If you came to this article, then you had to face a problem when the laptop does not turn on and a black screen appears. This is the most common problem associated with laptop hardware, or, to be more precise, with hardware settings.
We thank the laptop repair service FIXIT.BY (Minsk, Belarus) for their help in preparing this material.
Below we will look at how to reset hardware settings. This method helps when the hardware settings are lost, but it will not help if your laptop was flooded with water.
Resetting BIOS Settings
If the problem “the laptop does not turn on and a black screen appears” appeared after changing the BIOS settings, then you just need to reset and roll back to factory settings. This action is performed in several steps.
You can read more about the information “how to enter the BIOS on Windows 10” or “How to enter the BIOS on Windows 7” in our articles.
If these steps don't help, see the next step.
Reinstalling the RAM module
The image may also not be displayed due to incorrect installation of the memory module or problems with contacts (very often this method helps to get rid of the problem “the laptop does not turn on and a black screen appears” after water or moisture gets on it, but before that, make sure that your laptop completely dry and under no circumstances do not perform any actions if it is not dry).
To do this, you need to remove the RAM module and blow out the connectors.
— If you have one stick of RAM installed, and there are 2 slots available for it, just swap them.
Now let’s figure out how to remove RAM.
One of the most common problems with which people turn to a computer service is the problem associated with turning on the laptop. What should you do if you turn on your computer and see a black screen? In this article we will try to highlight all the reasons why the laptop stopped turning on. At first, it may seem that the problem is very serious, requiring the intervention of an experienced specialist. In fact, such problems are often associated with ordinary user inattention and can be solved quite simply.
All problems can be divided into two groups:
- The computer turns off by itself.
- The computer turns off during the game or displays a black screen.
The computer turns off by itself
— Your laptop battery is dead. Your laptop may work properly, but at one point a black screen may appear or stop turning on, what should you do? Most often, the reason is that the battery has exhausted its resource. To solve this problem, simply replace it. If you don't have this option now, you can simply pull it out and reinsert it into your laptop. Perhaps the battery will charge and work again (though not for long). You can also simply remove your battery and connect it to power, in which case your laptop will run on electricity.
— Conflict with external media. It often happens that the laptop does not turn on due to the fact that a flash drive, camera, video camera is connected to it... Or the computer’s screen immediately goes blank when these devices are connected... In this case, you need to disconnect external media and try to turn on your device.
— Motherboard problem. The motherboard is the most important component of any computer. The damage to her death is similar. This often happens due to careless handling of the laptop, impacts on it... In this case, doing something yourself is useless and the only solution to the problem is to replace it.
— Bad contacts. This problem occurs when you have a missing battery in your laptop. A common problem in this case is poor contacts. Check that all wires are securely attached to the computer. It is also worth checking that the outlet is working properly.
— Problem with components. Most often this is overheating of the processor or video card. The reasons may be different, but the most common is dusty laptop. To prevent this problem, you need to clean your laptop from dust at least once every six months. If you are not confident in your abilities, then it is better not to do anything yourself, but to entrust the matter to professionals.
— Malware can block your computer from working. The symptoms are simple: the computer restarts upon startup or displays a black screen instead of the desktop. computer This problem can be solved in three ways. The first is to go into safe mode and from there scan your computer with an antivirus. The best option here is Dr Web Cureit. The second way is to “roll back” the system to the moment when it was working properly. This method is guaranteed to save you from almost all problems associated with the inability to turn on the computer (except for hardware ones).
The third method is a simple reinstallation of Windows. The most common way to solve problems, which, however, has some disadvantages.
— Driver problem. After installing the driver, did your computer turn off or show a black screen? Most likely, the issue is with the driver. The best way to solve the problem is to reinstall the driver or roll back the system. Steps: Start > Control Panel > All Control Panel Items > Recovery > Run System Restore.
— A system file has been damaged or deleted. May be the result of user actions or a virus. Reinstalling the system or rolling back helps.
— Registry problem. Over time, the registry becomes contaminated with unnecessary junk, as a result of which the laptop may slow down or intermittently crash. In this case, it is necessary to perform a system rollback. It is also necessary to regularly make copies of the registry.
— Bios problem. What to do? This problem can be solved by resetting the settings. This will cause the Bios to return to its original state and the computer will start normally again. After you press the power button on the computer, immediately press the button to enter Bios (it is different for different operating systems). You wait a little. Next, press the F9 button (reset Bios settings) and press Enter (confirm the reset). If the problem was in the Bios, then your computer is guaranteed to start; if not, then the problem is something else.
Computer turns off while playing
It happens that we launch a game and the laptop turns off, or instead of our favorite shooter we see a black screen in front of us. What to do and what are the reasons for the breakdown?
- The most common reason is excessive load on the power supply. Very often “heavy games” are to blame for this. If you are sure that the problem is not in the game, but in the power supply itself, then you need to replace it with a better one.
- Processor problem. When we launch a demanding game, the load on the processor increases many times over, and a black screen may appear. Accordingly, if the temperature sensors detect an excess of temperature on the computer, then the protection mode is triggered and your computer simply turns off. Most likely, your cooling system is outdated. The best option is to replace the processor cooler.
A laptop is a complex device. To enable it, a whole series of actions take place that the average user is not even aware of. The breakdown could have occurred on any of them.
- Burned out power supply, or the cord is damaged.
- Battery out of order.
- Burnt out motherboard, or rather any component located on it.
- Absent initialization.
- Flew operating system.
Black screen when turned on
The user turns on the laptop, but the screen does not light up. This happens often. There can be many reasons:
- Problems related to southern or northern bridge caused by mechanical interference or overheating.
- Does not work CPU or video card.
- Torn plume.
- Burnt out RAM or has fallen out of the connector.
- Wrong configured computer hardware.
- Battery"died".
The first three points can be repaired on one's own.
In the case when the laptop turns off after a long time of work and does not want to start - this is most likely overheat.
Should define whether the laptop turns on at all when you press the power button. That is, the indicators light up and the fans and hard drive make noise. Based on this, we will have to act.
Trouble-shooting
Battery replacement
Checking the loop
It may be that the monitor cable has come loose or broken. This can be checked connection another monitor.
Incorrect BIOS settings
There were cases when users with the same problem were helped reset BIOS settings to factory settings.
RAM is faulty
Alternatively, you should check, whether the RAM sticks are inserted well. They can also cause a black screen. 
BIOS malfunctions
Perhaps the problem is settings BIOS. Then, as stated above, you should go to its settings and reset them to factory ones.
Freezes when turned on
This can happen for many reasons. One of them is overheat. If it is strong, then you can even feel it. In this case, you should open the laptop. If there is a lot under the body dust, then you need to eliminate it, especially the one that lies on the fans. 
Perhaps the freeze is due to problems with a hard drive, when it starts to break down, it all starts with freezes. Then you need to change the hard drive, but before that it is better to visit a service center. 
Problems with the operating system
When the operating system crashes or viruses get into it, problems may begin to turn on. Then it will help either reinstallation Windows or cleaning from viruses if possible. You should try to log in through safe mode, if possible, then check your computer for viruses.
Recently, Windows updates have been causing similar problems. Then you need to roll back or reinstall.
Laptops have become an integral part of the life of modern people. Like other equipment, they sometimes break down. When it stops turning on, you should not panic, but you should find the cause and eliminate it. In most cases, you will be able to restore your computer's functionality.
Causes of malfunction and their solutions
There can be a huge number of reasons why the laptop does not actually turn on. Many of them are quite simple and it won’t be difficult to fix them yourself, but with some problems you will have to contact a service center.
Let's look at the main reasons why a mobile computer may stop starting:
Comment. Very often, when people say that the PC does not turn on at all, they mean that Windows does not load. This is not entirely correct reasoning, but it is popular among ordinary users.
Eating problems
Power-related problems very often lead to the PC not starting up. Even though the problem seems serious, in most cases it is quite easy to diagnose and fix it at home.
Main problems related to nutrition:
- incorrect adapter connection;
- damage to cables and connectors;
- battery failure;
- power supply failure;
- problems in the power circuit.
Often, with such problems, the laptop power indicator does not light up. First of all, you should check that the power supply is connected correctly and that it is plugged into the outlet. It is worth noting that even very experienced users may forget to connect their PC to the network. As a result, after the battery is discharged, the device stops starting.
Damage to power cables and connectors can be caused by many reasons, including careless handling or pets chewing the wire. This malfunction can be verified by external inspection.
Another very common problem is related to the battery. In some cases, if it does not work, the PC stops turning on even with the network adapter connected. Usually, after pressing the power button, even the cooler does not work. Therefore, it is worth trying to run a mobile computer powered by mains power without a battery.
The power supply fails quite often in any device. Without a charger, the laptop battery will run out sooner or later, after which the computer will no longer turn on. It's very easy to check if the network adapter is working. It is enough to connect another charger from a known good computer.
Many power supplies are equipped with an indicator. Even if the light is on, it is impossible to completely rule out problems with the network adapter. It is worth noting that there are many power supplies for laptops. You should only connect adapters that are suitable for a specific model to your computer.
Problems associated with a malfunction in the power circuit are much less common, but they are more serious. In this case, you will not be able to diagnose the problem yourself, much less fix it. You need to contact specialists from our service center. Leave a request and they will call you back within a few minutes.
Hard drive is faulty
The hard drive stores all the information and operating system of the computer. If it malfunctions, the computer can be turned on, but it freezes before the Windows screen saver appears. In some cases, an HDD error message may be displayed, for example, information that the disk is not the system one.
In any case, the user still has the opportunity to go to the BIOS SETUP menu. There you can check whether the hard drive is detected and the settings are correct. If the hard drive is visible, then you can start the system from a boot disk or flash drive and test it.
Failure of the video card and chipset chips
Laptop components may also fail. The reasons for this may be overheating, damage due to impact, and so on.
Let's look at what parts most often create problems with turning on a PC:
- south bridge;
- north bridge;
- video card.
The behavior of the computer in this case can be very different. If the video card fails, there will be no image, but the fan will work and sometimes Windows will even boot, making a corresponding sound. If one of the bridges fails, the computer may not turn on at all or may stop before loading the OS.
It is almost impossible to determine the reason in this case on your own. And trying to repair it at home will most likely only cause harm. Therefore, it is better to use the services of a service center.
Video: Laptop won't turn on. Board diagnostics.
Other reasons
In fact, the malfunction may lie in a number of other problems. Among which are the following:
- CPU or memory damage;
- broken BIOS firmware;
- overheat;
- errors in Windows operation.
If your PC beeps when you turn it on, in most cases this indicates overheating or problems with the RAM. If you have a little experience, you can try to find out on your own why this is happening. To do this, you must first remove the dust. If the problem persists, you can replace the memory modules with known good ones.
Broken BIOS firmware may result from an incorrect update. If the user tried to carry out this operation before the problem occurred, then he will have to contact for repair.
BIOS configuration errors are also common. It is very easy to solve this problem yourself by simply going to the SETUP menu and loading the default settings, for example, selecting the Load Setup Defaults option.
Errors in Windows operation can lead to the OS not starting. First of all, you need to find out their cause and try to solve it. In addition, you can try reinstalling the operating system or restoring the one installed from the factory.
Laptop won't turn on at all
Very often the laptop does not turn on at all due to power problems. But ? The power button lights up after pressing and nothing further happens. You will have to look for the cause and eliminate it.
Typical actions that cause a laptop to stop turning on:
- dust cleaning;
- update;
- overheat.
If errors were made during the cleaning or updating process, the behavior of the computer may be very different. Including the start may not occur at all. In addition, the system may not turn on due to problems with the hard drive or after overheating.
After cleaning
There are situations when, after cleaning, the laptop stops turning on. This may cause the fan to start or make a squeaking noise. On some models, the indicators also begin to flash.
Cleaning a laptop involves disassembling it. The first thing you need to do is disassemble it again and check the connection of all components, as well as the installation of the cooling system. It would be useful to pay attention to the thermal paste and the serviceability of the tubes used for heat removal.
If the RAM modules were removed during the cleaning process, you should try to remove them again, clean the contacts and reinstall them. You also need to check whether the laptop starts with the hard drive and optical drive disconnected.
When re-disassembling, it is worth paying attention to the lid (display) opening sensor. If the assembly is not very careful, it may end up out of place.
If following simple tips does not lead to results and the device still does not work, then you should contact a service center. It is possible that during disassembly the elements were damaged by static electricity or another problem occurred.
After update
Problems may occur during the update. If updates are installed incorrectly, this may result in the computer not turning on.
In this case, the user can install a new version of the BIOS, drivers or patches for the operating system.
The most difficult case is the inability to start the computer after updating the BIOS. This happens when the user tried to interfere with the process, for example, by rebooting or turning off the computer during it, or when using unofficial firmware.
Of course, resetting the settings to standard won't hurt. This can be done by removing the battery for a few minutes or by closing the corresponding jumper on the motherboard. But as practice shows, this probably won’t help fix the problem. The only way out is to contact a service center for repairs.
In a situation where errors started after installing driver or Windows updates, you can simply roll back to the previous restore point from safe mode, reinstall the operating system, or return to the state it was in when you purchased it, if such a function is available in the model.
Hard drive is faulty
Usually, if a hard drive malfunctions, the startup occurs, but the system simply freezes at the manufacturer’s logo or displays information that the drive is not a system drive or is damaged.
If the hard drive is detected in SETUP, then you can independently diagnose it by booting from removable media and running a specialized utility, for example, Victoria. If your worst fears are confirmed or the device cannot be detected in the BIOS, you need to check the cable.
As a last resort, you need to replace the hard drive yourself or with the help of our specialists; to do this, click the “Request a call” button.
After overheating
Modern computers generate quite a lot of heat during operation. If there is heavy dust or a malfunction of the cooling system, overheating may occur, after which some parts may fail. As a rule, it is impossible to solve the problem yourself; you will have to contact a service center for this.
The main parts that can fail as a result of overheating are:
- CPU;
- video card;
- HDD;
- north and south bridges.
Spontaneous shutdowns
In some cases, the computer may turn on and even work normally for a while. After which a spontaneous shutdown occurs. There are several main reasons for this.
Let's look at typical problems that lead to the device turning off without instructions from the user:
- overheat;
- parts failure;
- viruses;
- software errors.
Overheating is the most common cause of random shutdowns and reboots of mobile PCs, which can subsequently lead to device failure. In order to avoid this, it is necessary to regularly remove dust, and also sometimes change the heat-conducting paste.
Part malfunctions very often also occur due to overheating. If there have been no regular cleanings, then the likelihood of this is high. You won't be able to solve this problem on your own. Therefore, you should contact our specialist immediately.
Viruses can cause the system to not work correctly, which can cause the PC to shut down on its own. To solve this, you need to download special utilities from Doctor Web or Kaspersky Lab, perform a full scan and remove threats.
Software errors also often lead to random shutdown of the laptop. You need to find the reason using the code that appears on the screen at the time of the failure. After this, you should delete the problematic application or try updating to the latest version.
Checking for battery problems is quite simple. You need to take it out, connect the charger and start the laptop. If the glitches disappear, then you need to replace the battery.
It turns on, but...
In some cases, the PC may turn on, but the download will stop at a certain point. In this case, error messages may appear on the screen. In some cases, Windows does not start; in others, it cannot even initialize.
Fails to initialize
Initialization occurs when the PC starts before Windows starts loading. If the indicators light up, the cooler turns on, but there is no access to the hard drive (the corresponding light does not light up), then the initialization most likely failed.
Possible reasons why the laptop may not initialize:
- malfunction of the processor, memory or video card;
- incorrect BIOS firmware;
- defects or damage to the south or north bridge.
Regardless of the reason, you will have to take the PC to a service center. In this case, only a specialist with the necessary equipment will be able to accurately determine the cause of the problem and eliminate it.
Windows won't start
The inability to start Windows in most cases does not indicate hardware problems. Therefore, you can try to reinstall it, roll back to a previous PC state, or use recovery tools from the manufacturer.
In hardware, most often the inability to boot the OS is due to hard drive problems. In this case, it will have to be replaced. You can first try to carry out diagnostics using special utilities by booting from removable media.
There are a lot of options for laptop malfunctions. You can diagnose and fix many of them yourself at home, but in the event of a serious breakdown you will still have to contact the specialists of our service center.
Has your laptop stopped turning on after being used for less than a year? Or didn't work at all? Then this article will be useful to you. It describes what actions you can take on your own in such an unpleasant situation, and when you need to turn to professionals and get qualified help.
There are two types of problems with a laptop: software and hardware. Software failures are resolved on the spot. These include operating system problems, failures in BIOS settings, etc. Hardware problems are those when manual repair is required, that is, physical intervention in the device.
First you need to identify your problem. If the laptop stops turning on, we can say with confidence that the problem is hardware. And if it turns on, but when it gets to loading Windows freezes and reboots, then there may be some software or hardware problem. The rest of the article will describe step-by-step diagnostics of existing problems, and you can rule out problems that do not apply to your case. Having diagnosed the fault as accurately as possible, you will have already completed half the repair.
Laptop won't start
Mostly such problems are related to nutrition. It is necessary, first of all, to check the voltage in the outlet by connecting the power supply to the laptop. Power adapters usually have a light on them that confirms their functionality. On a laptop, such a light indicates that the battery is charging or is connected to the network.
Most often, the power supply is broken or does not work properly (in this case, you need to try a similar one that works), the wires are deformed, the contacts in the connectors are worn out. Having assessed all possible breakdowns, we can conclude when exactly the power goes out.
To avoid problems with the power connector, you need to insert the plug into the laptop first, and then the power cord into the outlet. Thus, at the moment of connecting the plug, it is possible to exclude a short-term spark.
If all the indicators are on, but the laptop does not turn on, then most likely there is nothing to do with the power supply. You should try removing the battery and then plugging the laptop into the network, but without it. Then after 10 minutes return the battery to its place. After disconnecting external devices, constantly try to turn on the laptop; if it works, then return the devices one by one to their place. This way you can determine the cause of the problem.
If the warranty period for your laptop has not yet expired, but it does not turn on, you need to contact the nearest warranty service center as soon as possible.
This is, perhaps, all that you can do yourself without disassembling the laptop if it does not turn on at all. More serious reasons for this failure may be: a failed or burned out motherboard, a broken power controller, a BIOS firmware failure, a broken contact inside the device, and others.
The screen does not show or does not work, but the noise of the laptop fans is heard
The laptop itself may turn on, but the monitor does not work. Take a good look at it, the backlight may not be working properly. Find and press the hot keys to turn it on. On most Lenovo models, for example, the key combination " Fn+F2».The surest way to check the screen is to connect an external monitor to the VGA output of the laptop. If the image appears, that means for sure.
Fans of computer games often have discrete video cards that fail. It overheats, which quickly breaks down. The main causes of failure are: poor cooling system, improper use, dust and dirt.
When using a laptop, do not close the ventilation openings (do not place it on your stomach, on a soft sofa, on your lap, etc.). Cooling pads must be used. If the laptop is not designated by the manufacturer as a gaming laptop, then it is not recommended to play games on it for a long time that require large resources. Don't forget to monitor the temperature of your video card.
So, if the problem is with the video card, then turn it off using the switch that is found on some models and take it out. A laptop without a video card can work, you just won’t be able to play games with high demands.
More serious reasons are also possible: the problem is a burnt-out motherboard, the memory or processor is not working, broken BIOS firmware, etc.
Turns on, then shows a splash screen, maybe writes something, and then hangs
The initial screen saver or information about the laptop may appear, and then absolutely nothing happens. A beep is heard or an error message is displayed on the monitor. The cause of the failure is most likely in the BIOS settings. You just need to log in and reset all settings to default.In different versions, this item is located in different places, but has approximately the same name " Load BIOS Defaults", Where " defaults" keyword. Then exit after saving all settings (“ Save Settings and Exit»).
If the system reports an error and further loading is possible, then you just need to click on the button required in the message. For example, it might be written “ Press F1 to continue"(press F1 to continue loading). This usually happens if the battery on the motherboard runs out (not to be confused with a shared battery), and the time settings and Bios settings fail. Such a breakdown must be repaired at a service center.
Fixing such breakdowns is the only thing you can do yourself, since the problems can turn out to be much more serious. For example, a hard drive failure or RAM failure.
Having some experience, it is possible to diagnose problems directly with the hard drive by listening to the laptop. When turned on, the working disk spins the engine, reads the information for a few seconds, and crackles. If problems arise, the engine may try to start several times without success, or a cyclic crackling sound can be heard from the heads as they attempt to read information from the platters, and the image freezes on the monitor.
Some models have direct access to RAM. If you suspect that the problem is with them, you can try to remove them and carefully clean the contacts. If this procedure does not bring the expected result, then try rearranging the memory modules into another slot. And if there are several of them, then leaving one strip at a time, try to start the laptop.
Laptop reboots and turns off
Even before trying to boot Windows, the laptop can reboot endlessly. This is a serious hardware problem, one of the possible causes is the southbridge overheating and short circuiting. This happens mainly due to USB breakdown(you need to remember what was inserted into such connectors).Another reason for turning off or restarting a laptop is CPU overheating. This usually happens if the cooler is clogged with dust or the radiator does not fit tightly. But this phenomenon is mainly accompanied by high fan speeds and occurs very rarely. In this case, it is possible to restart the laptop and turn it off at any time.
If the power supply is insufficient, or possibly completely absent, the device may quickly go out when turned on due to a dead battery.
A message appears on the monitor - startup from boot device is not possible
Various messages may appear, for example, “Error loading operating system” or similar. First of all, remove the disk from the drive and remove all flash drives from the connectors, then reboot the machine. If this procedure is unsuccessful, then the problem is with the hard drive (hardware or software problem).A service center can help you solve a hardware problem, but first you need to make sure that the problem is in the disk. The easiest and easiest way is to reinstall Windows yourself. If it helps, then the problem is software.
Windows starts and loads, but everything is quite bad...
Windows starts loading as usual, but then the laptop randomly reboots and errors appear on a blue or black screen. In such a situation, there may again be a hardware problem, various network failures.The easiest and most reliable way to check is to reinstall Windows. A simplified version of checking is to try to start with a bootable USB flash drive or disk with Windows. If the laptop also behaves poorly, then it is probably necessary to take it in for repair.
Let's sum it up
What should you do if suddenly the laptop does not turn on? Initially, think about it and try to remember what happened before and how it was used. If you played on it for a long time, then most likely the video card and other parts on the motherboard overheated. Then you need the help of an experienced specialist.If you tried to install any programs on your laptop, rebooted it and the operating system did not load, then there may be errors with Windows.
The main and main diagnostic problems and their independent solutions are described in this article. Finally, I would advise you not to disassemble your laptop without having the necessary experience and not to immediately make rash conclusions.
