you avoid many unpleasant situations. Of course, you won’t get an electric shock, but imagine what will happen to your fingers if the system unit starts up, and at that moment you accidentally put them into the cooling fan? Or you will be unscrewing bolts and one of them will fall on the motherboard and short out something, causing motherboard or some other device may burn out.

In conclusion

So, if you have read the article to this point, it means not only that it has come to an end, but also that you now know how to identify a faulty computer power button, repair it, and also know how to start a PC without it buttons. Finally, it is worth noting that the article discussed only basic measures to eliminate this problem. There are several other ways to fix the problem with the power button, however, they require the user to have certain skills and experience working with electronics, so it will be quite difficult for novice users to cope with them. To never have problems with your computer, assemble your system unit exclusively from high-quality components.

computerology.ru

Modern computer cases sometimes they have a very attractive appearance. Manufacturers are trying to bring more and more necessary connectors to the front panel, these include USB 3.0, FireWire ports, audio connectors, card readers, etc. However, there are often cases when some elements fail, for example, sometimes the power button in cheap cases breaks. It is almost impossible to repair it. How to turn on your computer without a button, read below

Difficulty level: Easy

What you will need:

Small screwdriver.

1 step

Step 2

In the vast majority of motherboards, these connectors consist of two rows of pins, usually 9 pins.

Computer without case

Please note that each motherboard manufacturer has different pin layouts, so it would be better to look at the motherboard manual. The contact diagrams of the most common motherboards are shown in the figure (the contacts that need to be closed are indicated in red).

Step 3

Request instructions

Self-assembly of your own personal computer sometimes it can drag on for a very long time. If everything is quite simple and clear with connecting the main devices to the PC, then connecting the motherboard and buttons or indications may seem like a very complicated process. Below we will look at all the main nuances of connecting this node to the motherboard.

Preparing to connect

We invite you to familiarize yourself with the list of main preparatory steps that will greatly simplify the procedure for connecting the start and reboot keys of the computer to its main board:

The inscriptions that are present on the main board and connectors will help you navigate when searching for the necessary elements. For example, near the port responsible for the power and reboot keys, either “F_PANEL” or “PANEL1” will be written.

Front Panel Interface Connection

If you have carefully studied the layout of your computer's motherboard, and also found all the necessary connectors and ports, then it is time to compare them with each other.

Starting the computer without pressing Power - we do tricks

This procedure should begin with the connectors that are responsible for turning on and rebooting the system. Their bodies bear the inscriptions “POWERSW” and “RESTARTSW”, respectively. We connect these connectors with pins, next to which there are the following designations: “PWRBTN” and “RESET”.

Indicator showing HDD operation, has a connector labeled “HDDLED”. It must be plugged into the “HDLED –” plug.

If you accidentally reverse the polarity of the indicators, no fatal consequences will occur. To solve this problem, you will need to connect the connector to the other side.

Connection features on Asus and Gigabyte boards (video)

The provided video very clearly shows the process of connecting power buttons to the motherboard and rebooting the system (using the example of boards from manufacturers such as ASUS and GIGABYTE).

There is nothing complicated about connecting the front panel to the main PC board. The most important thing is to read the documentation in detail and carefully examine all the inscriptions on the motherboard. Also, do not forget to observe the polarity when connecting connectors to the port pins, otherwise the LED indicators will not work.

Modern computer cases sometimes have a very attractive appearance. Manufacturers are trying to bring more and more necessary connectors to the front panel, these include USB 3.0, FireWire ports, audio jacks, card readers, etc.

The computer won't turn on! The notorious POWER button!

However, there are often cases when some elements fail, for example, sometimes the power button in cheap cases breaks. It is almost impossible to repair it. How to turn on your computer without a button, read below

Instructions

Difficulty level: Easy

What you will need:

Basic knowledge of English.
Motherboard manual.
Small screwdriver.

1 step

Turn off the computer's power. Remove the left side cover. Next you will see the hardware of your PC, for which you once paid a lot of money. At the bottom of the motherboard on the right, you will see connectors for connecting power wires, reboot wires and HDD indicators.

Step 2

In the vast majority of motherboards, these connectors consist of two rows of pins, usually 9 pins. Please note that each motherboard manufacturer has different pin layouts, so it would be better to look at the motherboard manual. The contact diagrams of the most common motherboards are shown in the figure (the contacts that need to be closed are indicated in red).

Step 3

Find the power cable (POWER two twisted wires) and carefully disconnect it from the motherboard. As a result of this you will see two pins. Connect the system unit to the network. Connect these two pins with a metal object, such as a small screwdriver. Don't be afraid, you won't get an electric shock, the voltage there is very low. After closing the contacts, the computer should start and boot. If this does not happen, then most likely you have closed the wrong contacts.

Do not do this if the system unit is under warranty.
Use this method Only as a last resort, it is better to replace the case with a new one.

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What is the reason?

Looking for the source of the problem

Checking the connection

Internal inspection

How to check the power supply

If all else fails

You can determine whether the BIOS is active by removing all RAM modules from the slots and then turning on the motherboard (the processor with a cooler, video and keyboard must be connected to it).

Turn on the motherboard without a button

If the firmware is saved, system speaker should beep. In addition, replace the battery for the CMOS chip, as when it runs out, some boards may not work.

You are trying to turn on the computer, press Power button and nothing happens: not a single light is on, not a single sound is heard from the system unit. It's like his cord has been pulled out of the socket. Why did your iron friend stop turning on? Is it possible to solve the problem on my own?

What is the reason?

Lack of response to pressing the power button indicates problems with the PC's power supply. This happens due to:

lack of voltage in the electrical outlet;
malfunction of the device through which the computer receives power (uninterruptible power supply, network filter);
broken electrical cable or bad contact at the places where it is connected;
power supply malfunction ( desktop computer in this case, it stops working immediately, and the laptop only stops working when the battery is completely discharged);
poor contact in the ATX connector with which the power supply is connected to the motherboard;
sticking and breaking of the Power button on the system unit, as well as blocking this button with a static charge;
malfunctions of power circuits and components on the motherboard that are responsible for turning on the PC;
poor contact in internal connectors and slots;
short circuit in devices.

Looking for the source of the problem

Checking the connection

The first thing you should check is whether the power source and devices connected between the system unit and the outlet are working. Try briefly plugging the computer into another, working outlet, without using a surge protector or uninterruptible power supply. If it still does not turn on, check the electrical cord for kinks (bend it different sides in the places of attachment to the connectors), or better yet, replace it with another one that is known to work.

Make sure that the cord fits tightly into the socket and there are no traces of heating (melting and yellow spots) at the connection point, and also that the power supply itself is plugged into the mains (the key is in the ON position).

Lastly, check that the Power button presses well. You have already removed the static charge from it when you turned the PC off and on again.

Internal inspection

If everything is in order outside, we proceed to inspection. internal devices. After opening the system unit, look to see if the standby power indicator on the motherboard lights up (if there is one, of course). The duty LED lights up when the computer is powered from the mains and voltage is applied to the board. If the indicator is on, it means the power supply is working (although it’s not a fact that it’s working as expected).

If the duty LED does not light up or is missing, do the following:

we make sure that the contacts in the connectors are reliable (we try to move the devices and check whether the internal cables are coming loose).
check whether the Power button is connected (perhaps your computer does not turn on due to a broken front panel wire);
We try to start the power supply separately.

How to check the power button

Turn off the power to the computer and disconnect the Power button wires from the front panel connector of the motherboard (the connection diagram can be found in the manual for it).
Turn on the PC power and close the Power_switch contacts with the tip of a screwdriver. If the machine starts working, the reason for not turning on lies in a damaged button. To solve the problem, it is enough to restore the integrity of its contacts and wires.

How to check the power supply

You can turn on the power supply without a button by closing the PS_ON and Gnd (ground) contacts on the ATX block; they correspond to the green and any of the black wires. Before doing this, unplug the power supply from the outlet, disconnect it from the computer devices and connect it to a load, for example, a non-working hard drive or a 40-watt light bulb, otherwise the experiment will fail. Then turn it on again.

You can close the contacts with any metal object using tweezers, a piece of wire or a paper clip. If the power supply is operational, it will start; operating voltages of 5 v (red and purple wires), 12 v (yellow wire) and 3.3 v (orange wire) will appear on the connectors, and the fan will spin in the unit itself.

You can check the quality of the connection in the ATX connector by touch 10-15 minutes after turning on the computer; if the connector connected to the board gets hot, it means the contact is broken. In this condition, the power supply cannot be used; the block must be replaced.

If the power supply works separately from the motherboard, but when you plug it in it immediately turns off, it means that a short circuit has occurred in one of the PC devices. You can find this device using the one-by-one disconnection method.

If all else fails

We check devices by disconnecting and replacing

If previous actions The computer did not turn on, it did not give any results, it is necessary to understand the devices in more detail. It is better to do this on a table in good lighting, removing the components from the PC case. When removing each item, carefully inspect it for evidence of overheating artifacts (they look like darkening or yellow spots), melting and deformation of contacts, chips of surface elements, swollen and leaking capacitors. Such defects may be hidden under the radiators of the cooling system, so they must be carefully removed.

A device that has artifacts is most likely the cause of the failure. If the computer starts normally without it, it means the culprit has been found, replace it or give it back problematic device for repairs.

If you have compatible spare parts at home or friends who are ready to help, it is advisable to check each of the components by replacing it.

The worst situation is with a faulty motherboard. If it doesn’t start, you won’t be able to check the operation of other devices.

Why is the motherboard not working?

The motherboard may not turn on due to:

malfunction of the Multi I/O (multicontroller) chip that controls the switching process;
inoperability of the south and sometimes north bridge;
failure of switching circuit elements or broken tracks;
short circuit in any component of the board;
completely crashed BIOS firmware.

Failed components can sometimes be detected with bare hands.

How to turn on your computer if the power button is broken

Connect the board to a known working unit power supply, turn it on and, without pressing the Power button (without closing the contacts), carefully check the temperature of the components with your hand. The heating of a faulty part during standby power can be very strong (don’t get burned!). At the same time, what works normally will remain cold or become barely noticeably warmer. Heating in the control room of one of the bridges may be a sign of a short circuit in it or a malfunction of elements in its power supply circuit.

There's probably nothing more to check. A board with a crashed BIOS and suspected other faults must be taken in for repair or replaced with a new one.

You try to turn on the computer, press the Power button and nothing happens: not a single light comes on, not a single sound is heard from the system unit. It's like his cord has been pulled out of the socket. Why did your iron friend stop turning on? Is it possible to solve the problem on my own?

What is the reason?

Lack of response to pressing the power button indicates problems with the PC's power supply. This happens due to:

lack of voltage in the electrical outlet;
malfunction of the device through which the computer receives power (uninterruptible power supply, surge protector);
broken electrical cable or poor contact at its connection points;
malfunction of the power supply (a stationary computer stops working immediately, and a laptop only when the battery is completely discharged);
poor contact in the ATX connector with which the power supply is connected to the motherboard;
sticking and breaking of the Power button on the system unit, as well as blocking this button with a static charge;
malfunctions of power circuits and components on the motherboard that are responsible for turning on the PC;
poor contact in internal connectors and slots;
short circuit in devices.

Looking for the source of the problem

Checking the connection

The first thing you should check is whether the power source and devices connected between the system unit and the outlet are working. Try briefly plugging the computer into another, working outlet, without using a surge protector or uninterruptible power supply. If it still does not turn on, check the electrical cord for kinks (bend it in different directions at the places where it is attached to the connectors), or better yet, replace it with another one that is known to work.

Lastly, check that the Power button presses well. You have already removed the static charge from it when you turned the PC off and on again.

Internal inspection

If everything is in order outside, we move on to inspecting the internal devices. After opening the system unit, look to see if the standby power indicator on the motherboard lights up (if there is one, of course). The duty LED lights up when the computer is powered from the mains and voltage is applied to the board. If the indicator is on, it means the power supply is working (although it’s not a fact that it’s working as expected).

If the duty LED does not light up or is missing, do the following:

we make sure that the contacts in the connectors are reliable (we try to move the devices and check whether the internal cables are coming loose).
check whether the Power button is connected (perhaps your computer does not turn on due to a broken front panel wire);
We try to start the power supply separately.

How to check the power button

Turn off the power to the computer and disconnect the Power button wires from the front panel connector of the motherboard (the connection diagram can be found in the manual for it).
Turn on the PC power and close the Power_switch contacts with the tip of a screwdriver. If the machine starts working, the reason for not turning on lies in a damaged button. To solve the problem, it is enough to restore the integrity of its contacts and wires.

How to check the power supply

You can turn on the power supply without a button by closing the PS_ON and Gnd (ground) contacts on the ATX block; they correspond to the green and any of the black wires.

How to turn on a computer without a button

Before doing this, unplug the power supply from the outlet, disconnect it from the computer devices and connect it to a load, for example, a non-working hard drive or a 40-watt light bulb, otherwise the experiment will fail. Then turn it on again.

If all else fails

We check devices by disconnecting and replacing

If the previous actions did not produce results and the computer still does not turn on, you need to understand the devices in more detail. It is better to do this on a table in good lighting, removing the components from the PC case. When removing each unit, carefully inspect it for artifacts, traces of overheating (they look like darkening or yellow spots), melting and deformation of contacts, chipped surface elements, swollen and leaking capacitors. Such defects may be hidden under the radiators of the cooling system, so they must be carefully removed.

A device that has artifacts is most likely the cause of the failure. If the computer starts normally without it, then the culprit has been found, replace it or send the problematic device for repair.

If you have compatible spare parts at home or friends who are ready to help, it is advisable to check each of the components by replacing it.

The worst situation is with a faulty motherboard. If it doesn’t start, you won’t be able to check the operation of other devices.

Why is the motherboard not working?

The motherboard may not turn on due to:

malfunction of the Multi I/O (multicontroller) chip that controls the switching process;
inoperability of the south and sometimes north bridge;
failure of switching circuit elements or broken tracks;
short circuit in any component of the board;
completely crashed BIOS firmware.

You can determine whether the BIOS is active by removing all RAM modules from the slots and then turning on the motherboard (the processor with a cooler, video and keyboard must be connected to it). If the firmware is saved, the system speaker should beep. In addition, replace the battery for the CMOS chip, as when it runs out, some boards may not work.

Failed components can sometimes be detected with bare hands. Connect the board to a known-good power supply, turn it on and, without pressing the Power button (without closing the contacts), carefully check the temperature of the components with your hand. The heating of a faulty part during standby power can be very strong (don’t get burned!). At the same time, what works normally will remain cold or become barely noticeably warmer. Heating in the control room of one of the bridges may be a sign of a short circuit in it or a malfunction of elements in its power supply circuit.

There's probably nothing more to check. A board with a crashed BIOS and suspected other faults must be taken in for repair or replaced with a new one.