The laptop publishes. The computer beeps when turned on

Any technique breaks down, but with a computer it happens more often. Many users have come across a situation in which the computer beeps and does not turn on. Questions immediately arise: what happened and how to fix it? Let's talk about this.

What can squeak inside?

The squeak of the computer comes from the speaker, and its main purpose is to squeak. It informs the user about any hardware or software error in the system (most often hardware). Removing the case cover reveals a small round black speaker, which is usually attached to the case itself. It is this speaker that emits a squeak, informing the user about possible software or hardware errors.

Why is the computer beeping and not turning on?

If everything is in order with the computer, then when you turn it on, you can hear only one faint squeak, which indicates that everything is in order with the system. However, there will be much more such squeaks in the event of a system malfunction. It's good when the screen displays symbols or words by which you can understand the problem and determine the nature of the malfunction. In the worst case, the monitor blinks and a characteristic squeak is always present. With its help, the system tries to explain to us at what level there is a failure.

Procedure

So, you are faced with a situation where the computer beeps and does not turn on. What to do in this case? The procedure is as follows:

Find out the BIOS version of your computer.
Calculate how many squeaks the speaker emits.
Find on the Internet (from your phone, for example) a table of faults of your BIOS and check it against it, which means a certain number of beeps.
Eliminate the malfunction.

How to find out the BIOS version?

To determine the malfunction, it is imperative to check the BIOS version. There are several ways to do this. The easiest one is to open the instruction manual for the motherboard, but if it is not there, then you can simply remove the case cover and find it on with the inscription BIOS. The version will also be indicated there.

If, when you turn on the computer for three to four seconds, you can see any inscriptions on the screen, then you can also notice the BIOS version there. You can also go to the settings by clicking the Delete button when the system boots.

The most popular versions are the following: Phoenix, Award, AMI, but there are others.

AWARD signals

So, if the computer beeps with short beeps and does not turn on, and we already know the BIOS version, then it is easy to find out the cause of the problem. BIOS AWARD has the following signals.

Single short signal	There are no problems in work
Two short	Loading errors occurred. Perhaps the loops are loose. These are minor bugs that can be fixed even programmatically. Don't worry
Three long beeps	There is any malfunction in the keyboard controller
Two signals of different length	RAM problem. At a minimum, you can remove the RAM strips, wipe their contacts with alcohol and put them in place. If the signals have not disappeared, then you should try to replace both or one of the strips and try to boot the system again. This will identify the faulty RAM module and replace it.
One long squeak, two short ones	Possible damage to the graphics adapter. You should unplug the system unit from the socket, pull out the video card, clean the contacts and plug it back in. If the signals remain, then the component will have to be carried for repair or returned under warranty to the seller
Long, three short	Video card failure
One long beep, nine short beeps	ROM read problem
Short repeating	Problem with PB
Repeating long	RAM problem
Repetitive signal with variable frequencies (high and low)	Processor problem
Continuous squeak	Damage to the power supply. You can try to clean it from dust, but if the squeak remains, then it will have to be carried for repair or replaced completely

The table lists the main signals that occur when using motherboards with BIOS AWARD version.

AMI signals

If it does not turn on with the AMI BIOS version, then the nature of the malfunction can be judged by the following signals.

1 short
2 long, 1 short	Defective PSU
2 short	Possible problems with the RAM bar
3 short	Another problem with RAM. Some of its components are not working properly. At a minimum, you can take out the RAM strips again, wipe their contacts with alcohol (degrease) and put them back. If there are several bars, then you need to try to turn on the computer with the installation of one bar first, and then on the other. This will identify the faulty module.
4 short	The timer in the system is not working properly.
5 short	Processor problem. There is nothing you can do here yourself. You need to carry your computer to repair. CPU may need to be replaced
6 short	The problem is in the controller
7 short beeps	Damage in the motherboard
8 short	Video memory problem
9 short	Malfunction in BIOS firmware
10 short	Unable to read CMOS memory. Her work may be wrong
11 short	The problem with the cache memory that is on the motherboard
Long, 2 short	Malfunction of the Mono-CGA video system
Long, 3 short	EGA-VGA video system malfunction
Long, 8 short	Monitor connector is loose or burnt
Continuous squeak	Broken power supply

In some cases, there are no sounds at all, and when the computer is turned on, the screen is black. What to do in this case? It is worth checking the CPU. There is a possibility that one pin on the microcircuit was bent. In this case, a CPU replacement is shown.

Phoenix Signals

Usually, if there are beeps, but the computer does not turn on, the reasons are typical for motherboards with only here the signals are a little atypical, so they need to be disassembled using signal codes. For example, signal 1-1-2 would mean the following: signal - pause - signal - pause - two beeps.

	CMOS memory problem
	Invalid BIOS checksum. Most likely, you will need to update the firmware of this microcircuit.
	Serious damage to the motherboard. Nothing can be done here on your own, you will have to carry it for repair or replace it
	DMA controller problem
	Malfunction of RAM
	Another RAM error. In particular, this code indicates that it was not possible to read the first 64 KB of RAM. It is necessary to remove the planks gradually and try to turn on the computer.
	An error occurred while preparing to start the motherboard. Most often a board replacement is required
	RAM problem again
	The system timer is not working properly. Most often, the problem is solved in the workshop, but the board may need to be replaced.
	Malfunction on the I / O ports. External devices may not work properly
	Error while defining DMA channels
	Video memory failure
	Unable to identify keyboard controller
	The impossibility of determining the BIOS of the video card
	The processor is not functioning properly. CPU may need to be replaced
	Unable to detect math processor
	Incorrect functioning of the RAM strips
	Keyboard controller is not working properly
	Incorrect operation of the first and second timers
	Unable to detect serial port
Long beeps don't stop	Maternal most likely burned out
Sound with a transition from high to low frequency	Perhaps on a video card. They need to be checked and replaced.
The computer beeps continuously and does not turn on	Talking about a malfunction of the processor cooler. It is advisable to look inside the system unit and see if the cooler rotates

Now it is clear that if the computer beeps and does not turn on when turned on, then the problem may be hidden anywhere from those listed above.

Other BIOS systems

Above are the signaling error codes for only three BIOS systems, although there are more. In any case, in the instruction manual, you can find these codes specifically for your motherboard. Check it out. However, there are ways to determine the problem without resorting to the BIOS.

Determination of malfunction in other ways

If the computer does not turn on, the light is blinking and there is a characteristic squeak, this does not mean that there is a serious breakdown with the computer. First of all, you need to try to resort to simple troubleshooting methods:

You need to check if external devices are correctly connected to the computer: printer, webcam, mouse, etc.
Turn off the power and tighten all the connectors inside the system unit. It may turn out that some power connector is not firmly attached to the component. As a result, the system thinks that the video card, for example, is missing and therefore the user sees a black screen when the computer is turned on. What to do in this case? Just push the connector harder.
Clean the motherboard from dust. In no case should you do this with a damp, let alone wet cloth.
Examine the motherboard and look for swollen capacitors. If there is one, then it must be replaced (unsolder and solder the same).
Check the board for burning.
You can also try to remove all components and reinstall them.

For some users who do not turn on the computer, the reasons generally remain unknown. Even specialists cannot determine the malfunction. In this case, you just have to change the board. There are no definite statistics that would make it possible to understand which module fails most often. Each case is individual, so in the event of a breakdown, you will most likely have to take the fee for repair.

Will it go away by itself?

In extremely rare cases, for users, the problem is solved by itself, and after a certain time of inactivity, the computer starts working normally. This can happen if there was insufficient voltage in the network, due to which the power supply unit could not provide all the components with sufficient power. This happens very rarely, but this option cannot be ruled out either. However, do not hope that the computer will stand up and after a while will turn on without problems.

Conclusion

So, we found out why the computer beeps and does not turn on. Unfortunately, if this happens, then it is extremely rare to solve the problem on your own. A motherboard and, in general, computer components are quite complex devices, therefore, in the event of a breakdown, it is advisable to seek professional help. This will save you a lot of time and sometimes money, as in the process of self-repair, users often exacerbate the situation due to their technical illiteracy.

Every time the computer boots up, the system unit emits a squeak. Not everyone knows that this is a signal showing the health of the system unit. And only a few know the decoding of these signals from the "sistemnik".

Let's talk about this. If you are reading this material, I recommend that you print it now. When decryption is needed, it will not be possible to get out on the Internet. :)

So what is the "sistemnik" squeaking about? These signals are the results of testing the computer hardware (there is a cooler, RAM, vidyuha, etc.). Every time you boot the computer, it tests the hardware, and reports the results with this squeak. The decoding of the squeaks of the system unit is below.

* One short squeak.
Decoding:
Everything is fine. The test passed successfully. You can continue to work. It so happens that some system blocks do not squeak at all at this moment.
* There is no squeak, no image on the computer screen.
Decoding:
Faults in the power supply or processor.
Correction:
First, see if the power cord is plugged into the outlet. If everything is in order, try connecting a known working device to the surge protector (such a cord with a box in which there are many sockets, there is also a switch button, usually red). A charger for a phone will do, of course, with a phone connected to it. You need to check all the sockets of the surge protector. If the socket is working, the phone will charge. Next, we check if the power supply starts up when the computer start button is pressed. In this case, the cooler (fan) of the power supply should at least jerk. If there is movement - look for a new processor, otherwise - a new power supply. You also need to check the power cable of the matrinsky board. It may happen that he walked away.
* One long continuous squeak.
Decoding:
Power supply defective.
Correction:
Purchase of a new power supply unit.
* Two short squeaks.
Decoding:
Minor faults in BIOS settings.
Correction:
Go to the BIOS and set the optimal parameters. The exit to the BIOS is carried out, usually, with the key. If you don't know what to change, then set the default values. To do this, press the button. To exit with saving -,. Some BIOS versions themselves suggest conflicting settings items with backlighting. Also, you can reset the BIOS settings by removing the motherboard battery for a few seconds.
* Three long squeaks.
Decoding:
There is no keyboard.
Correction:
Plug the keyboard into the PS / 2 socket. If this does not help, you will have to change the keyboard.
* Three short squeaks.
Decoding:
RAM error.
Correction:
To do this, you need to check if there are memory strips on the motherboard. Don't laugh, it happens. Then you need to take out all the memory strips, gently sweep away the accumulated dust, and alternately stick the memory strip, and start the system unit. If the "system engineer" beeps on any bar, it may mean that the bar is faulty.
* One long and one short squeak.
Decoding:
RAM is not working properly.
Correction:
Perhaps one or more memory sticks are in conflict with each other. It is necessary to stick one memory strip at a time and try to start the computer.
* One long and two short squeaks.
Decoding:
The video adapter is not working properly.
Correction:
Correct settings in BIOS.
* One long and three short squeaks.
Decoding:
The video adapter does not work.
Correction:
Check the performance of the video card. To do this, you need another, obviously working video card. You can also try to remove the card, remove dust from the slot, and stick the card in place. And do not forget to check if there are additional power plugs on the card. Power to such video cards must be supplied with a separate cord, to which no device is connected. I also suggest checking if the monitor is connected and working. Try blowing out the connector connecting the monitor to the computer.
* One long and eight short squeaks.
Decoding:
The video adapter is not working or the monitor is not connected.
Correction:
So the same as written above.
* One long and nine short squeaks.
Decoding:
BIOS data read error.
Correction:
Try to reset the BIOS settings by removing the battery. If this does not help, then flashing the BIOS. But that's another story that requires a separate article. I will try to write it as soon as possible.
* Four short squeaks.
Decoding:
The system timer is not working.
Correction:
You can try resetting the BIOS. But, unfortunately, it rarely helps. There is only one way out - to change or repair the motherboard.
* Five short squeaks.
Decoding:
The processor is not working properly.
Correction:
Try to clean the dust from the processor slot, make sure the heatsink is clean and the processor temperature is low.
* Six short squeaks.
Decoding:
Defective keyboard.
* Seven short squeaks.
Decoding:
Motherboard malfunctions.
Correction:
Send the motherboard for repair, or purchase a new one.
* Eight short squeaks.
Decoding:
Malfunctions in the video memory.
Correction:
Take the video adapter for repair, or purchase a new one.
* Nine short squeaks.
Decoding:
Incorrect BIOS checksum.
Correction:
It is usually suggested to reset the BIOS settings and allow you to continue working. In which case, you can reset the BIOS by removing the battery.
* Ten short squeaks.
Decoding:
Error writing data to the CMOS chip.
Correction:
This error can occur when flashing the BIOS. Therefore, we will describe this part in another article.
* Eleven short squeaks.
Decoding:
The cache memory is not working properly.
Correction:
Reset BIOS. If this does not help, we take the computer for repair, or install a new processor.
* Repetitive long squeaks.
Decoding:
Defective or incorrectly connected RAM.
Correction:
Reconnecting memory sticks. Computing faulty, by connecting in turn and starting the computer. Dust cleaning.
* Repetitive short squeaks.
Decoding:
The power supply unit is not working properly.
Correction:
Checking the operation of the power supply, checking the cords for breakage, checking the power filter, and, last of all, replacing the power supply.

That's all. If you have any questions - ask.

PS: To reset the BIOS, instead of removing the battery, you can use a special jumper - a jumper. Its location can be found in the documentation for the motherboard.

Supplement: BIOS signal coding if the computer died.
AWARD BIOS signals

Continuous signal. Power supply defective.

2 short. Minor bugs found.
3 long. Keyboard controller error.
1 long + 1 short. RAM problems.
1 long + 2 short. Video card problem.
1 long + 3 short. An error occurred while initializing the keyboard.
1 long + 9 short. An error occurred while reading data from the read-only memory chip.
1 long repeating. Memory modules installed incorrectly.
1 short repeating. Problems with the power supply.

AMI BIOS signals
There are no signals. The power supply unit is faulty or not connected to the motherboard.
1 short. No errors found.
2 short. RAM parity error.
3 short. An error occured in the first 64 KB of main memory.
4 short. The system timer is defective.
5 short. The central processor is defective.
6 short. Defective keyboard controller.
7 short. The motherboard is defective.
8 short. Defective video memory.
9 short. Checksum error of the contents of the BIOS chip.
10 short. Unable to write to CMOS memory.
11 short. Defective external cache memory (installed in slots on the motherboard).
1 long + 2 short. Defective video card.
1 long + 3 short. Defective video card.
1 long + 8 short. There is a problem with the video card or the monitor is not connected.

PHOENIX BIOS signals
1-1-3. Error writing / reading CMOS data.
1-1-4. Checksum error of the contents of the BIOS chip.
1-2-1. The motherboard is defective.
1-2-2. DMA controller initialization error.
1-2-3. An error occurred while trying to read / write to one of the DMA channels.
1-3-1. RAM regeneration error.
1-3-3. An error occurred while testing the first 64 KB of RAM.
1-3-4. An error occurred while testing the first 64 KB of RAM.
1-4-1. The motherboard is defective.
1-4-2. RAM test error.
1-4-3. System timer error.
1-4-4. I / O port access error.
3-1-1. Error initializing the second DMA channel.
3-1-2. Failed to initialize the first DMA channel.
3-1-4. The motherboard is defective.
3-2-4. Keyboard controller error.
3-3-4. Video memory testing error.
4-2-1. System timer error.
4-2-3. Line error A20. Defective keyboard controller.
4-2-4. An error occurred while working in protected mode. The central processor may be defective.
4-3-1. An error occurred while testing the RAM.
4-3-4. Real time clock error.
4-4-1. Serial port test error. The error can be caused by a device using this port.
4-4-2. An error occurred while testing the parallel port. The error can be caused by a device using this port.
4-4-3. An error occurred while testing the math coprocessor.

Probably many of you have noticed that the processor emits a characteristic squeak when turned on at the very beginning of the boot. He makes not only such a squeak, but several other sounds too. How it nibbles, in what order it nibbles differs depending on the type of Biosa.

These signals can tell a lot about the state of your computer, so each sound means something. In this article I will tell you what this or that sound made by your computer means.

Computer signals for different types of BIOS

Signals differ depending on the type BIOS which is in your motherboard. Find out which one you have BIOS you can go to, in fact, yourself BIOS (DEL button at the earliest stage of computer boot).

Award BIOS

Quote

200? ’200px’: ”+ (this.scrollHeight + 5) +’ px ’);”>

- Continuous signal - Power supply defective. Replacement required.

- 1 short beep - No errors detected. Typical behavior of a healthy computer is that the computer boots normally.

- 2 short beeps - Minor errors detected. On the screen

monitor, you are prompted to enter the CMOS Setup Utility to
correcting the situation. Check that the cables are securely fastened to the connectors.
hard drive and motherboard.

- 3 long beeps - Keyboard controller error. Reboot your computer. The motherboard may need to be replaced.

- 1 long + 1 short beeps - Problems with the operational

memory. Check if the memory modules are installed correctly. Or replace
to other memory modules.

1 long + 2 short beeps - The problem with the video card is the most

common malfunction. It is recommended to remove the board and re-
insert. Also check the connection to the monitor's video card.

1 long + 3 short beeps - Keyboard initialization error.

Check the connection between the keyboard and the connector on the motherboard.

1 long + 9 short beeps - Error while reading data from

permanent memory chips. Restart your computer or reflash
the contents of the microcircuit (if this mode is supported).

1 long repeating beep - Incorrect installation of memory modules. Try pulling and inserting them again.

1 short repetitive beep - Problems with the power supply. Try to remove the dust that has accumulated in it.

Quote

200? ’200px’: ”+ (this.scrollHeight + 5) +’ px ’);”> -1 short beep - No errors were found. The computer is now ready for use.

2 short beeps - RAM parity error. Reboot
a computer. Check the installation of the memory modules. Replacement may be required
memory modules.

3 short beeps - Main memory error (first 64 KB). Reboot your computer. Check the installation of memory modules in the slots. Memory modules may need to be replaced.

4 short beeps - The system timer is defective. Replacement of the motherboard may be required.

5 short beeps - Central processor defective. The processor may need to be replaced.

6 short beeps - Keyboard controller defective. Check
the quality of the connection between the latter and the connector on the motherboard.
Try replacing the keyboard. If this does not help, then perhaps
the motherboard needs to be replaced.

7 short beeps - Motherboard defective.

8 short beeps - Problems with the video card.

9 short signals - Checksum error of the contents of the microcircuit
BIOS. A message may appear on the monitor screen.
Either chip replacement or rewriting of its contents is required (if it's Flash).

10 short - Unable to write to CMOS memory. Replacement of CMOS chip or motherboard is required.

11 short beeps - External cache defective. Replacement cache modules required.

1 long + 2 short beeps - The video card is faulty. Check
video cards.

1 long + 3 short beeps - The video card is faulty. Check
connecting the monitor to the connector on the video card. Replacement may be required
video cards.

1 long + 8 short beeps - Problems with the video card, or not
connected monitor. Check again the installation of the video card in the slot
extensions.

Phoenix BIOS

Phonenix BIOS manufacturers have developed their own interleaved signal system.

Quote

200? ’200px’: ”+ (this.scrollHeight + 5) +’ px ’);”> -1-1-3 - Error writing / reading CMOS data. Chip replacement required
CMOS memory or motherboard. Also may have run out
battery that powers the CMOS memory chip.
1-1-4 - Checksum error of the contents of the BIOS chip. BIOS chip replacement or flashing required
(when using Flash memory).
1-2-1 - The motherboard is defective. Turn off the computer for a while. If it does not help, then replace the motherboard.

1-2-2 - Error initializing the DMA controller. Replacement of the motherboard may be required.

1-2-3 - An error occurred while trying to read / write to one of the DMA channels. Replacement of the motherboard may be required.

1-3-1 - Problem with RAM. Replace memory modules.

- 1-3-3 - An error occurred while testing the first 64 KB of RAM. Replace memory modules.

- 1-3-4 - An error occurred while testing the first 64 KB of RAM. Replace memory modules.

- 1-4-1 - The motherboard is defective. It may need to be replaced.

- 1-4-2 - Problem with RAM. Check the installation of memory modules in the slots.

- 1-4-3 - System timer error. Replacement of the motherboard may be required.

- 1-4-4 - Error accessing the I / O port. This error can

be called by a peripheral device using this port for
their work.
- 3-1-1 - Error initializing the second DMA channel. Replacement of the motherboard may be required.

- 3-1-2 - Error initializing the first DMA channel. Replacement of the motherboard may be required.

- 3-1-4 - Defective motherboard. Turn off for a while

a computer. If this does not help, then you will have to replace the motherboard.
- 3-2-4 - Keyboard controller error. Replacement of the motherboard may be required.

- 3-3-4 - Error while testing video memory. Possibly faulty itself

video card. Check the installation of the video card in the expansion slot.
- 4-2-1 - System timer error. Replacement of the motherboard may be required.

- 4-2-3 - Error while operating line A20. Defective keyboard controller.

Try replacing your motherboard or keyboard controller.
- 4-2-4 - Error while working in protected mode. The central processor may be defective.

- 4-3-1 - Error while testing RAM. Check

installation of modules in slots. Memory modules may need to be replaced.
- 4-3-4 - Real time clock error. Replacement of the motherboard may be required.

- 4-4-1 - Serial port test error. May be

caused by a device using the serial port for its
work.
- 4-4-2 - Parallel port test error. May be caused

device using the parallel port for its work.
- 4-4-3 - Error while testing the math coprocessor. Replacement of the motherboard may be required.

Here is such a transcript.

Many users of modern laptops are faced with a problem when, when turned on, the equipment starts to beep. Let's see why this happens and how to fix this defect in the operation of a computer device.

So, computer technology today does not keep pace with such a concept as durability. Without all sorts of defects, the laptop can work for a maximum of six months, then miracles begin in bends. Laptops are prone to breakdowns for the simple reason that they consist of almost a huge number of subsystems that have communication with each other, the elements of which are fragile and short-lived.

If the computer does not turn on, you need to naturally establish the cause of this phenomenon. Of course, you shouldn't panic right away. Modern developers, realizing that they are giving out not entirely practical devices, have foreseen the presence of a mechanism in advance, which would indicate that the laptop is not completely out of order and needs to be repaired. A special audible signal tells the user that everything can be returned to normal if you take the correct troubleshooting measures or contact a master for help.

When working with a laptop, you need to get used to the fact that from time to time it can fail. Although this phenomenon is not desirable, it is almost impossible to insure against this. The more you use your computer, the more likely it is to wear out.

So, back to the pressing problem - the computer squeak when you turn it on. How to be? What to do? Analyze the state of operation of all components of the laptop. Let's get started!

Input system

The reason for the squeak of a laptop is often a lag in the keys. If you spill liquid on the keyboard or clog it with crumbs, it may short-circuit the contacts. It's great if spilled tea or compote does not get inside the case and damage the board. So eating and drinking at the computer is harmful.

Temperature regime

If the laptop does not turn on and emits a squeak, this may be a signal that the cooling system is not working. It can become dirty with dust, small particles of a quarrel, and also be damaged due to a mechanical factor, the laptop can fall, for example, from a table or fall out of the hands when moving. The result of careless handling of equipment leads to overheating of the central processor.

Also, a squeak may indicate a failure of the graphics card.

Operational memory device

The squeak of the computer when turned on can also indicate damage to the device's RAM. Due to the careless operation of the laptop, the contacts between the motherboard and the RAM itself can be disrupted.

If the motherboard fails, then this is a reason to consider also a failure of settings in the BIOS.

What does the signal from the laptop say?

From the above, it follows that the squeak of a laptop can be heard for several reasons. The user often hears the sound through the high-frequency speaker built into the laptop. It is located directly on the motherboard. Programmers call him a speaker. The speaker resembles a small barrel. Its primary task is to let the user know about a laptop malfunction.

Many masters determine a breakdown by the duration of the signal, by its tone, it turns out that the barrel can make various sounds, focusing on a specific problem, which makes the work of a specialist much easier.

Display

If the computer beeps, then the screen also does not react in any way to the process of turning on the device. To make sure that the screen is broken, you first need to check the power supply, suddenly the light turned off by accident, and the user is working from the mains. To verify that the display is truly inactive, open and close the laptop lid several times.

If the matrix is damaged, the image on the screen is displayed at a certain viewing angle. You can check the black screen on the laptop by connecting it to an external monitor. If the external monitor works, then the cable or the matrix itself is really damaged in the laptop.

If, when connected to an external monitor, the situation remains unchanged, then the reason must be sought in the operability of the video card itself.

If the screen remains dark, and you hear the sounds of the operating system loading, then there is no doubt about it - a defect in the video card is one hundred percent. The computer device may not turn on even if the start button fails. It can either sink or react to contamination.

Rare breakdowns

When you turn on the laptop, you can often find that the lamp or inverter is out of order. You can determine this by shining a lamp on the display when turned on. The display is often dark and the operating system boots. If, when illuminated by a lamp, it is possible to see the screen image, then there is no doubt about the above.

If the inverter fails, it is changed or repaired, but if the lamp, then it is only changed to a new one. If the laptop turned on, and the display acquired a black frame and a blurry image, the hardware part of the device flew. This is often the case with a faulty video chip. It fails due to frequent overheating of the computer, there are times when the video chip failed due to poor contact between the power supply and memory modules, the south bridge may still suffer, and other reasons are also not excluded.

To establish the true cause, the wizards carry out special diagnostics of the laptop. Often, the display matrix remains fully functional. It can only fail if the laptop is dropped violently or if liquid is spilled on the screen.

A little about the types of sounds emitted by laptops

As mentioned above, laptops emit various sound signals, or rather, this is done by a barrel - a speaker. Each signal individually means a breakdown of one or another component of the device. Professionals are engaged in decoding of the emitted signals. Only they can distinguish sounds. Moreover, each BIOS manufacturer sets its own individual ordering of sound signals. So it's not enough to understand sounds, you also need to become attached to the creator.

Since it is often difficult to find an intelligent master, let's give a quick hint, as evidenced by the sounds of different BIOS manufacturers.

So, let's start with DELL brand devices. The output of the video card is accompanied by the sound "1-2". If the BIOS memory device suffers, the signal "1-2-2-3" will be heard. If the DRAM update fails, the skiper will sound “1-3-1-1”. A faulty keyboard will sound "1-3-1-3", but if there is a problem with the memory, the user hears "1-3-3-1". If the cause of the malfunction is RAM, then the tonality may sound either "1-3-4-1", or "1-4-1-1", or "1-3-4-3".

Devices of the AMI BIOS brand are characterized by a more advanced signaling system. So, one short sound speaks about the full operation of the laptop. Small malfunctions of RAM are accompanied by three long beeps. Often, with such a signal, memory reinstallation is required. One long - one short beep indicates a power failure. Eight identical sounds in a row indicate that the memory of the video card itself is suffering. If the user hears one long and eight short beeps, they forgot to connect the monitor or the video card is out of order. Ten short-order signals are indicative of errors in CMOS recordings. The absence of a video card is accompanied by one long and four short beeps.

If the computer is completely silent, then this means that the processor itself is out of order.

Suppose you have the computer beeps when turned on and the image does not appear on the screen. Is it worth calling the wizard right away or can you solve the problem yourself? Ideally, of course, it is better for the repairs to be made by a person who understands this. However, if there is no time to wait for the master or you just want save on repairs, you can use the tips in this article. Many faults can be caused by poor contact and such a problem you can fix it yourself.

Why is the computer beeping?

When a malfunction occurs, the system notifies with a combination of beeps that indicate which malfunction has occurred. In fact, the beep sounds even if everything is in order - 1 short beep.

What are the BIOS signals?

The most common signals you hear are:

Diagnostics and troubleshooting

Before starting diagnostics, it is better to disconnect all unnecessary (keyboard, mouse, printer, flash drives, etc.).

After you have managed to identify your problem by a beep, you can try to fix it. Unplug your computer and follow the steps below in order, depending on the problem you identified (RAM, video card or power supply). Check the computer to turn on after completing each step.

RAM error

Remove all but one memory stick (if you have more than one).
Move the memory to a different slot.
Pull out the memory bar, clean the contacts and insert back into the slot.
Replace memory.

More details about how and how to clean RAM contacts are shown in the article -.

Graphics card error

Pull out the video card and insert it back.
Pull out the video card, clean the contacts with an eraser and insert back into the slot.
Replace the video card.

The contacts of the video card are cleaned in the same way as the contacts of the RAM.

Power supply problems

Open the power supply and look for swollen capacitors. If you find it, have someone re-solder the bad capacitors if you don't know how to handle the soldering iron yourself.
Replace the power supply.

If your computer emits a combination of sound signals that differ from those described above, then use the tables of leading BIOS manufacturers, such as Award BIOS and AMI BIOS.

Award BIOS signals

	Error description
1 signal and blank screen	No errors found
2 short	Minor bugs found. The monitor screen prompts you to enter the CMOS Setup Utility and correct the situation. Check that the cables are securely fastened to the connectors of the hard drive and the motherboard.
3 long	Keyboard controller error
1 long, 1 short	Random access memory (RAM) error
1 long, 2 short	Graphics card error
1 long, 3 short	No graphics card or video memory error
1 long, 9 short.	Error reading from ROM
Repetitive short	Power supply problems; RAM problems
Repeating long	RAM problems
Cyclically alternating two sound tones.	CPU problems
Continuous.	Power supply problems

AMI BIOS signals

Beep sequence	Error description
1 short	No errors found
2 short	RAM parity error or you forgot to turn off your scanner or printer
3 short	Error in the first 64 KB of RAM
4 short	System timer malfunction. Replace the motherboard.
5 short	Processor problems
6 short	Keyboard controller initialization error
7 short	Motherboard problems
8 short	Video card memory error
9 short	BIOS checksum is incorrect
10 short	Error writing to CMOS
11 short	Error in the cache located on the motherboard
1 long, 1 short	Power supply problems
1 long, 2 short	Video card error (Mono-CGA). Defective RAM connectors. Replace the motherboard.
1 long, 3 short	Video Card Error (EGA-VGA), Server Motherboards - Wrong Memory Type Installed
1 long, 4 short	Lack of a video card
1 long, 8 short	Problems with the video card or the monitor is not connected
3 long	RAM - read / write test completed with an error. Reinstall the memory or replace with a good one.
5 short, 1 long	The RAM is not installed or is not installed as recommended by the manufacturer.
Continuous beep	Bad memory, power supply, or overheating of the computer