After flashing the BIOS, the computer does not turn on. BIOS does not load: instructions for solving the problem. How to make a bootable floppy disk for updating BIOS

The basic input/output system is the beginning of a computer's electronic life. In the event of a hardware or software malfunction of the BIOS microchip, successful startup of the computing device simply becomes impossible. Despite the extreme degree of reliability of the specified element computer system, software failures in the underlying microsystem (due to many factors!) still occur. In most cases, the problem “BIOS does not start: what to do?” is resolved by simply replacing the CMOS battery, otherwise it is necessary to apply a comprehensive diagnostic plan, and only after identifying the cause of the problem, carry out a repair (correct!) algorithm of actions, -. details in the article!

Not a short introduction: small BIOS and big consequences...

Indeed, everything depends on a small microcircuit, which contains a set of microprograms in its memory, and in totality is the basic microsystem of a computer! A very rare electronic ailment that occurs in our time is damage to the main BIOS record of the system (not to be confused with temporary data stored in CMOS memory!) - this is a “dead” motherboard. That is, the motherboard becomes completely useless, since it is deprived of a startup control element.

A partial malfunction of the microchip BIOS can be accompanied by an incredible variety of surprises, both hardware and software. In general, the beginning of all computing principles is a small microcircuit with a certain set of programs. The degree of efficiency of the computer you are using directly influences the overall service life of the computing device as a whole depends on how correctly you configure the BIOS. If for you, dear reader, everything written above has become news, then it makes sense to think: “Am I following the manufacturer’s critical instructions regarding operating rules?”

Why the BIOS suddenly stopped starting: a little about all the reasons

Let's move on to specifics, because the situation “does not start” can look different:

1. When you press the “on” button, nothing happens - a black screen and silence.
2. The computer turns on, the screen flickers with a black void (not active) - the noise of the fans is heard and the system speaker (BIOS speaker) beeps.
3. The computing device starts, some message is displayed on the screen - the buttons do not respond, except that... the restart works.
4. The system boots too quickly (and safely!), but you can’t get into the BIOS.

There is another interpretation of the problem voiced, when a novice user does not correctly understand what exactly is happening and at the same time wonders how to enter the BIOS in general? Let's start with the last one...

How to enter basic computer settings

Depending on the BIOS version(s), as well as the design features of the computer, access to basic settings may differ radically from the methods that are considered standard.

For example, in most PC modifications, entering the BIOS is done by pressing the “F2” or “Delete” function button. Moreover, the activation of one of these buttons is carried out immediately at the moment of starting the computer system at its initial stage. By the way, there is a special technique for calling the main BIOS menu- repeated pressing of the corresponding button with an interval of two presses per second of time.

There are other “tactile schemes” for entering the BIOS - some manufacturers equip the devices they produce with special mechanisms, push-button or lever type, when activated, the user enters service menu basic microsystem. However, there are also more exotic buttons - touch ones. However, the essence of the listed keys and service gadgets is the same - calling the BIOS Setup menu.

As for the “speed resistance” to entering the basic computer settings menu, there are several possible solutions:

• Enter the BIOS menu through Windows OS - use this link to read about how this is done.

• Try calling the BIOS using other service keys, for example, “F8”.

• Finally, you can get to the basic settings using the System Restore rescue disk or Windows distribution.

Black screen and silence: causes and solutions

This “electronic incident” has a rather long list of “causes and consequences”, however, it is possible to identify the main symptoms of the malfunction, namely, to quickly identify the real culprit of the “silent triumph”.

• There is a 99.9% chance that the power supply has failed. Naturally, replacing the component with a known-good power supply unit will correct the situation in the direction of “Problem resolved!”

• The power button is faulty - replace the switching element or check the wire for mechanical damage(obvious breakage, deformation of the wire, oxidation of contacts, etc.), of course, with its subsequent restoration (soldering, cleaning).

• Dust contamination of the inside of the computer case (especially important for portable computer equipment- laptop) - it is necessary to clean all components of the system board, as well as the attached modules and wiring equipment, from dust. Do not forget to clean the protective mesh of the air intakes and other structural elements of the body.

The computer turns on, but the monitor screen is “full of dark secrets”

As a rule, problems with starting a computer system are always accompanied by a specific sound signal, the tone and sound sequence of which has its own decoding code.

To solve the problem described, you can also try changing the computer’s power supply, but in a greater degree of probability, this “PC behavior” indicates that the BIOS has detected a faulty component in the system: one of the memory sticks (RAM) has failed hard drive or the processor temperature has reached a critical value. In the latter case, it is necessary to replace the thermal paste and check the cooling system cooler for serviceability.

Otherwise, user actions should be as follows:

• Disable everything peripherals(printer, fax, web camera, external storage devices, etc.).

• Remove all modules RAM.

• Disconnect hard drives.

• Switch to another graphic mode- change the video circuit from integrated to discrete, or switch to the built-in video chip if you used an external video card.

If an empty continent starts up, add one component at a time from the previously disabled components and carefully monitor the reaction of the microsystem as a whole. In any case, if the BIOS starts, it means you have already achieved a positive result!

By the way, do not forget that a black screen may be the result of a failed monitor. In laptops, the integrity of the connecting cable is often compromised, which is constantly subjected to dynamic load when opening/closing the display cover. In the latter case, it is better to contact service center for laptop repair. In both the first and second cases, to check the truth of the assumption, you can always try connecting an external monitor to the VGA connector.

In conclusion

Here, in brief, is the entire list of instructions for the problem “BIOS does not start: what to do.” We hope everything worked out for you and access to basic settings is restored. Of course, you should not lose sight of another not described way to resolve the problem - switch the CMOS jumper to the RESET position (then return the contact element to its original position).

And you know, this article has a big continuation, because the BIOS may not start due to swollen capacitors, as well as “dead” transistors... Don’t miss it!

BIOS is basic system input and output, which 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 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 the main reason for the inability to start a PC normally is 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 parsing 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 in this case Try starting your 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 hard drives, coolers, launching 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 devices to it and it began to turn on normally, then there can be two explanations for this behavior:

• Perhaps due to vibration and/or other physical impact on the PC, the 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 BIOS settings solve 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:

In case you have an operating room Windows system 7 and older, and also if you do not find the item "Firmware and UEFI Settings" V « Additional options» , you can use "Command line". Open it with cmd commands in 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 re-enter the BIOS 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 only in cases where the computer boots without problems, but you cannot enter the BIOS.

Many users do not know the answers to the question. They don't know how to update the BIOS. Don't think about updating this program- this is supernaturally difficult. Believe me, everyone can figure it out.

The abbreviation of this system when translated into Russian sounds like a basic input-output system.

Why do you need a BIOS?

1. When the computer starts, the BIOS checks the standard hardware and its viability. If any of this equipment burns out, a special sound signal will sound.
2. The program starts boot program, which directly loads Operating System.
3. Provides interaction between the OS and various peripheral equipment.
4. Gives the user the ability to configure PC hardware components.

Do I need to update the BIOS and why?

Updating this program is a deeper process than conventional computer programs. This implies a short algorithm of changes. Basically, this is correcting the malfunction of some rare components of the system or adding support for the latest processor models.

If the computer works without problems, it is better not to deal with this program. And it's not worth updating. Differences between the past and new version you won’t see, and on the contrary, the update can generate unexpected problems for your PC. Most often they occur when the previous version was tested more thoughtfully than the new one.

The update should only be launched for your model. motherboard. If you try to update the BIOS designed for a different model, it may bring you a number of unpleasant difficulties and problems.

But there are times when updates are necessary, and sometimes urgently:

1. System board requires the installation of a new processor, which the updated version can provide. In this case, it is necessary to update the program.
2. You need to connect a hard drive of a size that is not supported old version programs.
3. Required to activate additional features chipset (a set of microcircuits that are designed to work together in order to provide a set of various functions) that are not used in the original version.
4. It is necessary to replace the outdated OS on the computer.
5. In case you plan to overclock your computer.
6. The system functions slowly or incorrectly due to errors in the BIOS code.
7. The version you have installed is broken, which is why the system does not function partially or completely.

What does a BIOS update do?

Updating the motherboard BIOS, as you already understand, is done mainly so that new processors and new memory, which come out very often, were supported motherboard installed on your computer. Because of this, updating the program is sometimes simply necessary.

Is it worth updating the program unnecessarily? Is it possible to update it constantly without thinking about the consequences? Programming professionals advise against doing this.

How to view the current current version of your system program?

• Most quick way to know current version- is to take advantage command line on your computer.

• Enter: Wmic bios get smbiosbiosversion. A window will open in which you will see the current version.

After you have found out the information you need, you should go to the website of the manufacturer of the motherboard that is on your computer.
There are five most popular manufacturers:

How to update BIOS on a laptop?

Special programs for updating BIOS

Top 3 programs:

• Asus – Asus Update,
• MSI - Live Update,
• @BIOS.

General instructions for the programs:

Let's look at the option of how to update the BIOS from a flash drive:

How to make a bootable floppy disk for updating the BIOS?

The update method from a floppy disk is considered one of the most reliable in terms of security.

After all these manipulations, you need to restart the computer and boot from the floppy disk. Make sure that the disk drive is set as the first boot device in the BIOS. During the reboot, open the BIOS setup menu by pressing the special open keys. We select - Advanced BIOS Features, Boot Sequence, which are sometimes called Advanced, Advanced BIOS Features.

How to update BIOS without battery?

For update purposes, you often need to charge your computer to at least 10%. If this condition is not met, then the message “Power Check Error” will pop up in front of you, preventing you from updating the program.
In order to update it, you need to find out one key. What do you need to do for this?

Windows won't boot after BIOS update

It happens that after an update, Windows stops loading. In this case, you need to start the computer's BIOS. Find the parameters of SATA devices and try to change the operating mode. If the settings are set to IDE, you need to activate AHCI (or vice versa). After this, save the new settings and restart the computer.


And remember that entering this system do not need it unnecessarily, as it may harm your computer! If you still don’t understand or can’t figure out some subtleties, contact a specialist!

Have a great day!

Oh, guess the riddle: standing there, the hive is buzzing. But there is no smoke coming out of the chimney, because this is not a native factory, but a computer on which the BIOS is damaged. And he hums because that’s all he can do now. Without the BIOS, it's just a bunch of lifeless hardware. Is this worth worrying about? Of course not. After all, now you have a great bedside table!

System unit as a bedside table? Well, no! We know how to make it work. Today we’ll talk about how to restore the BIOS if it crashes.

What causes the BIOS firmware to crash?

There are not too many reasons for BIOS damage; in some cases they are obvious, in others they are not. Here is a list of the most common:

• During this time, the computer's power supply was cut off.
• The flasher program does not interact correctly with the firmware or flash memory chip.
• A BIOS version has been flashed that is not suitable for this motherboard. Yes, .
• If the update is carried out from a running operating system, there may be a system failure or software interference, for example, blocking by an antivirus.
• Incorrect user actions, for example, restarting the computer before the update installation is complete.
• Failure of the flash memory chip.
• Hidden BIOS firmware errors. Sometimes this explains spontaneous “rallies” that occur for no apparent reason.
• Electrical problems with the motherboard.

How BIOS damage manifests itself

• When you press the PC power button, only the cooler is turned on, which immediately begins to rotate with maximum speed. Sometimes they light up LED indicators on the case and keyboard.
• One or several seconds after switching on, a cyclic reboot begins. Outwardly, this is manifested by a cycle of spinning up and stopping the cooler, which is repeated as long as power is supplied.
• When turned on, the power indicator lights up, the cooler does not spin.
• The computer shows no signs of life. This happens when the boot block, the BIOS bootloader, is damaged. This is the most difficult case.

There is no image on the screen. Even the manufacturer's screensaver does not appear.

There are also other forms of damage to the BIOS, more precisely, to its area that stores the configuration of the ME controller (an integral part of the chipset) on boards working with Intel processors– the so-called ME region. If there is a problem in this area, the computer or laptop may:

• It won't load correctly or won't turn on at all.
• Shut down or restart at regular intervals.
• It is incorrect to regulate the rotation speed of the cooler, for example, turning it at high speeds regardless of the load.

Eliminating such failures involves reading a BIOS dump, replacing the ME region with a clean one, and re-flashing it using a programmer. Since this is usually done by repairmen, and not by computer owners, we will not dwell on this. It’s better to do what can be done at home without special equipment and the risk of finally sending your “iron pet” to the kingdom of eternity.

Restoring the BIOS without a programmer is only possible if you save the bootloader. It is sometimes possible to determine whether it has been preserved or not by indirect signs: blinking of the screen backlight, sound signals from the system speaker, the reaction of the motherboard to turning on without RAM (with sound or blinking indicators), etc. If the BIOS bootloader is intact, the first moments of operation computers run fine, the failure appears a little later.

How to restore functionality to a motherboard with a crashed BIOS

Asus

After downloading the firmware you need to rename it. For example, the file “Sabertooth X79” (model name) is renamed to “SABERX79.ROM”, the file “Sabertooth Z77” is renamed to “Z77ST.CAP”. Information on what the firmware file for your model should be named is most likely on the Asus website, but if you don’t find it, check on the forums or in support.

Next, save the renamed BIOS on a flash drive formatted in FAT32 and connect it to USB port marked " Flashback" or " ROG Connect" It is advisable to turn off the computer before this, this will increase the chance of successful recovery.

After connecting the flash drive, turn on the PC and press the “ BIOS" Hold it down for about 3 seconds until the indicator light on the board starts flashing. Blinking indicates that the file has been successfully read and is being flashed into memory. When the firmware process is completed, the indicator will turn off.

If your board is from budget segment or not too new, that is, does not support USB Flashback, most likely you can restore it in another way. If your computer has a floppy drive or optical drive, write the renamed BIOS file to the root directory of a blank floppy disk or CD, place it in the drive, turn off and then turn on the PC. The firmware will be completed when the drive indicator goes off. If there is no drive, use a flash drive.

Gigabyte

Problems with starting a board with Dual_BIOS are possible in the following cases:

• The main chip is missing or faulty.
• The microcode in the main chip is completely erased.
• The contents of both microcircuits are damaged.

Some Gigabyte motherboards can boot from backup flash memory and use it as the main one. Another group of boards from this manufacturer uses a dedicated area on the hard drive as BIOS backup media. This is a less reliable option, but still better than nothing.

Restoring the Gigabyte BIOS from a backup is usually performed automatically, but if this does not happen, try turning off the computer from the outlet, wait a little and turn it on again.

MSI and others

On maternal MSI boards and some other brands that are more than 8-10 years old, flashing the BIOS is done from a floppy disk. The instructions for AWARD and AMI BIOS are slightly different.

To restore the AMI BIOS, do the following:

• Rename the BIOS file downloaded from the motherboard manufacturer's website to AMIBOOT.ROM.
• Transfer it to the root of a blank floppy disk. Insert the floppy disk into the drive of the switched off PC.
• Press left Ctrl + Home on your keyboard and turn on your computer.

To restore AWARD BIOS:

• Place the firmware and BIOS files on a floppy disk (usually downloaded in one archive).
• Create on floppy disk text document, which indicates the name of the BIOS file with bin extension. Rename the document to autoexec.bat.
• Further steps are similar to those above.

By the way, some motherboard manufacturers post BIOSes on their websites only in exe format - in “one bottle” with a firmware program for updating from Windows. Sometimes such a file can be unpacked as an archive, but users often do not understand which of its contents is firmware. For such tasks universal solution No. In order not to aggravate the problem, it is better to consult specialized forums or the manufacturer’s technical support.

On some boards, before restoring the BIOS, you also need to remove the real-time clock (RTC) battery from the socket or reset (remove) the CMOS clear jumper. It is important to clarify these points before starting the procedure.

Features of BIOS recovery on laptops

The method for restoring a crashed BIOS on laptops is approximately the same as on desktops. The firmware file and flashing program downloaded from the manufacturer’s website (the latter is not always needed) are placed on a clean flash drive formatted in FAT32/16, connected to a de-energized device (simply turning off the laptop is sometimes not enough, you need to disconnect the power supply and remove the battery), insert a charged place the battery in place, turn on the device and press the key combination. Different laptops use different keyboard shortcuts for this, for example:

• Ctrl (left only or both) + Home
• Windows + B (this and other letters are given in the Latin layout)
• Windows + F
• Windows+M
• Windows + Esc
• Fn+B
• Fn+F
• Fn+M
• Fn+Esc.

The main job is to unpack and rename the BIOS files. Single rule here, again, no. In most cases, you have to get the firmware from exe files, but! Many manufacturers include BIOSes for different revisions of one platform or a whole series of platforms, and you can choose the only one from them required file it can be very difficult. To avoid mistakes, read the instructions for flashing the firmware of your particular model and platform revision on specialized forums. And don't be shy to ask questions.