How to start a computer without a power button through. Front computer panel: how to connect the power button, reboot, connectors. Check for service power supply

A rather common problem is the absence of a reaction to press the computer's power button. In other words, when you, as usual trying to turn on the computer by pressing the button, nothing happens. In this article I will be described possible reasons Such a computer behavior.

The reasons

So, let's begin. Here is a list of possible reasons:

  1. No voltage in the electrical outlet;
  2. Damage or non-contact supply of the feed wire coming from the outlet to the computer power supply;
  3. The power supply button is turned off;
  4. Breakdown of the power on the computer or its wires itself;
  5. Failure of the power supply;
  6. Out of system motherboard.

The first thing that is worth starting to diagnose this malfunction is to make sure that there is a voltage in the electrical outlet. It is not necessary to do this tester. It is enough to include in it some other electrical device and make sure that it works.

Next, you need to check whether the black feed wire is securely included in the electrical outlet and in the power supply, as well as make it an external inspection for damage and fractures, especially from the ends of both connectors. To do this, pull it out its end from the computer's power supply and insert back.

The next step should pay attention to the computer power supply. To do this look at rear part The system unit into the place where the feed cable comes from the outlet.

If there is a button - the switch, then it must be in the on state.

Turn button on the power supply

After that, you need to try to start the computer without the power button.

Turn off the computer and remove the side cover of the system unit. Further we are looking for a block of contacts where the power button is connected, reboot, indicators of inclusion and work hard disk. It is usually located in the lower right corner of the board.

Location Pads Pins on the Motherboard Computer Enable Button

When they found her removed from it all contacts. To do this, drain them for the wires up, after writing or photographed their location.

Now we take a screwdriver, a knife or other such a metal object and try to close the contacts that are signed as "PWR_BTN" or "WP + WP-" or "PWR SW" just touching them with a screwdriver at the same time.

How to enable a computer without a power button - closer contacts with a screwdriver

If you can not find these contacts on the inscriptions under it or you have an inscriptions under them, there is simply missing, then try to close the screwdriver all the neighboring contacts in turn.

If the computer did not turn on, then the problem is not in the power button.

Now to check the power supply, you need to try to install a worker working, lent it from friends or acquaintances, or check your block on another computer.

In the event that the power supply turned out to be integer, the only remaining cause will be an inoperative motherboard, which in most cases will have to be changed, unless there are no capacitors that can be replaced on it.

This is how the swollen capacitors on the motherboard look

Any device is subject to physical wear, as a result of which it can stop working. This also applies to stationary computers with which some problems constantly arise. Very often in the system blocks, the power button fails, without which the computer starts very difficult. So how to be in a situation where you clicked on the power button, and in response, nothing happened?

general information

Sometimes there is such a situation at which it is impossible to turn on the stationary PC. In this case, the network is present on the network, a LED is lit on the motherboard, which signals its performance, however, the device does not respond to pressing the power button. Most likely, this is due to its failure. So what to do in such a situation and can I somehow start the computer?

Such a breakdown may be associated with a huge number of factors, some of which can be eliminated independently, and for others it may be necessary to help professionals. This article will consider the most common causes of breakage, methods to eliminate them, as well as some ways to start the system unit without a power button.

Diagnostics

The system unit is a very complex device consisting of various components, each of which may fail. Therefore, if you encountered any problem, first of all, you should try to understand what is the problem. For the power of the system unit corresponds to the power supply, which is very sensitive to voltage drops. Thus, the diagnosis of malfunction is to start with it. To do this, it is necessary to turn off all the BP wires from the motherboard, optical drive, Winchester I. graphic adapter. Further, with the help of the stationery clips, you need to close two contacts on the widest adapter that is responsible for feeding the motherboard. In most models of BP, these contacts have green and black color. If after the closure, the cooling cooler of the power supply was not started, then this signals the device output. If everything has earned, then most likely the problem is the inclusion button.

How to turn on the PC without a button?

If the start button broke on your system unit, then you should not despair because the computer can be turned on without it. The power button is located on the front panel, which connects to the system board. On the maternal to connect the panel, special connectors are provided that are located in its lower right corner and having a Power Switch signature. When you find this connector, you need to turn off all the wires, after which you need to close two contacts signed by PWR SW using a screwdriver.

If after performing the actions described above system unit It will start, the problem really lies in the power button. Eliminate this problem You can in several ways:

- make a complete replacement of the power button;

- connect the reboot button to the inclusion connectors;

- Take a computer to repair to the service center.

The optimal option will be full replacement Withdrawn the button, because without it, the computer will not work normally. After all, you see that each time you climb into the system unit to turn on the PC is not entirely convenient. If you do not have the necessary experience, it is better not to risk, but to seek help to professionals.

Using the keyboard

The keyboard is one of the most efficient devices that allows you to interact with the computer and use all its capabilities. In addition, not all users know that with the help of this device, you can not only turn off the PC, but also include it. However, it should immediately note that only the keyboard with the PS / 2 interface is suitable for switching on. More modern models that use the USB connector to synchronize with the system unit will not make it possible to carry out.

If the input device with the required interface is at your disposal, then to control with its help computer power, you will need to configure hotkeys. To do this, you can use both single keys and combinations thereof. For example, it can be a space or Ctrl + Esc. After saving changes made to settings and restart the computer, all changes will take effect.

For settings, you will need to go to the BIOS using the standard key, then you need to go to the Power Management Setup tab, where you need to set the default keyboard, in the device selection string to start. This will solve the problem of inclusion of a computer when the power button has failed, without replacing it.

Constructive features

The power button has a very fragile design, so it often fails. If at the same time a cheap system unit of Chinese production was purchased, the power button may have an even less operational resource and fail significantly earlier. So when buying a ready-made desktop system or self-assembly Computer on components It is necessary to pay great attention to the quality of all the elements and components of the PC, so that it is not regretting the choice made. To date, there are many brands engaged in the production of high-quality buildings and power supplies, therefore, there will be no problems with the choice of any problems.

Precautions for diagnostics and repair work

If you decide to search for a malfunction and repair the system unit yourself, without the help of a professional, then it is necessary to comply with the elementary safety regulations so that not only not to suffer from yourself, but not to cause a computer even more harm. The main requirement when performing any work is complete de-energization of the system. To do this, you need to turn off the power cord from the network. It is necessary to do this even if a special button for de-energization is provided on the power supply.

This simple rule will help to avoid many unpleasant situations. Current, of course, you will not hit you, but imagine what will happen to your fingers if the system unit starts, and at this moment will accidentally shove them into the cooling fan? Or you will unscrew the bolts, and one of them will fall on the motherboard and closes something, resulting in motherboard Or any other device can burn.

In conclusion

So, if you read the article before this place, this means not only what it approached its completion, but also that now you know how to determine the malfunction of the computer's turning on, perform its repair, and also know how to run a PC without this Buttons. Finally, it is worth noting that only basic measures to eliminate this problem were considered in the article. There are several other ways to eliminate the problem with the inclusion button, however, they require the presence of certain skills and experience of working with electronics, so it will be quite difficult to cope with them. To never have problems with a computer, collect a system unit exclusively from high-quality components.

Difficulty level: easy

What do you need:

  • Basic knowledge of English.
  • Guide to the motherboard.
  • Little screwdriver.

1 step

Disconnect the power of the computer. Remove the left side cover. Next, you will see the filling of your PC, for which considerable money paid once. At the bottom of the motherboard on the right, you will see connectors for connecting power wiring, rebooting and HDD indicators.

2 step

In the overwhelming majority of motherboards, these connectors consist of two rows of pins, usually 9 contacts. Please note that each manufacturer's manufacturer has contacts are located differently, so it will be better to look into the manual to the motherboard. The contact circuits of the most common materials are shown in the figure (the contacts that need to be closed are marked with red).

3 Step

Find the power wire (POWER two twisted wiring) and gently disconnect from the motherboard. As a result, you will see two pins. Turn on the system block into the network. Close these two pin with a metal object, such as a small screwdriver. Do not be afraid, current will not hit you, the voltage is very small there. After the contacts are closed, the computer must start and boot. If this did not happen, then most likely you closed not those contacts.

  • Do not do this if the system unit is warranty.
  • Use this method Only in extreme cases, it is better to replace the housing to the new one.

Modern computer enclosures sometimes have a very attractive appearance. Manufacturers try to bring more and more necessary connectors to the front panel, this is USB 3.0, FireWire ports, audio connections, card readers, etc. However, there are no cases when some elements fail, for example, the inclusion button is sometimes breaking in cheap housings. It is almost impossible to repair it. How to enable a computer without a button, read below

Difficulty level: easy

What do you need:

  • Little screwdriver.

1 step

2 step

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

Computer without housing

Please note that each manufacturer's manufacturer has contacts are located differently, so it will be better to look into the manual to the motherboard. The contact circuits of the most common materials are shown in the figure (the contacts that need to be closed are marked with red).

3 Step

Request instructions


Independent assembly of your personal computer Sometimes it can delay on a very long time. If everything is simple and clear with the connection of the main devices to the PC, then the connection of the motherboard and buttons or indication may seem very complex process. Below we will look at all the main nuances of connecting this node to the motherboard.

Preparation for connection

We invite you to familiarize yourself with the list of basic preparatory stages that will significantly simplify the procedure for connecting the launch keys and restart the computer to its main board:


Inscriptions that are present on the main board and connectors will help you navigate when searching for the necessary items. For example, near the port that is responsible for the key and reboot keys will be written either "F_PANEL" or "Panel1".

Connecting the front panel interface

If you 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.

Running a computer without pressing Power - do focuses

Start this procedure follows from connectors that are responsible for including and rebooting the system. The inscriptions "Powersw" and "RestartSw" are applied on their buildings, respectively. We connect these connectors with pin, near which the following notation is present: "PWRBTN" and "RESET".

Indicator displaying hDD workhas a connector with the signature "HDDLED". It must be plugged into the "HDLED -" plug.

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

Features of the connection on Asus and Gigabyte boards (video)

The process of connecting to the motherboard buttons and reboot system (on the example of boards from manufacturers such as Asus and Gigabyte) is very clearly shown in the video provided.

There is nothing complicated in connecting the front panel to the main PC card. The most important thing is to get acquainted in detail with the documentation and carefully inspect all the inscriptions on the motherboard. Also, do not forget to observe the polarity when connecting the connector to the port pin, otherwise the LED alarms will not work.

Modern computer enclosures sometimes have a very attractive appearance. Manufacturers try to display more and more necessary connectors to the front panel, this is USB 3.0, FireWire ports, audio connections, card readers, etc.

The computer does not turn on! Notor Power Button!

However, there are no cases when some elements fail, for example, sometimes the inclusion button in cheap housings breaks. It is almost impossible to repair it. How to enable a computer without a button, read below

Instruction

Difficulty level: easy

What do you need:

  • Basic knowledge of English.
  • Guide to the motherboard.
  • Little screwdriver.

1 step

Disconnect the power of the computer. Remove the left side cover. Next, you will see the filling of your PC, for which considerable money paid once. At the bottom of the motherboard on the right, you will see connectors for connecting power wiring, rebooting and HDD indicators.

2 step

In the overwhelming majority of motherboards, these connectors consist of two rows of pins, usually 9 contacts. Please note that each manufacturer's manufacturer has contacts are located differently, so it will be better to look into the manual to the motherboard. The contact circuits of the most common materials are shown in the figure (the contacts that need to be closed are marked with red).

3 Step

Find the power wire (POWER two twisted wiring) and gently disconnect from the motherboard. As a result, you will see two pins. Turn on the system block into the network. Close these two pin with a metal object, such as a small screwdriver. Do not be afraid, current will not hit you, the voltage is very small there. After the contacts are closed, the computer must start and boot. If this did not happen, then most likely you closed not those contacts.

  • Do not do this if the system unit is warranty.
  • Use this method only as a last resort, better replace the housing to the new one.

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What is the reason?

We are looking for a source

Connection check

Internal inspection

How to check the power supply

If nothing helped

Determine the livestock BIOS can be removed from the slots of all rAM modules With the subsequent power on the motherboard (the processor with a cooler, video and keyboard must be connected to it).

Turn on your motherboard without a button

If the firmware is preserved, the system speaker must be written. In addition, replace the CMOS chip feed battery, as when it sits down, some boards may not work.

You are trying to turn on the computer, press the POWER button and does not happen: no light bulb is lit, no sound is heard from the system unit. As if his cord will be pulled out of the outlet. Why is your iron friend stopped turning on? Is it possible to solve the problem on your own?

What is the reason?

The absence of a reaction to pressing the power button indicates problems in the PC power supply. This happens because of:

  • lack of voltage in an electrical outlet;
  • device malfunctions through which the computer gets power (uninterruptible, network filter);
  • electric cable cliff or poor contact in the locations of it;
  • power supply faults (stationary computer ceases to work immediately, and the laptop is only with the full discharge of the battery);
  • poor contact in the ATX pad, which the power supply is connected to the motherboard;
  • sticking and breakdown POWER button on the system unit, as well as blocking this button with a static charge;
  • malfunctions of power chains and nodes on the motherboard, which are responsible for including PCs;
  • poor contact in internal connectors and slots;
  • short circuit in devices.

We are looking for a source

Connection check

The first thing to check is whether the power supply and the device connected between the system unit and the socket work. Try briefly turn on the computer to another, a good socket without using a network filter and uninterrupted. If it still does not turn on, check the electrical cord for the presence of a challenges (time for it in different directions in places of attachment to the connectors), and better replace on the other, knowingly worker.

Make sure that the cord is tightly sits in the nest and there are no traces of heating (melting and yellow spots), as well as the BP itself is included in the power grid (key in the ON position).

Last but, check if the POWER button is well pressed. The static charge from it you already removed when turned off and turned on the PC into the outlet.

Internal inspection

If everything is in order outside, go to inspection of internal devices. Opening the system unit, see if the duty power supply indicator on the motherboard (of course, if it is). The duty lion is lit when the computer is powered from the power supply and voltage is applied to the fee. If the indicator is on, it means that the power supply is operating (although not the fact that as it should be).

If the duty's LED does not burn or not, we do the following:

  • we are convinced of the reliability of contacts in the connectors (we try to move the devices and check whether the internal cables do not depart).
  • we check whether the POWER button is connected (perhaps you do not turn on the computer due to the front panel wiring break);
  • we try to start the power supply separately.

How to check the power button

  • Make a computer and disconnect the POWER buttons from the front panel connector of the motherboard (the connection scheme can be found from the manual to it).
  • Turn on PC power and close the contacts of the Power_Switch storing screwdriver. If the machine earns the reason for the disconnection rooted in a spoiled button. To solve the problem, it is enough to restore the integrity of its contacts and wires.

How to check the power supply

Turn on the power supply without a button. You can closure to PS_ON and GND (Earth) contacts on the ATX pad they correspond to green and any of the black wires. Turn off the power supply from the socket before this, disconnect from the computer devices and connect to the load, for example, to a non-working hard disk or a 40-watt light bulb, otherwise the experience will fail. Then turn on again.

You can close contacts by any metal object of tweezers, a piece of wire or clip. If the power supply is operational, it will start on the connectors will appear 5 V operating voltages (red and purple wires), 12 V (yellow wire) and 3.3 V (orange wire), and the fan will be completed in the block itself.

You can check the quality of the connection in the ATX pad, you can touch in 10-15 minutes after turning on the computer if the block connected to the board is heated, it means that the contact is broken. In such a state, the power supply cannot be used, the block must be replaced.

If the power supply unit works separately from the motherboard, and it is necessary to connect immediately off, then a short circuit happened in some of the PC devices. You can find this device by alternately disconnecting.

If nothing helped

Check the devices by disconnection and replacement

If the previous actions of the result did not give the computer and did not turn on, you need to easily understand the devices in more detail. It is better to do this on the table with good lighting, drove out the components from the PC housing. Removing each to do, carefully examine it for the presence of artifacts of overheating tracks (look like darkening or yellow spots), melting and deformities of contacts, scholars of surface elements, discontinued and processed capacitors. Such defects can be hidden under the radiators of the cooling system, so they must be taken carefully.

The device on which the artifacts are most likely the cause of the failure. If the computer started normally without it, it means that the culprit is found replace or give a problematic device to repair.

If there is a house compatible spare parts or ready to help friends, each of the components are desirable to check the replacement.

Worst things are the fault of the motherboard. When it does not start, the operation of other devices will not work.

Why the motherboard does not work

The motherboard may not be included due to:

  • multi I / O fault (multi-controller) chip, which manages the inclusion process;
  • the inoperability of the southern, and sometimes the northern bridge;
  • failure of the elements of the circuit of the inclusion or cliff of the tracks;
  • short circuit in any component board;
  • fully flying BIOS firmware.

The components failed sometimes manage to find bare hands.

How to enable a computer if the power button is broken

Connect the board to a well-serviceable power supply unit, turn on to the power grid and without pressing the POWER button (not closer contact), carefully check the temperature of the components. Heating of a defective part at duty duty can be very strong (do not burn!). At the same time, what works fine will remain cold or barely warmer. Heating in the duty of one of the bridges can be a sign of a short circuit in it or malfunction of elements in the circuit of its power supply.

More so, perhaps, not to check anything. The fee with flying BIOS and suspicion of other faults must be attributed to the repair or replace to a new one.

You are trying to turn on the computer, press the POWER button and does not happen: no light bulb is lit, no sound is heard from the system unit. As if his cord will be pulled out of the outlet. Why is your iron friend stopped turning on? Is it possible to solve the problem on your own?

What is the reason?

The absence of a reaction to pressing the power button indicates problems in the PC power supply. This happens because of:

  • lack of voltage in an electrical outlet;
  • malfunction of the device through which the computer receives power (uninterruptible, network filter);
  • electric cable cliff or poor contact in the locations of it;
  • power supply faults (stationary computer ceases to work immediately, and the laptop is only with the full discharge of the battery);
  • poor contact in the ATX pad, which the power supply is connected to the motherboard;
  • sticking and breakdown POWER button on the system unit, as well as blocking this button with a static charge;
  • malfunctions of power chains and nodes on the motherboard, which are responsible for including PCs;
  • poor contact in internal connectors and slots;
  • short circuit in devices.

We are looking for a source

Connection check

The first thing to check is whether the power supply and the device connected between the system unit and the socket work. Try briefly turn on the computer to another, a good socket without using a network filter and uninterrupted. If it still does not turn on, check the electrical cord for the presence of a challenges (time for it in different directions in places of attachment to the connectors), and better replace on the other, knowingly worker.

Make sure that the cord is tightly sits in the nest and there are no traces of heating (melting and yellow spots), as well as the BP itself is included in the power grid (key in the ON position).

Last but, check if the POWER button is well pressed. The static charge from it you already removed when turned off and turned on the PC into the outlet.

Internal inspection

If everything is in order outside, go to inspection of internal devices. Opening the system unit, see if the duty power supply indicator on the motherboard (of course, if it is). The duty lion is lit when the computer is powered from the power supply and voltage is applied to the fee. If the indicator is on, it means that the power supply is operating (although not the fact that as it should be).

If the duty's LED does not burn or not, we do the following:

  • we are convinced of the reliability of contacts in the connectors (we try to move the devices and check whether the internal cables do not depart).
  • we check whether the POWER button is connected (perhaps you do not turn on the computer due to the front panel wiring break);
  • we try to start the power supply separately.

How to check the power button

  • Make a computer and disconnect the POWER buttons from the front panel connector of the motherboard (the connection scheme can be found from the manual to it).
  • Turn on PC power and close the contacts of the Power_Switch storing screwdriver. If the machine earns the reason for the disconnection rooted in a spoiled button. To solve the problem, it is enough to restore the integrity of its contacts and wires.

How to check the power supply

Turn on the power supply without a button. You can closure to PS_ON and GND (Earth) contacts on the ATX pad they correspond to green and any of the black wires.

How to enable a computer without a button

Turn off the power supply from the socket before this, disconnect from the computer devices and connect to the load, for example, to a non-working hard disk or a 40-watt light bulb, otherwise the experience will fail. Then turn on again.

You can close contacts by any metal object of tweezers, a piece of wire or clip. If the power supply is operational, it will start on the connectors will appear 5 V operating voltages (red and purple wires), 12 V (yellow wire) and 3.3 V (orange wire), and the fan will be completed in the block itself.

You can check the quality of the connection in the ATX pad, you can touch in 10-15 minutes after turning on the computer if the block connected to the board is heated, it means that the contact is broken. In such a state, the power supply cannot be used, the block must be replaced.

If the power supply unit works separately from the motherboard, and it is necessary to connect immediately off, then a short circuit happened in some of the PC devices. You can find this device by alternately disconnecting.

If nothing helped

Check the devices by disconnection and replacement

If the previous actions of the result did not give the computer and did not turn on, you need to easily understand the devices in more detail. It is better to do this on the table with good lighting, drove out the components from the PC housing. Removing each to do, carefully examine it for the presence of artifacts of overheating tracks (look like darkening or yellow spots), melting and deformities of contacts, scholars of surface elements, discontinued and processed capacitors. Such defects can be hidden under the radiators of the cooling system, so they must be taken carefully.

The device on which the artifacts are most likely the cause of the failure. If the computer started normally without it, it means that the culprit is found replace or give a problematic device to repair.

If there is a house compatible spare parts or ready to help friends, each of the components are desirable to check the replacement.

Worst things are the fault of the motherboard. When it does not start, the operation of other devices will not work.

Why the motherboard does not work

The motherboard may not be included due to:

  • multi I / O fault (multi-controller) chip, which manages the inclusion process;
  • the inoperability of the southern, and sometimes the northern bridge;
  • failure of the elements of the circuit of the inclusion or cliff of the tracks;
  • short circuit in any component board;
  • fully flying BIOS firmware.

You can define BIOS's ability to remove from the slots of all RAM modules with the subsequent power on the motherboard (the processor with a cooler, video and keyboard should be connected to it). If the firmware is preserved, the system speaker must be written. In addition, replace the CMOS chip feed battery, as when it sits down, some boards may not work.

The components failed sometimes manage to find bare hands. Connect the board to a well-serviceable power supply unit, turn on to the power grid and without pressing the POWER button (not closer contact), carefully check the temperature of the components. Heating of a defective part at duty duty can be very strong (do not burn!). At the same time, what works fine will remain cold or barely warmer. Heating in the duty of one of the bridges can be a sign of a short circuit in it or malfunction of elements in the circuit of its power supply.

More so, perhaps, not to check anything. The fee with flying BIOS and suspicion of other faults must be attributed to the repair or replace to a new one.