What to do if the laptop does not turn on. Other malfunctions that prevent the laptop from booting. Laptop won't turn on - BIOS problems or hardware errors

If the laptop does not turn on, this indicates some kind of problem in the system, but do not panic. Perhaps the problem can be fixed without interfering with the laptop hardware. In this case, there is a chance that you can handle it on your own.

Of course, if you have knowledge and experience in the computer field, you can try to cope with any problem yourself, the main thing is to adhere to the “do no harm” principle. Otherwise, do not hesitate or hesitate, contact specialists. This is very important to consider, for example, if you spilled liquid on your laptop. Contact oxidation is a rapid process, and the longer we put off going to a professional, the more likely it is that you will be told “cannot be restored or repaired.”

Let's look at the main reasons why your laptop won't turn on and what you can do now.

It should be immediately clarified that there can be a lot of reasons for failure and they will be of both hardware and software nature. We will check everything in order and look for our case. If anything, contact a workshop in your city.

This article is suitable for all brands that produce laptops on Windows 10/8/7: ASUS, Acer, Lenovo, HP, Dell, MSI, Toshiba, Samsung and others. We are not responsible for your actions.

The laptop does not turn on and shows no signs of life

Often such problems are related to nutrition. The first thing you need to do is connect the laptop to the power supply to check for voltage in the outlet. The adapters are equipped with a power light, which indicates its functionality. The laptop has a light that lights up when it is plugged in or the battery is charging.

Most often, the reason is a power supply that does not work or is not functioning properly (here you need to try a similar working one), due to the presence of bad contacts in the connectors, kinked or broken wires. Therefore, we look and draw conclusions at what stage the voltage disappears.

To avoid problems with the power connector, it is recommended to first insert the power plug into the laptop, and then only the power cord into the outlet. This will eliminate the possibility of a short-term spark occurring when connecting the plug, which could damage the contacts.

If the laptop does not turn on, but everything is “on”, then the problem may not only lie in the power supply. You should remove the battery and connect the device again without it, then after 10 minutes put the battery back. Also turn off all external connected devices, you can also turn off wifi adapter, if the design allows.

If everything works, then return the devices one by one. This is how the reason is determined.

Hard drive is faulty

In case of malfunction hard drive The laptop can be turned on, but before displaying Windows screensavers it freezes. In some cases, a message appears about HDD error, for example, information that the disk is not a system one.

In any case, the user still has the opportunity to enter the BIOS. There you can check whether the settings are correct and whether the hard drive is detected. If hard drive is visible, then the system can be started with bootable flash drive or disk for testing it.

Damage to chipset and video card chips

Various laptop components can fail. The causes of failure may be damage due to impact, overheating, etc.

The most common problems that arise when turning on a laptop are:

• Video card.
• North Bridge.
• South Bridge.

When a laptop breaks down, its behavior may vary. If the video card fails, then there is no picture, but the fan will function and Windows may even boot, making appropriate sounds. If one of the bridges breaks, the device will stop before loading the OS or will not turn on at all.

In this case, it is almost impossible to determine the cause yourself. At home, attempting repairs may damage the device, so it is better to contact service center.

Other reasons

In practice, a malfunction can occur in a number of cases:

• Error in Windows work.
• Overheat.
• Broken BIOS firmware.
• Memory or processor damage.

If the laptop beeps when turned on, this indicates problems with the RAM or overheating. If you have a little experience, you can independently identify the problems and why this happened.

First you need to remove the dust. If the failure remains, then the memory modules should be replaced with known good ones.

The problem with broken BIOS firmware appears after an incorrect update. Errors often occur during BIOS configuration. This problem It's quite easy to decide on your own. You should go to the SETUP menu, load the default settings, for example, select the Load Setup Defaults function.

Errors may appear in Windows, resulting in the operating system not starting. It is necessary to determine their cause and solve the problem. Alternatively, you can reinstall the OS or restore the installed one.

Often the laptop does not start due to power problems. After pressing the power button, the power button lights up, but then nothing happens. The cause should be found and eliminated.

The laptop stops turning on due to the following typical actions:

• Update.
• Cleaning from dust.

To troubleshoot problems, you can replace the battery:

After cleaning

After cleaning, the laptop may not turn on. In this case, the fan may start or make a squeaking sound. The indicators may flash on some models.

The process of cleaning a laptop involves disassembling it. First, you need to re-disassemble the device and check the connection of all components and the installation of the cooling system. It is important to pay attention to the thermal paste.

If RAM modules were removed during cleaning, you must try to remove them again, clean the contacts and reinstall them. It is important to check whether the laptop starts with the optical drive and hard drive disconnected.

When disassembling again, you need to pay attention to the lid opening sensor. If the assembly is not carried out very carefully, then it may not be in the right place.

If the above tips do not help, then you should turn to professionals. There is a possibility that parts were damaged by static electricity during disassembly or some other problem occurred.

After update

When updating, problems may occur. When updates are installed incorrectly, the laptop stops turning on. The user can then set new version drivers, BIOS or OS patches.

Most difficult case is the inability to start the device after updating the BIOS. This happens when the user interferes with the process, for example by turning off or restarting the computer while updating or using unofficial firmware.

It wouldn't hurt to reset the settings to default. To do this, you need to remove the battery for a few minutes or short circuit system board corresponding jumper. In practice, this is not always possible to resolve the problem.

If the problem started after Windows updates or drivers, you should simply roll back to the previous restore point using safe mode. Recovery can also help operating system or return to the state, if the model supports such a function.

After overheating

Modern laptops generate a lot of heat during operation. If the cooling system is faulty or there is heavy dust, overheating occurs, which can cause some parts to break.

The following parts may fail due to overheating:

• Southern and north bridges.
• Hard drive.
• Video card.
• CPU.

Spontaneous shutdowns

In some situations, the laptop may turn on and function normally for a while. Then it happens spontaneous shutdown. Main causes of failure:

• Faulty parts.
• Software errors.
• Overheat.

The most common cause of laptop shutdowns is overheating, which can further lead to damage to the product. To avoid this, you should regularly remove dust and change the thermal conductive paste.

Quite often, parts malfunction due to overheating. If you do not carry out regular cleanings, this probability increases significantly.

Correct work systems can be damaged by viruses. As a result, the device will turn itself off. The issue can be resolved using special utility from the Kaspersky Lab website or Doctor Web, performing a full scan and removing threats.

At software errors you need to find the reason using the code that is displayed on the screen at the time of the failure. Then the problematic application needs to be removed or updated.

Cannot start from boot device

When loading Windows on English Various messages may be displayed, for example “Error loading operating system”. The first step is to remove the disk from the drive, all flash drives and reboot the device. If this does not solve the issue, then the reason is a software problem with the hard drive or a hardware problem.

Most accessible method restoration of functionality will be reinstalling Windows. If this helped, then the reason was at the software level.

Another possible option is when it starts Windows download, but then the laptop reboots itself, showing errors on a blue or black screen. Here, hardware or software failures may also be the cause.

The right way check this will be reinstalling the OS. An easy way to check is to start the system from a bootable USB flash drive. If the device does not start, then it should be taken in for repair.

Any thing, including laptops, after long-term use needs preventive maintenance and early repair. But what to do if the laptop does not turn on at all? There may be many reasons for this, but some of the possible problems can be solved independently, without turning to specialists.

Problems with a laptop can be divided into two large subgroups: technical and software. Moreover, in each of these two large groups there are problems that can be resolved without problems at home, on our own(although technical problems can generally be corrected only in service centers by specialists, if available necessary equipment).

Before you move on to repairing your laptop, you first need to find out the causes of a particular malfunction. If the problem is more than serious, it is better not to take risks and immediately contact specialists, because in this case the laptop owner will be able to avoid much bigger troubles than to undertake repairs on their own. This is especially true for the technical part, which involves not only replacing components, but also resoldering various parts. Let's take a closer look at the malfunctions that may arise in the operation of a laptop.

The laptop won't turn on and doesn't make any sound when I press the power button.

The main reason for such problems is a power problem. Check if the outlet the laptop is plugged into is working. This can be done either with a tester or by carefully looking at the power supply from the laptop. There is always a green indicator (light) on it, and if it does not light, then the problem is in the electrical system of the room.
Due to wear and tear, the cord itself and the power supply from the laptop may fail. Try connecting another one and check if the laptop turns on with it. If the laptop starts with a different cord, look for a problem in the cable and power supply, or buy a new one.

Problem with connection connectors

If the socket in the laptop itself becomes unusable, contact the service center to have it replaced. If this connector is located on the power supply, you can also use the services of specialists or buy a new one.

Advice: to make the connectors last longer, try to connect the power supply first and only then insert the plug into the outlet. This will help avoid the occurrence of microshorts, which will significantly extend the service life of the connectors.

If even the light on the power supply comes on, but the laptop still does not turn on, try removing the battery and turning on the laptop without it. If everything works, then the problem is in the battery.

If other devices are connected to the laptop, for example, network adapter, disconnect them and try to start again. If the start is successful, turn off the laptop and connect one or another device one by one to identify which one is directly failing.

The screen does not light up, but the cooler starts working after switching on.

This problem does not arise due to malfunctions of the laptop itself, but specifically the monitor. The brightness may have been reduced to the minimum level. In this case, try holding down the Fn button and clicking the up button several times (as a rule, this is the combination that allows you to increase the brightness).

Try connecting the laptop to any other monitor (all laptops have a VGA or HDMI video connector). If the display is normal on another screen, then the problem lies precisely in the matrix, or in the cables connecting the matrix and the motherboard. If the other screen does not reproduce any picture, or strange objects are displayed on it, a bunch of stripes is a problem with the video card, which will most likely have to be replaced.

Laptop dusty

The problem may also be that the inside of the laptop is very dusty, which causes the components to overheat and they refuse to work. Try to disassemble the laptop, or contact a specialist, clean it of dust, change the thermal paste on the processor.

Video card problem

To prevent problems with your video card, it is recommended to constantly check it operating temperature and avoid overheating. Also, if the user likes to work with a laptop on his lap or in bed, it is recommended to purchase a special stand that will ensure normal cooling.

The laptop starts, but strange messages and errors are displayed on the screen

This situation may arise due to incorrect BIOS settings. Go directly to the BIOS (at startup, press the Del or F2 or F12 button, depending on the laptop model) and try resetting the settings to factory settings. To do this, you need to find the inscription “Load BIOS Defaults”, click on it and exit the BIOS, having first saved all changes (F10 button and confirmation of the operation).

After this, a message may appear that you need to click on F1 to continue - this means that the battery installed on the motherboard is already dead and needs to be replaced soon.

Problem with hard drive or RAM

Typically, if the hard drive fails, the laptop will display an error stating that it cannot find the boot sector or boot the OS.

Try to pull it out optical discs and flash drives and re-enable. If the problem persists, you will most likely need a new hard drive.

Regarding RAM, try to carefully wipe the contacts on the strips, maybe dust has settled on them.

If you do not have these spare parts, you will probably have to take the equipment to a service center to find out exactly what is faulty, whether it is possible to fix the breakdown or replace this part with a new one.

The laptop turns on, but the OS does not start or there are constant reboots

There are cases in which the laptop starts, but then turns off on its own before full load OS. A similar problem can be caused by failed capacitors. This will require resoldering them.

Also, even if the OS boots, but soon the laptop turns off, you need to clean the laptop from dust and replace the thermal paste, because it causes overheating and, as a protective reaction, the equipment turns off.

Faulty server bridge

If the download does not even reach the OS logo, this problem may be caused by a faulty server bridge. This will also require re-soldering, and besides, this repair will be quite expensive.

OS problem

If " Blue screen death" - this problem is directly related to the operating system. Take advantage backup copy and restore the settings, or reinstall the OS.

The problems described above are the key and most likely.

Has your favorite laptop stopped turning on after many (or not so many) years of use? This is a fairly common problem, and we will try to tell you in detail what you can do in such a situation yourself, and when you should seek professional help from a service center.

Troubles with a laptop can be either hardware or software. Software problems are associated with software failures (for example, problems with BIOS settings, OS or third party applications) and can be solved directly behind computer desk. Hardware problems are expressed in the physical breakdown of the laptop and its components, and to resolve them, mechanical repair of the device is required.

The power button does not work - what's the problem?

If, when you try to turn on the laptop, it does not react at all to pressing the button, you can say with a significant degree of confidence that there is a hardware problem. When the startup process goes wrong when the operating system boots, the problem can be either hardware or software. To correct problems, you must first identify their cause. To do this, we will analyze in turn all the steps that need to be performed for diagnosis.

If your computer does not respond in any way when you press the power button, first you need to exclude possible problems with meals. To begin, connect the power supply to your laptop and make sure there is power at the outlet you are using to charge.

First, let's define our problem a little. If the laptop does not turn on at all, i.e. does not show signs of life, then the problem is definitely hardware. If it comes to Windows boot but then something goes wrong, freezes, reboots, then it’s 50/50. Next, I will describe the diagnostic steps, and you can skip those problems that you do not have. Accurate diagnosis of a fault is already half the repair.

The laptop does not turn on and shows no signs of life

In most cases we have problems with nutrition. The first thing you need to do is connect the laptop to the power supply and check that there is voltage in the outlet :) . Typically, power adapters have a light on them to indicate they are working. And on the laptop there is a light indicating that it is connected to the network and/or the battery is charging.

Then check the functionality of the power supply (the indicator on it should be lit), as well as the correctness of its operation (to do this, try a working power supply similar to yours). Prove

If your laptop screen does not turn on, then the first thing you should try is to reset the hardware settings. If this does not help, then you will have to look for other causes of the problem, which may be so serious that you cannot do without a trip to the service center.

Reset settings

A hard reset helps in most situations where the screen does not work. To execute it:

1. Disconnect the charger from the laptop.
2. Remove the battery from the laptop.
3. Remove any residual charge and reset the hardware settings by holding down the power button for 20-25 seconds.
4. Place the battery back into the laptop and connect the charger.

If a window appears asking you to select a boot mode after an incorrect shutdown of the device, select the normal Windows startup.

Checking the laptop display

If after resetting the hardware settings there is still no image on the screen, then try to determine which component has failed: the video card, matrix or other part of the display. Will help you do this external monitor. For example, on the ASUS website in the support section it is recommended to do the following:

1. Connect an external monitor to your laptop using the existing interface - HDMI or VGA.
2. Turn on your laptop. Using the combination Fn+F8, select broadcasting the image through the connected monitor.

If on external screen If the image does not appear, then the problem lies in the operation of the video card. This is also true for laptops from Lenovo, Acer and other manufacturers. If the picture is displayed on the monitor, then you should further look for a problem in the laptop display. The check should be carried out if the laptop's fan is noisy, the indicator lights up, or there are other signs that the laptop is turning on. If there is nothing like that, then perhaps the problem is not in the display - the entire laptop is not working.

Resetting BIOS Settings

If the problem occurs after changing BIOS settings, then you can try to roll them back to the factory state. Using a keyboard to do this will be problematic, but possible. The BIOS has hotkeys that are responsible for performing certain functions. A factory reset is usually done using the F9 key.

In theory, you can enter the BIOS by pressing the Delete key, then reset the settings (F9) and save the configuration (F10). But in practice, there is a high probability of missing the right moment, so it would be wiser to reset the settings by removing CMOS batteries, in which the BIOS settings are stored.

The main disadvantage of this method is the need to disassemble the laptop. But you will be sure that BIOS settings reset, and if the cause of the black screen was incorrectly set parameters, the problem will be resolved.

Reinstalling the RAM stick

If the problem occurs after cleaning the laptop, then you should disassemble the laptop again and make sure that you installed all the modules correctly and connected the necessary cables. Therefore, for proper disassembly/assembly of a laptop, it is recommended to use the manufacturer’s manual - then the likelihood of an error occurring is significantly reduced.

In some cases, reinstalling the RAM strip can help solve the problem of no image on the laptop screen. This is especially true if liquid has been spilled on the laptop keyboard, or long time was in a damp room, after which malfunctions occurred.

After reassembling the laptop, try turning it on again. If the black screen remains, although the laptop turns on and continues to work without an image on the display, then contact a service center. Possible following reasons problems:

• Damage to the display cable.
• Keyboard short circuit.
• Inverter failure.
• Backlight lamp failure.

These faults are unlikely to be resolved on your own; qualified assistance using special tools is required. The worst thing that can happen to a laptop is failure motherboard. But then he will not show any signs of life. In any case, diagnostics at a service center will reveal the exact cause.

Problems resuming from sleep mode

If the screen remains black when resuming from sleep mode, the first thing you should do is check your video card drivers. Software there must be latest version and fit the system. You can download the latest drivers on the laptop manufacturer's website.

In some cases, the problem is caused by improper sleeper support. Windows mode input devices. Exiting sleep is done using the touchpad (mouse) or keyboard. If connected external device, then it can block the laptop from waking up. To fix this flaw:

Save the configuration by clicking "OK". Do not prevent the mouse and keyboard from waking up the laptop at the same time, otherwise you will not be able to wake the computer from sleep. Set the ban on both devices in turn, checking if there is a positive effect.

Laptop overheating

If the screen on your laptop goes blank during operation, then most likely you are faced with overheating of the equipment. First of all, you should check the temperature of the video card. Use for this free utility Speccy.

If you see that the video card is too high temperature(you can see the maximum permissible value in the specifications on the manufacturer’s website), then you should check the laptop’s cooling system. Sometimes it is enough to simply clean the cooling system, but if the power installed coolers is not enough, then try using a cooling pad or installing more powerful fans.