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The computer does not even boot into the BIOS. BIOS does not boot: instructions for solving the problem

BIOS is an intermediate link between the digital brain of a computer and the human mind. The basic input/output system provides the conversion of human-readable keyboard commands into digital processor codes. And back, after transferring the processed information, inner work The PC appears on the monitor screen using the graphical interface of the operating system.
Bios won't load? Then the operating system will not work either. In fact, the malfunction is quite rare. First of all, it is likely to assume that the problem is with the system battery. Open the system unit and replace the battery with a new one. If there is nothing to change, you can simply remove and reinsert the battery. This will return the BIOS to factory settings.
Try starting your desktop again. If the problem was a dead battery, everything will start working normally.

Cooling the system unit
The next diagnostic stage is checking the cooling system. PCs are extremely sensitive to temperature conditions. The slightest deviations lead to immediate automatic activation of protective systems.
Check how the coolers on the motherboard work. It is likely that if the equipment has been in operation for a long time, the fan lubricant has dried out, and therefore there is no proper cooling effect. The solution is to lubricate the cooler or, which is simpler, replace it with a new one. The cost of fans is not high at all. It’s easier to replace it with a new one for a hundred rubles in five minutes than to spend several hours of unpaid work on repairs.
Insufficient cooling of the system unit often occurs after an upgrade, when new modules were connected to the PC. At the same time, a problem with nutrition arises. If the increased consumption was not taken into account when expanding the configuration electric current and increased heat generation, then the BIOS may not start for these reasons. To check, you need to replace the computer's power supply with a more powerful one.
Motherboard failure
Since the BIOS is located on the motherboard, it is logical to assume that the boot problems are caused by faults on the mainland itself. First, perform a visual inspection. The presence of swollen electrolytic capacitors clearly indicates a malfunction.
Theoretically, an advanced user can independently replace unusable capacitors. You just need to have the right tools and an electronic parts store somewhere nearby. Otherwise, so much time and money will be spent on do-it-yourself repair, that it would be easier and cheaper to go to a service center.
Another common cause of motherboard malfunction is burnt contacts in bridges or burnt out tracks. All this can usually be seen upon examination. If damage is found, you can safely take the device to the workshop.
Malfunction of other computer units
The reason that the BIOS does not load may also be due to malfunctions of other computer units. Checking and searching for the causal block is usually done by connecting a computer in the most minimal configuration.
Motherboard.
Power unit.
Speaker.
One of the RAM panels.
If, after starting in this state, the BIOS starts, the problem is in one of the other units of the system. The connection starts with the video card, then the hard drives, and so on until the problem resumes.
It is likely that after such manipulations the problem will disappear by itself, and the culprit will never be discovered. In this case, it is logical to assume violations in the contact connections. After disconnecting and reconnecting, the contacts were restored and everything started working normally.
If there is a problem with the contact connections, all that remains is to open the system unit and remove all the cables, clean the contacts and remove dust. After preventing the next element, you can try to turn on the computer again. This way you can more reliably detect the reason for the BIOS not loading.
Most often, such problems arise if the user neglects to clean the device from dust. For normal operation, it is necessary to clean the system unit at least once a year. Especially if there are pets in the house, then there is a high probability of hair getting into the computer.
Very often the BIOS does not load due to problems with the hard drive. Although, in this case, some messages appear on the screen after turning on the computer. If after disconnecting hard drive The BIOS started loading normally - the problem was with the drives.
The operation of the motherboard and BIOS is also greatly influenced by the video card. Problems with the video card primarily lead to the fact that the BIOS will not start.
If the BIOS does not start even in the minimum configuration of the computer, there is a high probability of a malfunction of the processor or the motherboard itself. There are only two options: either replace it with new ones, or send it to a service center for repairs. Unlike a hard drive, the cost of repairing a motherboard is significantly lower than buying a new one.
If the processor malfunctions, there may be no sound signals. One more possible reason, leading to Bios inoperability - accumulation static electricity on the central processor. To remove static, you can carefully run a metal screwdriver along the processor legs. This simple procedure sometimes restores normal BIOS operation.

BIOS is a program that is responsible for the initial startup of the operating system as soon as the personal computer is turned on. Its name stands for "basic input/output system". What is BIOS in a computer? Why is it needed and what functions does it perform?

Its main task is to find faults. This is done by testing the device. If everything went well, the operating system loader is searched for and then launched.

Now that we have figured out what a BIOS is in a computer and what it is responsible for, we can move on to the question of the reasons for boot failure.

Signs of errors

You may be concerned about a system malfunction when one of the following events occurs when you start your computer:

  • when the power button is activated there is no reaction (it is also worth checking how it is connected);
  • the computer starts, but the screen does not react at all, and the BIOS itself produces error signals;
  • When the device starts, an error message appears; keyboard buttons do not respond;
  • the computer starts without errors, but too quickly; without the ability to load the BIOS.

Key input error

The first thing worth noting is that the hotkeys for launching the program are different on each motherboard. And sometimes, the combination required to launch the BIOS may not be displayed at all on the screen when the device starts. This makes the task much more difficult. Therefore, to select the necessary key combinations to enter the BIOS, you will have to choose from:

  • Del (on some keyboards - Delete).

If none of them fit, you should search the Internet for the motherboard model. Most often, this characteristic can be found in the description on the manufacturer’s website or on various thematic forums.

Port problem

This may be the simplest reason why the BIOS does not load. The problem may be that the USB port to which the keyboard was connected has stopped working correctly, and, consequently, the device itself has stopped responding to any interaction with it.

The solution is extremely simple and obvious - change the keyboard connection port to one that works reliably. If we're talking about For a desktop computer, you should use the USB located on the motherboard. Unlike those installed in the case, they work longer and more stable.

Now you can restart the computer and load the BIOS again.

Input device problem or error

Before you start working with this program, you should definitely make sure that the input device is working. And it doesn’t matter whether it is necessary to check some data on the system or install new BIOS firmware (this will be discussed a little later). If suddenly nothing happens when you press the correct key, you should perform several actions:

  • check the functionality of the USB ports (described above);
  • make sure that the keyboard itself, as well as the necessary keys, work stably.

There are also various ways how to enter BIOS without a keyboard. It is also worth noting that it is not advisable to use a wireless keyboard when working with the BIOS. Only if there is no wired device, although this is not so critical.

There are situations when the BIOS firmware is too old and does not support the USB interface for the input device. To fix this you will have to use a keyboard with a PS/2 connector. You can also purchase a corresponding adapter for a modern port.

Errors in working with devices

IN specific case the problem is that one of the devices connected to the computer does not work correctly and leads to errors. Because of the latter, the BIOS does not load.

To check for startup errors, you should perform the following steps:

  • disconnect all drives, solid state drives and hard drives;
  • remove all devices connected to the motherboard;
  • disable discrete video card.

If the problem is solved, you should start connecting all devices one by one. This will help determine why the BIOS does not load. Once the faulty part is identified, you can contact a repair service to find out whether it can be fixed or not.

Audio prompts

The following often happens: the computer starts up, the BIOS is called, but signals are emitted instead, and the program does not work. In this case, you need to record the type of signal and turn to the Internet for help.

There you can find tables that provide a list of all the signals that the system can emit in such a situation. Next, you just need to find your signals among the others and find out what problem they indicate and how else to solve it.

Problem with program settings

A similar error occurs when the device user makes any changes to the BIOS itself. One solution to the problem may be to return the program to factory settings. You can do this as follows:

  • Open the system unit or unscrew the bottom cover of the laptop.
  • Find the CMOS button on the motherboard (located next to the battery). By default it is in position 1-2.
  • Switch it to position 3-4. Hold this for about 30 seconds.
  • Return to previous state.

Motherboard errors

This part is the most important part in any device. In essence, she is a computer. In the event that there is a suspicion that the BIOS does not load precisely because of it, it is worth performing several important operations:

  • Inspect motherboard. Various physical damage may appear on it. It is also worth checking it for oxidation and changes in capacitors.
  • If no changes in the structure of the part were found, it is necessary to carry out diagnostics. To do this, all devices that were connected to it are turned off. You only need to leave the processor and speakers to control audio signals. Connect only the monitor and the power cable from the system to the system unit.
  • Now you need to reset the settings. To do this, you need to remove the battery. After about 10 seconds, insert it into its original place.
  • You can start the device. If sound signals appear, the motherboard is functioning. Otherwise, you should think about replacing.

If such an important part breaks down, you should contact a service center. Perhaps it can be brought back into working order.

Is it possible to update the BIOS from a flash drive?

The BIOS installation procedure itself is necessary when the computer has an outdated version that requires updating. The reason may also be a conflict in the connected device or the system data has been damaged by a virus.

Now let's look at the algorithm of how to update the BIOS from a flash drive.

Determining the board model

It is worth noting that this is not so much a BIOS update as it is the installation of new drivers on the motherboard. You can define a model in the following ways:

  • if an expensive and professional part was purchased, then its full name will be indicated on the packaging, as well as in the accompanying instructions;
  • the same applies to boards in the mid-price category; their type is indicated on the front side of the box;
  • If the part came in a simple cardboard package or was installed in advance, you should turn to software:
  • to find out the motherboard model and BIOS version on Windows 10, open the “Run” command window by pressing the Win and R keys;
  • enter "msinfo32" in the line;
  • click "OK";
  • in the window that appears, find the line that will indicate information about the system, as well as BIOS version.

You can also use the "AIDA64 Extreme" program. It is paid, but has a trial period of 30 days. Is it possible to find out the board model using it? by going to the "Summary information" section. It will be in the list on the left. After this, you need to select the item with information about the system board.

Where can I get the firmware?

To update outdated version BIOS on Windows 10 must follow the following sequence:

  • enter the model of the mother card in the search engine and go to the manufacturer’s resource;
  • find the downloads section and select the required software;
  • in the new section, select the latest firmware that is marked “Instant Flash”; download;
  • Unzip the downloaded file onto a formatted flash drive;
  • insert it into the device that requires reinstallation and restart it.

The process of installing BIOS from a flash drive

Now you need to carefully follow the further algorithm of actions in order to install the new firmware without any problems:

  • As soon as the computer starts up, click the BIOS activation button. These can be (F1, F2, Del (Delete)).
  • Now you need to go to the "Instant Flash" section. The firmware version and the source of its storage (flash drive) will be recognized by the system automatically.
  • Next, select the drive with the recorded BIOS source, as well as the firmware file itself.
  • Press the enter key and wait for the program to install.

It is also worth noting that sometimes it becomes necessary to boot from a drive containing the installer. To do this, you need:

  • When the device starts, press the keys to activate the BIOS;
  • find the BOOT tab;
  • find Boot Device Priority in it; This menu sets the priority when loading devices connected to the computer. According to the standard, the first one always goes hard drive on which the operating system is installed;
  • Now you need to highlight this line;
  • then the flash drive with the installed file is selected and the enter button is activated;
  • Now you need to press the F10 key and leave the program menu, while saving the settings.
  • after the computer reboots, the installer recorded on the USB flash drive will be launched.

Important points

There are several rather serious comments regarding working with BIOS program parameters. They are given below:

  • It is not advisable to reinstall if the computer is stable. There is always a risk of harming the system, and therefore you should not resort to such serious actions if you are not sure that you can do everything correctly. Or that it is really necessary.
  • When downloading BIOS firmware, you need to pay attention only to full versions, not alpha or beta.
  • During installation or error correction, you must not disconnect the computer from power. Otherwise, irreparable problems may arise. It's also worth getting a source uninterruptible power supply.
  • Before installing a new version of the program, read the instructions for updating the motherboard firmware. Often it comes complete with the part.

BIOS is a basic input and output system that stores special algorithms necessary for the proper functioning of the entire computer. The user can make certain changes to it in order to improve the performance of the PC, but if the BIOS does not start, this may indicate serious problems with the computer.

There is no universal way to solve this problem, since, depending on the cause, you need to look for a solution. For example, in some cases, in order to “revive” the BIOS, you will have to disassemble the computer and carry out some manipulations with the hardware, while in others, it will be enough to simply try to enter it using the capabilities of the operating system.

Reason 1: Problems with components

If, when you turn on the PC, the machine either does not show any signs of life at all, or only the indicators on the case are lit, but there are no sounds and/or messages on the screen, then in most cases this means that the problem lies in the components. Inspect these components:


Physical damage to important computer components occurs, but main reason The impossibility of starting the PC normally is due to severe dust contamination of its insides. Dust can become lodged in fans and contacts, disrupting the flow of voltage from one component to another.

When disassembling the system unit or laptop case, pay attention to the amount of dust. If there is too much of it, then do “cleaning”. Large volumes can be removed with a vacuum cleaner operating at low power. If you use a vacuum cleaner while cleaning, be careful as you may accidentally damage the inside of your PC.

When the main layer of dust has been removed, arm yourself with a brush and dry wipes to remove the remaining dirt. It is possible that contamination has entered the power supply. In this case, it will have to be disassembled and cleaned from the inside. Also check the contacts and connectors for dust.

Reason 2: Compatibility issues

In rare cases, the computer and BIOS may stop working due to incompatibility of any component that is connected to the motherboard. Usually, identifying the problem object is quite simple, for example, if you recently added/changed a RAM stick, then most likely the new stick is incompatible with the rest of the PC components. In this case, try starting the computer with old RAM.

Less commonly, it happens when one of the computer components fails and is no longer supported by the system. It is quite difficult to identify the problem in this case, since the computer does not start. Various sound signals or special messages on the screen that the BIOS gives can be very helpful. For example, by looking at the error code or sound signal, you can find out which component is having a problem.

In the case of incompatibility of certain components on the motherboard, the computer often shows signs of life. The user can hear the operation of hard drives, coolers, and the startup of other components, but nothing appears on the screen. Most often, in addition to the startup sounds of computer components, you can hear some extraneous signals that are played by the BIOS or some important PC component, thus reporting a problem.

If there is no signal/message or they are illegible, then you will have to use this instruction to find out what the problem is:

If you completely assembled the computer (without finding a problematic element), connected all the devices to it and it began to turn on normally, then there can be two explanations for this behavior:

  • Possibly due to vibration and/or other physical impact on a PC, a contact from some important component has come out of the connector. In the actual disassembly and reassembly, you simply reconnected an important component;
  • A system failure occurred due to which the computer had problems reading a component. Reconnecting each element to the motherboard again or resetting the BIOS settings solves this problem.

Reason 3: System failure

In this case, the OS loads without any complications, work in it also proceeds normally, but when you need to enter the BIOS, you are unable to do anything. This scenario is extremely rare, but it does happen.

The method for solving the problem that has arisen is effective only if your operating system boots normally, but you cannot enter the BIOS. Here we can also recommend trying all the login keys - F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, Delete, Esc. Another option is to use each of these keys in combination with Shift or fn(the latter is only relevant for laptops).

This method will only be applicable for Windows 8 and higher, since this system allows you to restart the PC and then enable the BIOS. Use this instruction to perform a reboot and then start the basic input and output system:


If you have an operating system Windows 7 or older, and also if you have not found the item "Firmware and UEFI Settings" V "Advanced options", you can use « Command line» . Open it using the cmd command in the line "Run"(called by key combination Win+R).

You need to enter the following value in it:

shutdown.exe /r /o

After clicking on Enter the computer will reboot and enter the BIOS or offer boot options with entering the BIOS.

Typically, after such an entry, the basic I/O system will boot without any problems in the future if you are already using key combinations. If it is not possible to enter the BIOS again using the keys, it means that a serious failure has occurred in the settings.

Reason 4: Incorrect settings

Due to a failure in the settings, the hot keys for entering may change, so if such a failure occurs, it would be wise to reset all settings to factory settings. In most cases, everything returns to normal. This method is recommended to be used only in cases where the computer boots without problems, but you cannot enter the BIOS.

Updated: 12/26/2019 Published: March 13, 2018

Description

Every time you turn on the computer, the BIOS immediately opens (a blue window with settings). After exiting it, either the system starts or only the BIOS loads again.

Very often, this can happen with laptops from ASUS or Samsung.

Cause

Typically, the problem is caused by the BIOS not being able to find the device from which the operating system should boot. This may happen for the following reasons:

  1. The settings of the basic input/output system have gone wrong;
  2. There are no media to run the operating system or its malfunction;
  3. BIOS software error;
  4. Warning about computer malfunction - launching the menu indicates the presence of an incorrect setting, which can lead to failure of the PC itself. For example, incorrect bus frequency.

It is also possible that the BIOS start key (usually Del or F2) is simply stuck - because of this, the basic input/output system is constantly stuck.

Solution

Solutions are arranged in order of ease of diagnosis and likelihood of occurrence.

1. Enable Launch CSM (BIOS / UEFI mode)

In case of using systems that do not support UEFI (for example, Windows 7), it is necessary that the “Launch CSM” option is enabled (this option is responsible for compatibility with older operating systems). If it is disabled, first find the “Secure Boot” option - disable it and restart the computer. Then we activate Launch CSM. Afterwards you can try restarting the computer.

We check if there is a Boot Device Control section and the ability to choose between such parameters as: UEFI and Legacy, UEFI Only, Legacy Only. For older versions of the system, you should choose Legacy and UEFI Only or Legacy Only. For new systems you need to try different options.

Some BIOS/UEFI versions have an option to select the type of operating system - there may be Windows 8 (7) and Other OS options. For systems that do not support UEFI, select the last option.

Disabling fast boot may also help. To do this, in the BIOS we find the “Fast Boot” option (usually in the Boot section) and move it to the Disabled position.

2. Reset BIOS settings

First, we try to reset the settings in the BIOS itself. To do this, in the “Exit” section we find an option with a name similar to “Load Default”, for example:

If this does not help, try resetting the settings by removing the battery on the motherboard.

3. Checking the disk drive

We check the functionality of the disk on which the operating system (or bootloader) is installed. To do this you can:

a) See if the BIOS disk is visible in the partition Main.

b) Disconnect the disk from the computer and insert it into another, checking that it is detected and data can be read from it.

c) Boot the computer from boot Windows disk LiveCD and check the status of the media on which the system is installed, for example, using the CrystalDiskInfo program.

If the disk is not detected or its condition is determined to be critical, then the disk itself must be replaced.

4. Check the connection of the disk drive

Disconnect the hard drive cables from the motherboard and the drive itself on which the bootloader is located. We check that there is no dust in them and connect them again:

Also, connect the drive cable to another SATA connector on the motherboard. You can also try replacing the drive's power connector.

5. Set up the Boot section (boot priority)

The BIOS may constantly start because the computer cannot find the boot area and start operating system. In this case, the “Boot menu” may start immediately.

Go to the “Boot” section and check that the boot starts from the hard drive:

* if the disk is not in the list of launch devices, check the tightness of the wires. It is also possible that the carrier itself has failed.
* if the system has several hard drives installed, you need to boot the system from the one on which the bootloader is installed. If we don’t know what kind of disk it is, we try to set the priority to each of them in turn.

6. Change the battery

If BIOS settings appear every time after turning off the computer/power supply, this may indicate that the battery is dead. Also, a signal for the need to replace it may be an error CMOS checksum error.

To replace the battery, we disassemble the computer and find it on the motherboard. Roughly, it looks like this:

The battery itself can be purchased in many stores. The markings for different boards may vary slightly (usually CR2016, CR2025 or CR2032). The easiest way is to take out the battery and bring it to the store.

7. Checking the keyboard

If the BIOS launch keys on the keyboard are stuck (usually Del or F2 - full list in the article How to enter the BIOS), this can lead to it starting when turned on.

To check, we try to gently tap on these keys and, if this does not help, turn off the keyboard (the laptop will have to be disassembled for this).

8. Save the settings

The BIOS may appear constantly because you just need to save its settings one-time (for example, after replacing one of the components). To do this, go to the “Exit” section and exit, saving the settings. For example:

9. Turn off the computer

In some cases, the BIOS may malfunction. Most often, turning off the computer will help. To do this, turn off the computer, unplug the power cable, wait 10 seconds and turn it on again.

10. Blank disk (no operating system)

A similar problem will occur when the computer has nothing to boot the operating system from, since it is not installed on the disk. For example, when buying a new computer or replacing a disk. In some cases, due to damage to the file system and, as a result, loss of the system on it. In this case, you need to install the operating system on the disk.

The problem may also be due to damage to the operating system. You can try to solve the problem by reinstalling the system.

11. Computer overheating

We check the computer by touch. If it is hot, you need to let it cool (about 30 minutes). Then turn on the PC.

Severe overheating may be the reason that the cooling system is not doing its job. It is necessary to clean the computer from dust, replace the thermal paste and, if necessary, fans or coolers.

12. Update BIOS

To update the BIOS, download the latest version from the motherboard developer's website. Instructions are attached to the downloaded archive - we carefully study it and carry out step-by-step actions.

If you already have it installed on your computer latest version BIOS, then install it again (reflash the BIOS).

Question on the forum:

My screen doesn't show. I was advised to take the laptop apart and take a look. I've never taken a laptop apart. What does this mean for me?

You'll never get it together. 😀

Imagine this situation: one day you turn on your computer or laptop and see that it won’t start; Moreover, you discover that the BIOS does not load. Surely those readers who have encountered a situation where a computer or laptop does not boot or even start are unlikely to find it pleasant. In addition, it may happen that the computer or laptop turns on by itself and loads the BIOS and operating system, but you cannot enter the BIOS, that is, the BIOS Setup computer settings program does not start. In this article we will try to give advice on what to do when a computer or laptop turns on, but does not load the BIOS, and the system does not boot beyond the hardware check procedure and the operating system does not start or the BIOS Setup does not load, and how you can solve these problems .

When a computer or laptop does not boot, as a rule, instead of the familiar BIOS messages, the user sees only a black monitor screen in front of him. Sometimes a black screen on a computer or laptop is not a constant companion to this problem. For example, you turn on a computer or laptop, and you see that the system initially boots, some BIOS messages are displayed, but the boot process does not go beyond this stage, and the operating system does not start. What to do next in this case? First of all, you should not immediately panic and take your computer or laptop for repair, since you can try to solve this problem yourself.

The reasons that a computer or laptop does not start, or the BIOS does not start loading, may be various malfunctions, such as those related to Computer BIOS, and related to PC hardware. And the solution to the problem “the computer does not load the BIOS” in this case largely depends on its cause.

Types of situation:

  • 1. Black screen

The first and most unpleasant situation is that you press the power button on your computer or laptop, but the computer does not boot, the BIOS does not load, and you see a black screen in front of you. You wait further, but in vain, because nothing else happens. In this case, to determine the reason why the computer or laptop does not boot, you need to listen to the sounds that the BIOS produces when booting. One short beep usually means that the BIOS has successfully checked the hardware.

  • 1.1. Black screen and one beep

In this case, the cause of the problem is most often the monitor (of course, if we are talking about a desktop computer). Therefore, it is best in such a situation to check the connection between the monitor and the computer or the power cable of the monitor. If the computer does not start even after this, and the black screen remains, then the problem is not in the monitor.

  • 1.2. Black screen and several beeps

The presence of several signals at the moment when the computer turns on and the system boots usually means some kind of malfunction. As a rule, the meaning of these signals is different for different models BIOS. But most likely, if you don’t see anything on the screen, then the problem is again related to the video system, but this time, most likely, with the video card. However, in order to be completely confident in this matter, it is best to refer to the list of conditioned sound signals for the BIOS version that is installed on your computer or laptop.

  • 1.3. Black screen and no beeps

If the computer turns on, but the “black screen” is not accompanied by any sound signals, then we can assume that something is wrong with the power system. For example, the power supply has failed and for this reason does not supply the required voltage to the motherboard. Or is there simply no contact between motherboard and power cable. The cause of the problem may also be a malfunction of the BIOS itself, the motherboard, processor, memory, or even the hard drive. In addition, sometimes the reason that the computer does not boot may be insufficient cooling of the electronic components of the motherboard.

  • 2. There is no black screen, the computer displays boot messages, but the user cannot enter the BIOS

It is worth mentioning separately about the situation when the computer turns on, but there is no “black screen” and the system boots normally, but does not enter the BIOS program for setting up computer parameters - BIOS Setup.

  • 2.1. The BIOS entry key is pressed incorrectly

True, there is one nuance here. Some users may immediately panic “I can’t get into the BIOS,” although they simply do not know how to correctly enter the BIOS. To enter the BIOS, you simply need to press the appropriate key after the computer turns on. But many users press the wrong key or do it at the wrong time and that is why they cannot enter the BIOS. We wrote about what needs to be done to enter the BIOS setup program after the computer turns on in the corresponding article.

  • 2.2. The BIOS entry key is pressed correctly, but still cannot enter the BIOS

But it may also happen that BIOS Setup does not start, and you cannot enter it even though the correct key seems to be pressed. Most often, if you press the desired key and cannot enter the BIOS, the keyboard is the culprit. For example, if you are using a USB keyboard and the BIOS does not support USB devices, you will not be able to enter BIOS Setup. In addition, it is worth checking the functionality of the keyboard on another computer. If the BIOS does not open even after eliminating the keyboard factor, then the problem is in another component of the computer.

  • 3. Stop due to BIOS information messages

It is also not uncommon for a situation to occur when the computer starts, but does not load the operating system, but displays a text message about a certain error on the screen when loading the BIOS. Continuing the download depends on the nature of the error. For example, a BIOS checksum error message may indicate that the CMOS battery is low, and in this case the user can usually continue working after pressing a certain key.

Ways to solve problems

First of all, in order to solve the problem and eliminate the reason why the black screen appears and the computer does not load the BIOS and operating system, you should remember what you were doing before the problem occurred? Did you install new devices on your computer just before the black screen appeared? Have you made any changes to the BIOS settings?

If you did make changes to the hardware, it is recommended to return the system to its previous state by removing the recently installed hardware. If after this the computer works normally and loads into the BIOS, then this means that the problem was with the remote hardware.

If you made your own BIOS settings, you can return the BIOS to safe factory settings. To do this, as a rule, it is enough to install a special CMOS memory reset jumper on the motherboard or remove the CMOS battery. As a rule, this operation often helps when the computer does not load the BIOS.

If you know for sure that you did not perform any actions with the BIOS or equipment, but the computer or laptop still gives you a black screen and does not load the BIOS, then you will have to check all the equipment yourself.

Sometimes the cause of a malfunction may be dust in the “insides” of the computer. Therefore, the very first procedure for any user trying to revive a computer is cleaning internal space system unit. Only after this will it be possible to move on and check the functionality of all systems.

Temporary system failure is also possible due to overheating of the processor or motherboard. Therefore, it is worth checking the coolers of the system unit and processor. Then you should check the main components of the computer one by one - the processor, RAM, motherboard, video card, power supply. A hard drive failure will rarely cause the BIOS to not boot, but this option should not be discarded either.

Conclusion

The situation when the computer does not start and does not load the BIOS and OS, and the user sees only a black screen in front of them, of course, cannot be called pleasant. Since in this case the computer cannot be used for its intended purpose, as a business or entertainment tool, this is a great inconvenience for the user. However, the situation when the computer BIOS does not start is not always as fatal as it seems at first glance. Since it is extremely rare that the computer freezes and the inability to load the BIOS or the inability to enter BIOS Setup is a symptom of a hard drive failure, the user does not lose important information recorded on it. In addition, there are a number of methods that allow you to identify a faulty element and revive your computer. Of course, in some cases it may be impossible to identify a malfunction by the user, and then it is best to use the services of computer specialists from a service center.

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