Check signal cable on the monitor what does it mean

If the monitor is faulty

If the image is completely absent, then the matrix or power microcircuit on the monitor is out of order. In this case, you will have to contact the service center for further diagnostics and troubleshooting. Most often, in a situation where the monitor does not respond in any way to the connection, you will have to think about buying a new one.

If, when the display is connected to a computer, the user observes a dim, blurry image, then the LED backlight or the power chip is faulty. When the capacitors on the board or the injector burn out, high-voltage voltage ceases to form. In this case, the LED backlight will not work properly. If the user does not have sufficient knowledge to diagnose and repair the monitor, the best solution would be to contact a service center.

Caution! There are capacitors on the monitor’s power control board that maintain the voltage of 1000V even after disconnecting the power cable.

No signal on the monitor when you turn on the computer. About computers simply

check, signal, cable, monitor

No signal on the monitor? Sometimes, when a similar problem appears on the screen, you can see a corresponding message: “No connection”, “No connection” and others. In other cases, the monitor does not show anything at all. all the user can see is a black screen. What can lead to the lack of video signal and how to fix this problem yourself? Let’s consider the main causes of this problem and how to fix them.

No signal detected on the monitor what to do?

There is no image on the monitor

If the display does not show any information (black screen), first of all check the operation of the monitor. the following actions will depend on it. To test, connect the display to another computer or laptop.

What does Check signal cable, No signal detected and “No signal” mean on the monitor

All the listed messages on the monitor screen have the same meaning: the video signal supported by this input is not being received at the input. There is one reason, but the messages depending on the specific monitor may be different.

  • Checksignalcable means “Check the signal cable” (the one that connects the monitor to the computer). It may also appear as “Check Signal. cab. “.
  • Nosignaldetected means “No signal detected”.
  • Noinputsignal says translates to “No input signal”.

If the computer is faulty

No display on the monitor may indicate a problem with the BIOS. To fix the problem, try resetting the BIOS to factory settings. Follow these steps:

  • Unplug the computer power cord and remove the side panel.
  • Move the CLRTC jumper located on the motherboard from position 1-2 to position 2-3.
  • After 15-20 seconds, move the jumper to the standard position.
  • Replace the side panel and plug in the power cord.
  • Check the image on the monitor.

Sometimes the absence of an image is due to poor contact of the RAM. To check if this is the case, follow these steps.

  • Disconnect the power cable from the system unit and the mains.
  • Unscrew the mounting screws and remove the side panel of the computer.
  • Using a soft brush, blow dust off the computer (best done outdoors).
  • Slide the clips holding the RAM and remove it from the slot.
  • Use an eraser to clean the contacts on the strip.
  • Do the same for all RAM boards.

If none of the above helps, then the malfunction is much more serious, and may be associated with a breakdown of the north or south bridge on the motherboard. At the service center, specialists will be able to more accurately determine the cause of the problem. If repair is not practical, you will have to replace the motherboard with a new one.

If there is no signal on the monitor. Troubleshooting instructions

Actions in case of signal disappearance on the monitor

Nowadays, most people have their own personal computer at home or at work. Along with its positive characteristics, this smart unit sometimes gives various malfunctions, including also serious breakdowns. The fact is that a computer is a rather complex electronic system.

Therefore, it is often difficult or impossible for people who do not understand this industry to understand why some kind of breakdown has occurred in the computer. One of such breakdowns may be the disappearance of the video signal on the monitor.

This breakdown can be absolutely trifling, or it can affect the replacement of expensive and important components of the system unit. Consider this case.

During the next boot or restart of the computer, for some unknown reason, your monitor goes blank. After multiple reboots, you see that the monitor does not light up, and the inscription “No signal, check the cable” appears in the center of the monitor.

The very first thing to do is stop panicking. In this case, it is necessary to find the cause of this breakdown or defect. In the event that there is no signal on the monitor, you must carefully check the condition of the power cables, as well as the cable connecting the monitor to the connector of the system unit. In this case, there may be different options. Maybe for some reason the plug does not mate with the connector.

General recommendations

You should not immediately look for the phone of a programmer or a computer repair technician if the message No signal detected appears on the monitor. What to do in this case? The first step is to recall all the recent actions that were performed with the computer. Perhaps, while cleaning, someone accidentally hooked on the cable, the PC was disassembled or moved. Children or curious pets can also cause breakdown. Therefore, the first recommendation is to check all wires. The problem will be solved very quickly when the cable falls into place.

It is also often recommended to simply restart the computer. The PC may not start correctly, do not forget about the sleep mode. about the latter case. below. It is possible that the problem in which the computer monitor does not turn on can be eliminated with literally one click of a button.

Self-help troubleshooting

It often happens that the PC itself is in working order, but there is no image, and the No signal detected message is displayed on the monitor. What to do in this case, why does the message appear, and what options are there to fix the problem? The reasons can be different: from the easiest and fixable on their own to complex ones, when you cannot do without the help of specialists.

You can try to fix the problem by taking the following steps:

  • The computer and the screen turn on, work normally, but after a while the message “No Signal” appears? Most likely, the PC just went into sleep mode, and in order to “wake it up”, you need to click the mouse or press the space bar. Sleep mode settings can be changed in Control Panel (Power Options icon).
  • If there is no reaction to the previous actions, you should try to restart the monitor mechanically. by pressing the “Restart” button or twice on “Shutdown”.
  • In the event that the message is still displayed, you need to restart the computer with a long press on “On / Off.” or using the emergency restart button on the system unit.
  • If you receive a message about no signal while starting a game or program, or after the computer is idle, the problem may be that the monitor does not support the resolution of the screensaver or game.

After a successful restart, you must immediately configure power management, check the compatibility of games and programs with the capabilities of your computer, and set the resolution to the value recommended by the system. In Windows 10, the above settings can be found under Settings. System. Display and Power & Sleep tabs. For Windows 7, the path is as follows: Start menu. “Control Panel”. “Power Schemes”. The changes must be saved and then rebooted again.

Self-help troubleshooting

It often happens that the PC itself is in working order, but there is no image, and the No signal detected message is displayed on the monitor. What to do in this case, why does the message appear, and what options are there to fix the problem? The reasons can be different: from the easiest and fixable on their own to complex ones, when you cannot do without the help of specialists.

You can try to fix the problem by taking the following steps:

  • The computer and the screen turn on, work normally, but after a while the message “No Signal” appears? Most likely, the PC just went into sleep mode, and in order to “wake it up”, you need to click the mouse or press the space bar. Sleep mode settings can be changed in Control Panel (Power Options icon).
  • If there is no reaction to the previous actions, you should try to restart the monitor mechanically. by pressing the “Restart” button or twice on “Shutdown”.
  • In the event that the message is still displayed, you need to restart the computer with a long press on “On / Off.” or using the emergency restart button on the system unit.
  • If you receive a message about no signal while starting a game or program, or after the computer is idle, the problem may be that the monitor does not support the resolution of the screensaver or game.

After a successful restart, you must immediately configure power management, check the compatibility of games and programs with the capabilities of your computer, and set the resolution to the value recommended by the system. In Windows 10, the above settings can be found under Settings. System. Display and Power & Sleep tabs. For Windows 7, the path is as follows: Start menu. “Control Panel”. “Power Schemes”. The changes must be saved and then rebooted again.

Other options

If the monitor says No signal detected and does not show the operating system is loading, you need to check all the screen connections to the system unit and the video card. The plug may have lost contact with the connector. Then it is not difficult to fix the breakdown: you need to insert the plug into the desired position and then restart the computer. If it was not possible to achieve a positive result, then you should further look for the reasons why No signal detected is lit on the monitor. What to do and how to diagnose the cause yourself?

READ  How to connect a second monitor to the motherboard

The troubleshooting algorithm is as follows:

  • Connecting the faulty monitor to another system unit or laptop. Does the image appear? This means that the screen is working properly, and the reasons for the message “No signal” should be looked deeper. If the picture is still missing, the monitor can be safely carried to the service center.
  • When you connect to another device, the image appears, but nothing works with the “native” system unit? Perhaps the problem is with the video card or with the motherboard. The video card has two connectors: DVI and VGA. You can try swapping the cables in the connectors and turn on the computer. If the monitor still shows No signal, then you will have to open the case of the system unit.
  • The system unit latches, as a rule, are located on the side cover, you need to carefully open them and remove the side wall. Next, you should check if the video card is securely fixed. You can remove it and clean the connectors with a regular stationery eraser. After the video card is put in place and a test run of the computer is done.
  • In the event that efforts have not brought a positive result, it is better to contact specialists. Replacement of motherboard, monitor or video card may be required.

No malfunction

Messages may differ on different monitor models. The following labels indicate the same problem:

  • check the signal cable on Russian-speaking systems;
  • going to sleep;
  • signal out of range;
  • check cable connection;
  • no signal detected (on the Benq monitor, such a sign appears most often);
  • cable disconnected and others.

Modern monitors have an automatic sleep mode to save energy. In this case, the signal may be lost, which is why these and similar inscriptions are displayed. If the computer still has not entered sleep mode, look elsewhere for a solution.

Also, any of these messages can appear when the computer is turned off and the monitor is working. As a rule, restarting the system helps.

Other options

If the monitor says No signal detected and does not show the operating system is loading, you need to check all the screen connections to the system unit and the video card. The plug may have lost contact with the connector. Then it is not difficult to fix the breakdown: you need to insert the plug into the desired position and then restart the computer. If it was not possible to achieve a positive result, then you should further look for the reasons why No signal detected is lit on the monitor. What to do and how to diagnose the cause yourself?

The troubleshooting algorithm is as follows:

  • Connecting the faulty monitor to another system unit or laptop. Does the image appear? This means that the screen is working properly, and the reasons for the message “No signal” should be looked deeper. If the picture is still missing, the monitor can be safely carried to the service center.
  • When you connect to another device, the image appears, but nothing works with the “native” system unit? Perhaps the problem is with the video card or with the motherboard. The video card has two connectors: DVI and VGA. You can try swapping the cables in the connectors and turn on the computer. If the monitor still shows No signal, then you will have to open the case of the system unit.
  • The system unit latches, as a rule, are located on the side cover, you need to carefully open them and remove the side wall. Next, you should check if the video card is securely fixed. You can remove it and clean the connectors with a regular stationery eraser. After the video card is put in place and a test run of the computer is done.
  • In the event that efforts have not brought a positive result, it is better to contact specialists. Replacement of motherboard, monitor or video card may be required.

No signal detected on the monitor: what to do and what is the reason? Possible problems and their elimination

Innovative technologies are developing at an incredible speed today. But new developments also give rise to unfamiliar problems associated, as a rule, with the settings of technology. Questions usually arise from beginners or those who, in principle, rarely use a computer. A common problem is the “No Signal” message on the monitor. To fix the situation, it is important to understand the reason. You can do this yourself.

Additional possible reasons for the absence of a signal on the monitor and possible solutions

If everything that was described above did not work, let’s move on to other possible options, also quite common:

  • If you have integrated video, try physically disconnecting the discrete graphics card, plugging a monitor into the integrated output, and see if that solves the problem. If decided, possible options: additional power is not connected to the discrete video card, hardware problems of the video card, lack of power supply unit (real power may drop due to wear and tear), problems with the slot where the video card is connected.
  • The problem in question is often described as “There is no signal on the monitor, but the computer is working.” In fact, the noise of the fans and the light of the indicators after pressing the power button does not always mean that the computer is turning on and working: in case of problems with the video card, power supply, RAM, lack of connection of some power lines to the motherboard (often during self-cleaning, assembly and disassembly, replacement of components), it can simply turn on the power on some lines, but not start, and also not send a signal to the monitor (at the same time, it will not play the OS boot sounds, if there were such before, but now there is no. this is an argument in favor of the described option). If other monitors are not shown on the same computer, this is another argument in favor of such a case. on this in a separate instruction What to do if the computer does not turn on.
  • If, when the computer starts to boot, the monitor shows something (POST / BIOS screen, logo), and then a message appears stating that there is no signal, there is probably something wrong with the image output parameters set in the operating system. True, usually in this case it is reported that Signal is out of range (signal out of range). A possible solution, if you have Windows, is to start Safe Mode and use restore points, or boot from a USB flash drive with the same OS version that you have installed, on the second screen, select “System Restore” at the bottom left and use restore points. In Windows 10, you can get into the recovery environment after two forced shutdowns (by holding the power button for a long time, although this is not the safest technique). As a last resort, you can also resort to reinstalling the OS.
  • What does Check signal cable, No signal detected and “No signal” mean on the monitor

    All the listed messages on the monitor screen have the same meaning: the video signal supported by this input is not being received at the input. There is one reason, but the messages depending on the specific monitor may be different.

  • Checksignalcable means “Check the signal cable” (the one that connects the monitor to the computer). It may also appear as “Check Signal. cab. “.
  • Nosignaldetected means “No signal detected”.
  • Noinputsignal says translates to “No input signal”.
  • The monitor writes No signal, No signal detected, Check signal cable. what does this mean and what to do?

    A frequent question from users: what to do if the monitor says “No signal”, and the computer is working, and also what the messages mean: No signal detected, Check signal cable, No input signal, “Check the signal. cable. “,” Signal not detected “and similar. The problem can occur with any type of connection: HDMI, VGA, Display Port and DVI.

    This manual details why when you turn on the computer there is no signal or “No signal detected” on the monitor, the possible causes of the problem and how to remedy the situation. First. simple options, then. more complex, but also work in many cases.

  • What does Check signal cable, No signal detected on the monitor mean?
  • Easy Ways to Fix No Signal
  • Additional reasons and solutions
  • Video instruction
  • Simple reasons that there is no signal on the monitor and how to fix it

    To begin with, about simple and fairly common variants of the causes of the problem and the corresponding methods of solution. I recommend not to skip a single item, even if you are sure that this is definitely okay.

    The cable is really disconnected or not tightly connected from the side of the monitor or video card of the computer: it can be accidentally touched, someone could move the monitor. Be sure to check, this is not such a rare case.

    If you updated your monitor or video card, and then connected the monitor using some kind of adapter or cable with different interfaces (for example, Display Port. HDMI, HDMI. VGA / DVI, and the like), remember that this cable or adapter itself may be source problems: some of them are unidirectional, some work only on certain equipment (for example, only on those video cards that support analog output via HDMI, and these have not been produced recently). The solution in this case is to try to use a connection using the same type of ports or at least connect a digital output to a digital input; you can also purchase an active signal converter. Ideally, use the original monitor cable without adapters.

  • If you connected your computer to a second monitor, projector or TV (How to connect a laptop or computer to a TV), turn off the computer, disconnect the cable leading to the TV from the video card (even if it is disconnected from the TV itself or the second monitor), turn on the computer again and check if No signal detected or Check signal cable problem is gone.
  • If in the menu of the monitor itself it is possible to select an input source (item “Input”, “Input”), open this menu and try to manually select the input used.
  • If possible, connect your monitor to another computer or laptop in order to exclude a malfunction of the monitor itself or its ports: if there is no signal on the other computer either, the problem should be looked for at the level of the monitor itself.
  • If the computer previously had a discrete video card, and now you connected the monitor to the integrated one (output on the motherboard), and received as a result “No signal”, the reason may be either the disabled integrated video in the BIOS, or the priority of the PCI-E video card set in the same place, or a processor without integrated video.
  • Some older video cards cannot output a signal to the Display Port (theoretically, the same option is possible with HDMI) until the drivers are loaded (at the beginning of the installed OS boot). What does it mean: if you just assembled a computer with such a video card or decided to reinstall the system on it by booting from a USB flash drive, and the monitor is connected via Display Port, there may be no signal from it.
  • If you bought a new monitor with a USB-C / Thunderbolt connection and are connecting a laptop to it, check the laptop specifications: not all of them support USB-C display. I also recommend using the native monitor cable, USB-C cables are different and some of them may not support video / audio output to the monitor.
  • READ  I Turn On The Computer And The Monitor Is Black

    Separately on the second of the above points: today there is often a situation when a user purchases a modern video card, which has only Display Port and HDMI, but has an old inexpensive monitor, on which there is nothing but VGA / DVI, and it is then that there is no signal This can be solved by purchasing an active converter from HDMI or DP to a monitor standard, but if possible, I would recommend changing the monitor.

    Additional possible reasons for the absence of a signal on the monitor and possible solutions

    If everything that was described above did not work, let’s move on to other possible options, also quite common:

    • If you have integrated video, try physically disconnecting the discrete graphics card, plugging a monitor into the integrated output, and see if that solves the problem. If decided, possible options: additional power is not connected to the discrete video card, hardware problems of the video card, lack of power supply unit (real power may drop due to wear and tear), problems with the slot where the video card is connected.
    • The problem in question is often described as “There is no signal on the monitor, but the computer is working.” In fact, the noise of the fans and the light of the indicators after pressing the power button does not always mean that the computer is turning on and working: in case of problems with the video card, power supply, RAM, lack of connection of some power lines to the motherboard (often during self-cleaning, assembly and disassembly, replacement of components), it can simply turn on the power on some lines, but not start, and also not send a signal to the monitor (at the same time, it will not play the OS boot sounds, if there were such before, but now there is no. this is an argument in favor of the described option). If other monitors are not shown on the same computer, this is another argument in favor of such a case. on this in a separate instruction What to do if the computer does not turn on.
    • If, when the computer starts to boot, the monitor shows something (POST / BIOS screen, logo), and then a message appears stating that there is no signal, there is probably something wrong with the image output parameters set in the operating system. True, usually in this case it is reported that Signal is out of range (signal out of range). A possible solution, if you have Windows, is to start Safe Mode and use restore points, or boot from a USB flash drive with the same OS version that you have installed, on the second screen, select “System Restore” at the bottom left and use restore points. In Windows 10, you can get into the recovery environment after two forced shutdowns (by holding the power button for a long time, although this is not the safest technique). As a last resort, you can also resort to reinstalling the OS.

    What does Check signal cable, No signal detected and “No signal” mean on the monitor

    All the listed messages on the monitor screen have the same meaning: the video signal supported by this input is not being received at the input. There is one reason, but the messages depending on the specific monitor may be different.

    • Checksignalcable means “Check the signal cable” (the one that connects the monitor to the computer). It may also appear as “Check Signal. cab. “.
    • Nosignaldetected means “No signal detected”.
    • Noinputsignal says translates to “No input signal”.

    The monitor writes No signal, No signal detected, Check signal cable. what does this mean and what to do?

    This manual details why when you turn on the computer there is no signal or “No signal detected” on the monitor, the possible causes of the problem and how to remedy the situation. First, there are simple options, then more complex ones, but also work in many cases. Similar problem: Monitor writes Out of Range, Input Not Supported (or Out of Range and Input Not Supported).

    Simple reasons that there is no signal on the monitor and how to fix it

    To begin with, about simple and fairly common variants of the causes of the problem and the corresponding methods of solution. I recommend not to skip a single item, even if you are sure that this is definitely okay.

    • The cable is really disconnected or not tightly connected from the side of the monitor or video card of the computer: it can be accidentally touched, someone could move the monitor. Be sure to check, this is not such a rare case.
    • If you updated your monitor or video card, and then connected the monitor using some kind of adapter or cable with different interfaces (for example, Display Port. HDMI, HDMI. VGA / DVI, and the like), remember that this cable or adapter itself may be source problems: some of them are unidirectional, some work only on certain equipment (for example, only on those video cards that support analog output via HDMI, and these have not been produced recently). The solution in this case is to try to use a connection using the same type of ports or at least connect a digital output to a digital input; you can also purchase an active signal converter. Ideally, use the original monitor cable without adapters.
    • If you connected your computer to a second monitor, projector or TV (How to connect a laptop or computer to a TV), turn off the computer, disconnect the cable leading to the TV from the video card (even if it is disconnected from the TV itself or the second monitor), turn on the computer again and check if No signal detected or Check signal cable problem is gone.
    • If in the menu of the monitor itself it is possible to select an input source (item “Input”, “Input”), open this menu and try to manually select the input used.
    • If possible, connect your monitor to another computer or laptop in order to exclude a malfunction of the monitor itself or its ports: if there is no signal on the other computer either, the problem should be looked for at the level of the monitor itself.
    • If the computer previously had a discrete video card, and now you connected the monitor to the integrated one (output on the motherboard), and received as a result “No signal”, the reason may be either the disabled integrated video in the BIOS, or the priority of the PCI-E video card set in the same place, or a processor without integrated video.
    • Some older video cards cannot output a signal to the Display Port (theoretically, the same option is possible with HDMI) until the drivers are loaded (at the beginning of the installed OS boot). What does it mean: if you just assembled a computer with such a video card or decided to reinstall the system on it by booting from a USB flash drive, and the monitor is connected via Display Port, there may be no signal from it.
    • If you bought a new monitor with a USB-C / Thunderbolt connection and are connecting a laptop to it, check the laptop specifications: not all of them support USB-C display. I also recommend using the native monitor cable, USB-C cables are different and some of them may not support video / audio output to the monitor.

    Separately on the second of the above points: today there is often a situation when a user purchases a modern video card, which has only Display Port and HDMI, but has an old inexpensive monitor, on which there is nothing but VGA / DVI, and it is then that there is no signal This can be solved by purchasing an active converter from HDMI or DP to a monitor standard, but if possible, I would recommend changing the monitor.

    What does check signal cable mean

    Sometimes some users of a personal computer have a situation when there is no image on the monitor and when it is turned on, a frame with the inscription Check signal cable is displayed. It can also be written in Russian “Check the cable”. Not everyone knows what this means, what to do to correct the situation and return the computer to working condition.

    What does Check signal cable mean?

    In order to understand what this phrase means, let’s see its translation. And it sounds like this. check the signal cable. The signal cable is the cable through which the image is transmitted from the video card to the monitor. It can be a VGA, DVI or HDMI cable.

    VGA cable for connecting a monitor to a computer

    In any case, the appearance of the phrase “Check signal cable” indicates that the signal cable is either disconnected or broken.

    Check signal cable what to do

    the computer gives an error when booting Check Signal Cable Digital What does it mean how to deal with it? Thank you in advance. and got the best answer

    Answer from Loony [guru]
    Disconnect the monitor from the system unit and turn it on without it. if a window appears with an inscription like “No signal”. the monitor is 100 percent. serviceable. Hitch it again and turn it on. if there is no short beep at the very beginning of a successful POST. the problem is in the motherboard, processor or power supply (if the coolers rotate at the same time, this does not mean anything).
    If there is a signal. try to replace the cable with a known good one (or check if this is connected securely) and select the signal source “Auto” through the monitor menu.

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    What to do?

    The first step is to check the reliability of the cable connection from the computer to the monitor at both ends. Wiggle it and fully tighten the fixing screws on both ends of the cable both from the side of the system unit and from the side of the monitor, if any.

    Also visually inspect the entire cable around the perimeter for mechanical damage and fractures.

    If none of the above helps, then you need to try to change the cable from the monitor to the system unit, borrowing it, for example, from friends or neighbors.

    Check signal cable what to do

    the computer gives an error when booting Check Signal Cable Digital What does it mean how to deal with it? Thank you in advance. and got the best answer

    Answer from Loony [guru]
    Disconnect the monitor from the system unit and turn it on without it. if a window appears with an inscription like “No signal”. the monitor is 100 percent. serviceable. Hitch it again and turn it on. if there is no short beep at the very beginning of a successful POST. the problem is in the motherboard, processor or power supply (if the coolers rotate at the same time, this does not mean anything).
    If there is a signal. try to replace the cable with a known good one (or check if this is connected securely) and select the signal source “Auto” through the monitor menu.

    What to do?

    The first step is to check the reliability of the cable connection from the computer to the monitor at both ends. Wiggle it and fully tighten the fixing screws on both ends of the cable both from the side of the system unit and from the side of the monitor, if any.

    Also visually inspect the entire cable around the perimeter for mechanical damage and fractures.

    If none of the above helps, then you need to try to change the cable from the monitor to the system unit, borrowing it, for example, from friends or neighbors.

    Of course, it’s a natural thing when various interference occurs or when defects occur in devices, regardless of their type. And this does not mean that from now on the design is unsuitable for further use. The opposite outcome is rare. Therefore, almost every problem can be solved without even having professional skills and special knowledge. In this article, we will try to analyze in detail the case in the absence of a signal at the structure. And also we will analyze what is the first thing to do and what difficulties you can face.

    Signal missing. possible causes

    To identify the source of defects, you should always start with the most common options. Therefore, we will analyze some of them.

    • First, you should check the performance of the monitor itself and make sure it is working properly. Also, check the signal connector of the cable, and whether it is plugged into the outlet. Check your monitor. Namely, the presence of all correctly connected cables both on the product and on the way from it to the video card. In addition, it is recommended to arm yourself with an additional system unit and check the screen operation process when interacting with an extraneous unit. Then we draw conclusions: if the image did not appear, then the problem is directly in the monitor itself, which means that it is advisable to contact a special salon, where they will definitely help you. In a different situation, go to the next point.
    • If you have two inputs (VGA and DVI), you can allow switching to the video card. You just need to swap them. Then turn on. If the result turned out to be negative, then still there is nothing to worry about.
    • So, the most basic stage, where you have to open the entire system and invade it. And first you need to eliminate the side of the entire box, and then, just in case, check all possible fastening of the structure.

    REFERENCE! Pay special attention to the graphics card. Now you can remove it and wipe the place where it was with an ordinary eraser to remove dust and other small particles of dirt. And only after that, insert the product in its original place and try to turn on the computer again. In the absence of a positive result, we proceed to the actions, according to the algorithm.

    • And now, in order to finally deal with the probable myths about the breakdown of a video card, we proceed to the final stage. To do this, we find the cable and switch it from the monitor to its input. If the personal computer did not turn on, then it was all in that product and this is not a myth. You should contact a qualified professional in this area directly. The other outcome is the motherboard. Here, only one option exists, namely, the repair of the entire system.

    How to check the signal

    Let’s try to figure out the problem with the help of the speaker. This procedure includes several steps. They are described below:

    • Let’s say the source of the problem lies in the motherboard. Therefore, we disconnect all components from it. Beforehand, the processor must be turned off.!

    ATTENTION! We leave only the power supply, the processor and, directly, the indicator buttons turned on. Next, we activate the unit. If there is a dissimilarity of the signal in the list, you should proceed to the next step.

    • We connect the video card. When highlighting a window with the name “problem with the south bridge”, you should contact a specialist, respectively. If there is no reaction at all, then the connectors should be rechecked. If there are problems with the wires, then it is worth replacing between the monitor and the cable. Then reconnect.
    • And the most extreme option is a problem with the power supply. If after all the checks there was no result, then this indicates only one thing.

    Check signal cable what to do

    the computer gives an error when booting Check Signal Cable Digital What does it mean how to deal with it? Thank you in advance. and got the best answer

    Answer from Loony [guru]
    Disconnect the monitor from the system unit and turn it on without it. if a window appears with an inscription like “No signal”. the monitor is 100 percent. serviceable. Hitch it again and turn it on. if there is no short beep at the very beginning of a successful POST. the problem is in the motherboard, processor or power supply (if the coolers rotate at the same time, this does not mean anything).
    If there is a signal. try to replace the cable with a known good one (or check if this is connected securely) and select the signal source “Auto” through the monitor menu.

    Sometimes some users of a personal computer have a situation when there is no image on the monitor and when it is turned on, a frame with the inscription Check signal cable is displayed. It can also be written in Russian “Check the cable”. Not everyone knows what this means, what to do to correct the situation and return the computer to working condition.

    What does Check signal cable mean?

    In order to understand what this phrase means, let’s see its translation. And it sounds like this. check the signal cable. The signal cable is the cable through which the image is transmitted from the video card to the monitor. It can be a VGA, DVI or HDMI cable.

    VGA cable for connecting a monitor to a computer

    In any case, the appearance of the phrase “Check signal cable” indicates that the signal cable is either disconnected or broken.

    What to do if there is no signal

    In any case, don’t worry. All defects can be resolved, even if it is a major repair. Each professional specialist knows a lot about his business, so that troubles will be eliminated. Generally speaking, in addition to the above procedures, you can try to reset all existing settings, as well as roll back previous changes. This is because updates can also affect the device’s performance. In addition, it is possible to restore the object.

    over, it will be best if the process is completed by means of the disk where the operating system is installed. When the PC is running on a Windows basis, the process will be the easiest and most straightforward. Therefore, after supplying the disk, we reboot the structure. Next, a window with the name “System Restore” will be available. you must select it. After that, you will need to rely on the provided instructions. If all still nothing helps, then there is only one way out. to carry the structure directly to the master and give a small amount of money for it.

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