The computer turns itself off after a while. The reasons for the sudden shutdown of the computer. Why does the computer turn off after a certain time

03.03.2017

If a computer or laptop immediately turns off or reboots when turned on, without even starting to load the OS, then this is in most cases a problem with the hardware. Also sometimes it can be caused by incorrect settings BIOS, but only if you have made any changes there before.

More often, a similar problem occurs with old computers, the components of which have not been cleaned of dust for a long time. Fortunately, it can be solved even at home, spending a minimum of time and financial resources. But in some cases, it will be more expedient to replace the computer or part of its components.

Causes of malfunctions

An endless turning on and off of a desktop or laptop can occur for the following reasons:

Most often, the reasons for this behavior of the computer lie in a problem with components. Before carrying the device for repair, it is recommended to clean it from the inside of dust, check how correctly the RAM modules are inserted and whether there are any deformations on the capacitor.

Method 1: configure the BIOS to work correctly

If you previously made changes to the BIOS and after that the computer stopped turning on correctly, plus you are sure that the rest of its components are in good working order, then the problem definitely lies in the last settings.

There are two ways to solve this problem:

Light. If the computer restarts on its own only after a while, then you can enter the BIOS using the standard method.
Complicated. The computer does not enter BIOS or reboots / shuts down immediately after being turned on. You will have to reset the settings by opening the case and "take" with motherboard... It is recommended to entrust this work to a specialist, so as not to make things worse.

Solving the problem in an easy way:

The hard way:

Do everything as carefully as possible so as not to damage the plugs themselves and the cap, which can cause the motherboard to be completely inoperable. It is better to entrust any work with components to a specialist.

Method 2: check individual components

First of all, clean the inside of the computer / laptop from dust. If there is a lot of dust, then after removing it there is a chance that the computer will turn on normally. Clean dust with a brush, dry microfiber cloths, vacuum cleaner. Do this carefully, preferably with gloves. Use the vacuum cleaner at minimum power. If cleaning from dust did not help, then pay attention to the modules with RAM and the power supply.

Solving problems with RAM:

To check if a faulty power supply is causing the problem, borrow it from someone and replace it with your own. Replacing the power supply is a simple procedure, the only thing you need to do is plug the wires into it, by analogy with how they were stuck into the previous block.

If the computer turns on without problems with a new power supply, then this indicates the need for a complete replacement of this element. Nice block food is not very expensive. It is recommended to consult with a specialist when choosing, because it is advisable to take into account the characteristics of the main components of the computer (motherboard, cooling system, etc.).

Method 3: troubleshoot overheating problems

If the reason is overheating, then the shutdown / restart of the computer does not occur immediately, but after 10-30 minutes. In this case, the OS boots without any problems, which allows you to check the heating of the equipment. To do this, download the AIDA64 utility to your computer. It weighs about 50 MB, downloads and installs quickly, however, the program is paid, so you can use it only for a limited period.

In the program interface, in the left menu, open the tab "A computer" and there select "Sensors", after you will be shown the current temperature of the processor and video card. If it is above 60 degrees (processor) and 80 (video card), then you need to take action.

Sequencing:

Conclusion

In some cases, a spontaneous shutdown of the computer immediately or after a short time after switching on can be eliminated by yourself. If nothing works for you, then it is recommended to take the device to service center where it will be repaired within a few days.

Greetings to all! In this article I will tell you why the computer turns off by itself. Often, diagnostic measures and PC repair involve searching for an answer to a fundamental question: why does the computer turn itself off? This is a fairly common problem with today's PCs.

This article will explore common use cases for shutting down your PC yourself and how to solve them.

The computer shuts down by itself while playing

Some people, when their computer turns off by itself, in such cases, begin to blame the video card. However, it should be noted that in this case it is necessary to consider it only after completing the check of two components of the computer. As a rule, a faulty video card causes, but not shutdown.

Most likely, the power supply is out of order.

If your PC systematically shuts down during the game, then the power supply may be to blame. There are two possible reasons. The first is that the video game loads the work of the video card, as a result of which the power supply, which is not provided for such a huge load, simply cannot withstand.

Because of this, an overload occurs system unit... For what other reasons can the computer turn off? On this topic! If you are interested, you can find out, and more.

Problems with the processor itself.

This is one of the common reasons. More precisely, its peak temperature. This is also due to the increased load - during the game, the requirements for the power of this computer component increase. As a consequence, the temperature rises. If the cooling system on the CPU socket is unsatisfactory or of poor quality, then protection is activated, i.e. The PC turns off immediately.

These symptoms do not have to be related to video games. This can happen as well NS when watching movies or activating "heavy" software products- all of this entails a high load on the CPU.

The computer restarts on its own by itself

This case is somewhat more complicated. Other system nodes are added to the above factors, which can cause the PC to malfunction. These include the motherboard or RAM ( RAM) computer.

Memory problems.

The symptomatology of a failed RAM is different. It includes system freezes, "braking" of software products and video games, and even the notorious overload of the PC. I recently told, and also said, be sure to read it.

However, it is necessary to check the OP first of all, since it is not difficult and the process itself will take less time than diagnosing the motherboard.

Problems associated with a defective motherboard.

When you are convinced that everything is fine with the RAM, we recommend focusing on the "motherboard". Only a specialist can handle this procedure; an unknowing person will not undertake anything useful. Regardless, we will try to talk about specific measures in the appropriate chapter. However, now we propose to deal with the symptoms that will help to establish that when activated, the PC turns off due to not correct work motherboard.

The first factor is that the operating life of the "motherboard" is coming to an end. In this case, its repair is impractical, since it will be easier to buy a new one. If your PC isn't that old, just buy a replacement.
The second factor is minor cracks in the PCB soldering. There are already 2 options - this defect will either go away on its own (after a certain period of time), or you will need to purchase a new board.
The third factor is incorrect work capacitors on the "motherboard". This can be cured by replacing the capacitors by soldering.
Fourth factor - In case the PC shuts down during boot operating system, then, perhaps, the chipset on the board is undergoing overheating. This can be easily checked using a multimer.

PC restarts for other reasons

In reality, there are many reasons, and if you do not have the knowledge and testing skills, then seek help from a knowledgeable specialist.

In addition to the above problems, self-shutdown also occurs for the following reasons:

The wiring is out of order.
The extension cord is out of order.
Dust has accumulated in the system unit.
Changes in electrical voltage.
Reducing the voltage in the power grid.

It is also better to take this into account, besides, checking the listed reasons will not take much of your time. It should be noted that there are factors of a program nature. For example, if the PC shuts down every two hours, then it is probably infected with viruses.

How to find out why a PC shuts down spontaneously

Let's consider checking the factors that caused the permanent shutdown of the computer. You can check what is failing by replacing the suspect system node. However, first it is recommended to clean the computer of accumulated dust.

To remove from the number possible reasons processor, you need to change the thermal paste and conduct a test using special software products, for example - S&M. But it is best to find out the heating temperature of the processor through the BIOS.

The RAM is checked using the MemTest86 program. When there is critical errors you can think of a malfunction of the OP.

The power supply is checked with a multimeter. Of course, only specialists have access to it. Do not poke into equipment operating under high electrical voltage without special skills! This is a golden rule that must always be followed.

The motherboard can be easily checked visually, look for swollen capacitors on it. But it is unlikely that it will be possible to find microcracks and chips. If it's all about them, then feel free to throw the board away.

All procedures are replaced with one single check - excluding the suspected element, and replacing it with one hundred percent working. Although not everyone can afford this method, it works and is easy to implement. This is especially true of the motherboard, the symptoms of which are so diverse that you can replace half of the system components of your computer before you get to it.

I hope such a huge article was useful to you and you found out why the computer turns off by itself during the game or just like that. I suggest you subscribe to new blog articles and receive them in your mail. To do this, enter your email at the end of the article. Do not forget to ask questions in the comments, as well as not give up your wishes. I wish everyone peace and health in families!

From Uv. Evgeny Kryzhanovsky

In this article, we will look at the main reasons why a computer may turn off by itself. You were working in a program or playing a game, and then, for no reason, no reason, the computer just turned off? And even if this is not the first time, do not be alarmed. Let's deal with the problem that has arisen.

Poor cooling of parts

The first reason why the computer can shutdown spontaneously is poor cooling of the parts. In order for them to work stably and not overheat too much during operation, active or passive cooling is installed for them.

Make sure that the system unit is not covered on all sides: furniture, cabinet partitions, and so on. It should stand where there is free air access. Otherwise, it can often overheat, because the warm air simply has nowhere to go.

Then remove the side cover of the system unit and turn on the computer. See if all fans are in working order: for the video card, processor, on the case. If the fan on the case does not work, then for better cooling of the parts, you can simply leave the side cover of the system unit open. If the fan does not work, for some individual element, then it is better to replace it with a new one.

Also, pay attention to the dust inside the system cabinet. If a considerable amount of it has accumulated there, then it is better to clean the parts. After all, dust interferes with the dissipation of heat when heating elements, because of this, they overheat and spontaneous shutdown of the computer.

In the off and de-energized state of the system unit, scroll all the fans with your finger. They should not spin with difficulty and make incomprehensible sounds. Otherwise, coat them with sewing machine oil.

Look also at the state of the thermal paste - this is a viscous substance that also participates in the process of heat transfer. If it is already dry, then it must be replaced.

To prevent the computer shutdown due to overheating in the future, install the program for monitoring the temperature of the CrystalDiskInfo processor. In this case, the temperature will be displayed in the tray.

Voltage drops

The second reason due to which the computer can turn off by itself is power surges in the network. And you may not even guess about it. For example, you are working or playing at the computer, at this time, someone from your family turned on the electric kettle in the kitchen, or the refrigerator started working. As a result, a power surge occurs, and the computer shuts down safely.

If everything is exactly like this - the computer turns off, if any other electrical appliance is connected to the network, then it will not be superfluous to purchase and connect an uninterruptible power supply.

Swollen capacitors

The third reason is swollen capacitors. Open the system unit and look at all the capacitors installed there. Their top should be flat. If the cap of the capacitor is swollen, or there are drips on it, then it may be the reason for the computer to shutdown spontaneously.

In this case, you need to buy suitable capacitors and re-solder. If you are not strong in electronics, then it is better to find knowledgeable person or give the system unit to a service center.

Weak power supply

The fourth reason is a weak power supply. If you run any game or program that requires large computing costs, then the computer may simply not have enough power from the power supply, as a result - it will turn off.

Graphics card problems

She is responsible in the computer for all graphics, that is, displaying images, videos, games on the monitor. And if it is out of order, the computer can also turn off.

Very often, users are interested in the question: why the computer turns off during the game. The reason may be a power supply that cannot withstand the load, and a video card that does not pull graphics. Elements in the system unit may also overheat.

Bad hard drive

It is from the hard computer that it reads all the information necessary for work. If, while working at the computer, you hear a strange sound, then it is better to think about purchasing a new hard drive. Over time, the media appear broken sectors, and when the reading head hits them, the computer may shut down spontaneously.

Driver conflicts

The seventh problem is conflict installed drivers... Drivers link the hardware and software of a computer. And if they are poorly compatible, then this can lead to a shutdown of the computer. Try reinstalling conflicting drivers:, and using special programs:, and others.

Viruses

And the last reason I want to describe is viruses. The fact is that they, like programs and games, can greatly overload the system, as a result, the computer will simply turn off. The simplest solution is to scan your computer with an anti-virus program, then delete the infected files found. If it helps, then great, if not, let's move on.

Try making a last known good configuration. To do this, restart your computer, and during the loading of the operating system, press F8 frequently. In the window that appears, use the arrows to select Last Known Good Configuration... If the problem persists, move on.

In the case when you cannot use the computer for 5 minutes, then it turns off, we will try to remove viruses in safe mode. Press F8 again during reboot, then select « Safe mode» ... If the computer boots up and works fine, great. Run the antivirus program and remove any viruses found. For this, either the AVP Tool is best suited.

There are enough ways to help you. Follow the link and read the detailed article about it.

I hope now you can figure out the problem: why the computer turns off by itself. If you know any other reasons, or you have any questions, write in the comments.

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The most common reason your computer might shut down is a power problem and power surges. However, this problem is solved by purchasing an uninterruptible power supply unit, the so-called UPS. Any user can handle this. We will consider other, more specific options.

Overheating of computer components

Computer users often forget that it is necessary to service the system unit at least once a year, to clean its elements. Over the course of several years, a lot of dust can accumulate in them. There are times when it is difficult even to turn a particular cooler. Dust and dirt will reduce the fan speed, which can cause system components to overheat. Such dust, for example, interferes with heat dissipation during the operation of the central processor. As a result, its temperature rises.

Overheating also occurs due to the fact that the system unit is located in the niche of the computer desk, where it closely adjoins the walls. It is necessary that the computer is located at least 15 cm from the nearest wall. This condition can be neglected if the components of the small unit are not the most powerful.

Overheating of the central processor can happen due to the long-dry thermal paste. It needs to be changed at least once every two years.

How do you diagnose this problem? Various utilities for temperature monitoring will come to the rescue. Such programs are available on the official websites of motherboard manufacturers. For example, for Gigabyte motherboards this utility is called System Information Viewer. It is part of the APP Center complex of utilities. It can be used to configure alerts for overtemperatures of the CPU and motherboard. Typically, the maximum allowable temperature on the processor die is available on the manufacturer's website.

It is also necessary to monitor the rotation speed of the processor cooler fan. After all, the smaller the average, the longer it will last. In this utility, the recording of parameters in time is also available.

Therefore, you can load the processor with some resource-demanding application or game and monitor its temperature. Then analyze the data obtained and make sure that the computer turns off due to temperature due to excessive heating of the processor.

The video card can also overheat, therefore, it is necessary to control its temperature, which can reach high values - about 100 ºС.

Cases where overheating occurs due to overclocking of the processor, RAM or video card are not considered here. These methods of increasing system performance are available mainly to enthusiasts and avid gamers.

Faulty motherboard

The motherboard is the most complex device in a computer, on which various elements are located. She is also responsible for distributing power to the components. Often the motherboard fails due to the swelling of the capacitors and the leakage of electrolyte from them. Such damage also causes the computer to shutdown spontaneously. Normally, the surface of such cylinders is flat. A swollen capacitor indicates a serious problem with the board. But she can still work for a while. If traces of leaked electrolyte are visible, then this is a reason to visit a service center.

Power supply failure

The power supply can also cause the computer to shutdown unexpectedly. This can occur if its power is incorrectly calculated at the assembly stage or after an additional module, for example, a powerful video card, is added to the existing system. More power may be required if you replace, for example, a 4-core processor with an 8-core one. This usually happens when the user loads the video card with demanding games or runs several resource-intensive applications at the same time. In idle mode, everything works fine. In this case, it is necessary to replace the power supply unit with a more powerful one.

In case of an emergency shutdown of the computer, the cause of overheating of the power supply due to accumulated dust or inappropriate temperature of the fan speed cannot be ruled out. At one point, the cooler will stop rotating, which can lead to a pop, after which it will not even be possible to apply voltage to the power supply. To prevent such a situation, it is better to take care of replacing the cooler in the power supply in advance. The costs for this will be disproportionately lower compared to other components.

A sudden shutdown of the computer can also be associated with the drying out of electrolytic capacitors, which affect the electrical parameters of the device as a whole.

Impact of RAM on system stability

Let's say the motherboard BIOS hasn't been updated for several months. During this time, a utility was installed that is responsible for optimizing system components, for example, it monitors the processor and RAM voltages, adjusts the speed of the case fan and the CPU cooler. You can also use it to select the XMP RAM profile (specific frequency and memory timings). Depending on the profile, the utility also changes the corresponding voltages. Gigabyte calls this utility EasyTune.

For example, Intel processors officially work correctly with DDR4 memory frequency up to 2400 MHz. Certain voltages correspond to this frequency. With an increase in frequency, even with the help of the XMP profile, the RAM and the processor begin to work at other, higher voltages, which can affect their service life. Therefore, some users begin to lower them, which can also lead to an unexpected reboot of the system due to insufficient supply voltage of individual elements. By adjusting such parameters as “VCCIO Voltage”, “System Agent Voltage” and “DRAM Voltage”, the stability of the system as a whole can be achieved.

Then after BIOS updates all its parameters are reset to default and you need to re-configure the system. To facilitate this process, it is better to write down the values of these parameters separately in advance.

Shutting down your computer after installing a new driver, program, or game

When a new version of a driver or program is installed, it makes some changes to the system. Drivers may be incompatible with old hardware this computer and the utilities create certain errors in Windows.

Running a modern game or video content at a high bit rate can load the CPU up to 100% of its performance, causing it to overheat, and the system responds appropriately by shutting down the computer. To prevent this from happening in the future, you must uninstall such applications.

If the shutdown occurs after installation new version Motherboard BIOS, you can reset the BIOS to factory settings or return previous version... In the first case, a special jumper or pulling out a flat round battery will help. In the second, it is necessary to use special program for BIOS flashing, but only if the old one was saved before installing the new version. For Gigabyte, this is @BIOS utility.

Sometimes, updating drivers or BIOS can, on the contrary, allow you to no longer allow an unexpected shutdown of the computer. You must constantly monitor for updates.

With the installation of a driver or program, the user can also get a virus that targets system instability. This may also cause the computer to restart. Check the system for possible viruses with an antivirus program. It should always be enabled, so that while downloading application distributions or drivers from the Internet, you do not run into a virus attack.

These are just the most common reasons for a sudden shutdown or restart of your computer. But, following these recommendations, you can prevent such a situation or minimize its consequences. The main thing is to carry out periodic maintenance of the components of the system unit, constantly update the databases of antivirus programs, drivers and not overclock the components of the system.

Often, a computer that worked normally before suddenly starts to shut down spontaneously. Determining why a computer shuts down on its own is not easy. But to eliminate this kind of problem, when their cause has already been identified, is within the power of almost any user who has minimal knowledge of the hardware of the device and the principles of software operation. It is about the reasons for the occurrence of such a phenomenon and the methods of their detection that will be discussed below.

There are several main reasons due to which a spontaneous computer shutdown may occur:

Overheating of PC components

If spontaneous shutdowns start some time after starting work, the problem is most likely associated with overheating of certain PC components. The most common causes of a malfunction in this case may be faulty cooling fans or a layer of dust on the radiators.

You should pay attention to exactly when the computer shuts down:

Soon after loading the operating system, shutdown is preceded by short-term, short-lived system freezes - most likely, the central processor overheats;
After receiving a serious load, for example, the simultaneous launch of several "heavy" applications - overheating of the processor or video card;
Graphics card cooling issues are the reason why the computer shuts down while playing games.

Most in a simple way The solution to the problem will be a visual inspection of the computer hardware, followed by maintenance of all cooling systems and cleaning the PC. Strong contamination of radiators is not allowed, fans installed on top should rotate evenly, without jamming and sharp noises.

Service is carried out in the following order:

Expansion boards are dismantled;
Power loops are disconnected from the motherboard, hard and optical discs, the board itself is removed from the case;
The existing cooling systems are dismantled;
The radiators are cleaned of dust and dirt, this operation is convenient to carry out with the fan removed using a small-width paint brush (20-30 mm), it will be useful to brush off dust from the entire surface of the motherboard along the way;
The contact surfaces on the radiators, the central processor and the video processor are cleaned of the old heat-resistant paste, followed by applying a fresh layer;
Defective or sticking fans are replaced with new ones;
Installation of all systems is carried out in the reverse order.

Important: It often happens that there is simply nothing to replace a stale fan. In this case, you can try to "reanimate" the old one. To do this, it is enough to remove the sticker or pull out the rubber stopper from its back side and drop 2-3 drops of machine oil into the opened hole, while scrolling the blades with your hand. Then put the plug in place or cover the hole with tape (it is better not to use the old sticker) and reinstall the fan.

Malfunctions of the mains and power supply of the PC

Often, especially in rural areas, the reason why the computer turns on and off immediately is the mains voltage. It's easy enough to check using a simple Chinese multimeter. The nominal mains voltage is 220 volts, the PC power supply must remain operational in the range from 200 to 240 volts. If the readings of the measuring device go beyond the specified range, you should either contact the management company (as an option: an electrician you know), or get a good voltage stabilizer.

Another common option for problems with the electrical network may be faults in the house wiring, for example, burnt out sockets or twists in junction boxes. It is worth paying attention to whether the computer shutdowns coincide with the moments of turning on / off powerful consumers of electricity: an electric heater, an electric stove or a kettle, a refrigerator, etc. If such coincidences occur, you should inspect the home electrical wiring yourself or with the help of a specialist. This is especially important because this kind of malfunction is fraught with much more serious consequences than computer problems.

The most common problems with the power supply are as follows:

Overheating due to fan failure or heavy pollution;
Failure of circuit elements (usually capacitors);
Overload caused by installing new devices, such as a powerful video card.

The easiest way to check if there are problems in the power supply is by temporarily replacing it with a known good and, preferably, more powerful one. If after this the spontaneous shutdowns have ceased, the following should be done:

Check the operation of the fan and, if necessary, replace it, or try to reanimate, as described above;
Clean the internal elements of the unit from dirt and dust. This can be done by removing the top cover and using the same narrow paint brush;
Inspect the capacitors installed on the board, swollen or with liquid drips under them, replace with new ones;
Disable recently installed devices: if after that the system's performance is restored, the replacement of the power supply unit cannot be avoided - it is serviceable, but not designed for the increased power consumption.

If all these steps did not help, the power supply unit requires replacement or qualified repair.

Important: When examining the PSU capacitors, you should pay attention to system board, especially on capacities installed in the power supply circuits of the processor and video card.

Several Yet useful tips specifically for the situation when the computer turns off during the game:

free from physical defects

Another reason why the computer itself turns off during operation may be viruses and other programs containing malicious code. There are hundreds of thousands of such programs, and the list continues to grow steadily. Digressing a little from the topic of the article, we note that there are many ways to introduce viruses into the system. This can happen, for example, when downloading programs from the Internet or installing from pirated disks, when connecting removable media and mobile devices... Therefore, the presence of an antivirus program today is an indispensable attribute of the system; moreover, the program itself and its signature databases must be regularly updated.

How to cure a computer infected with a virus

If, in search of the reasons why the computer turns off by itself, no defects in its hardware have been identified, it is necessary to diagnose for the presence of viruses. This will require boot disk or a USB drive ("flash drive") containing an anti-virus software... You can find the appropriate software and instructions on how to work with it on the website of any company that produces antivirus software. It goes without saying that this work must be done on a "clean" computer.

After creating a "healing" disk, you need to boot the infected computer from it. This will require you to enable boot from DVD-RW or USB drive in BIOS. After downloading, you need to run antivirus program in the "scan and disinfect viruses" mode. This process can last a considerable time, up to several tens of hours, depending on the capacity. hard disk and the amount of information stored on it.

When you receive a message about the end of the scan, you should restart your computer. More often than not, all the troubles end there. But, often, when an unrecoverable virus is infected system files, The OS will not be able to boot and will have to be reinstalled.

Little troubles

Although the above was about fairly simple situations, in practice it is often even simpler. For example, the on / off button may just stick. on the front panel. In principle, it is from this button that you can start troubleshooting. To check it, you can turn off and start the computer by bridging the corresponding contacts with a screwdriver. If it stops turning off, all that remains is to replace the button.

If there is no desire to go to the store for a penny part, the button can be carefully disassembled by tearing off the caps of the small plastic rods that hold it in the assembly. Rinse the flexible metal plate inside with alcohol or cologne, put everything back together and slightly melt the remaining rods with a soldering iron. As a temporary option, instead of the power button, you can connect the Reset button. By the way, sticking of this button causes spontaneous reboots.

Another interesting defect that the author of this article once encountered. One day, after two days of unsuccessful troubleshooting, when all the main components of the motherboard were checked using specialized equipment, it turned out that the problem was in the speaker soldered into it. In its place, another was installed, roughly yanked out of a cheap Chinese alarm clock that had fallen under the hot hand.

Another, fairly common situation that repairmen often encounter is a computer installed in a narrow niche closed on all sides except the front. Sometimes, the role of such a niche is played by the compartment for installing the system unit in the computer desk. What can you do, not all furniture makers understand computers. In this case, it can be quite difficult to prove to the owner that his desk needs to be improved by using physical force to remove a piece of fiberboard behind the computer and that there is a small gap for interface and network cables insufficient for adequate ventilation.

Considering the above, it is best to use a diagnostic utility such as AIDA. The program does not require installation and is launched by clicking on the executable file. To control the temperature of the main components of the PC, select the "Sensors" item in the program menu and check their readings. At the same time, it is advisable to properly load the system by running one or several resource-intensive programs, for example, scanning for viruses. It is desirable that the readings of the sensors never exceed 70 ° C. In some systems (most often AMD developers are guilty of this), the processor temperature is allowed up to 100 ° C, but this is undesirable. In any case, the readings of the sensors at 70 ° C or more are a reason to think about the state of the PC cooling system.

In conclusion, I would like to recall a phrase about the fact that it is easier to prevent any disease than to cure. This statement is true not only for humans, but also for computers. Therefore, in order not to worry about the question of why the computer turns off by itself, it is worth monitoring its state from time to time. To do this, you can use the built-in BIOS tools, which display the readings of the temperature sensors of the chipset and the central processor. It should be borne in mind that these readings can be underestimated, because when viewing BIOS settings, the processor load will be minimal.