When you start the computer, 2 long squeaks. Why is the system unit beeping? Causes and consequences.

When connected to the network, the computer beeps. This is how the hardware informs the user about the readiness for work. But sometimes the computer emits a series of beeps at various intervals, and flatly refuses to boot. This indicates existing problems, and the problem may lie in software, or mechanical damage.
You can find out the cause of the malfunction by the frequency and frequency of sound signals

However, it is difficult for an ordinary user to understand this alphabet, so we decided to make an article where the decoding of Bios signals will be given.

What are the beeps talking about?

If the computer beeps when you turn it on, then it's not so bad. At least the motherboard is fine. Much worse if. This indicates a system problem that can only be rectified in a workshop. If the "hardware" is buzzing you need to try to find out the reason. Some breakdowns can be repaired on their own. It should be noted that the malfunction can be of a software or technical nature. In the latter case, when you hear a squeak, you need to check if the computer is connected correctly. Perhaps moved away power cord or no power supply. In the latter case, the computer does not turn on.

If the connection is normal, system unit buzzing but no image appears, you are dealing with a software glitch. But you can try cleaning your computer from dust. They do it like this:

We remove the front cover of the system unit (the computer is disconnected from the mains), take out the RAM and the video card.

fig. 1. The slots of the removed devices should be cleaned with a soft brush.
fig. 2. We remove dirt from memory cards and video cards

We insert the parts into place, and try to turn on the computer.

If the download was successful, then the reason was dust, which clogged the contacts of the motherboard. If, after cleaning, the computer continues to beep, then the problem is more serious than it seemed at first glance. Perhaps the power supply is faulty or the software has "flown". In any case, it is recommended to send the computer to a service center for diagnostics.

Important! The computer beeps for any system malfunctions. Knowing what a series of beeps means can help you identify and possibly fix the problem.

Sound signal table

Signals when starting a computer are a kind of Morse code, with the help of which the hardware communicates with its owner. There is a Bios signal table with which you can decipher the beeps. It is enough just to find out which version of BIOS is installed on your PC, check the table below, and determine the reason for the beeps.

Bios Award

One short beep indicates that the system has booted successfully.
Two short ones are minor software bugs. The computer may advise you to use the CMOS program, and will display a corresponding message on the monitor.
Three long Signal Bios talking about keyboard problems. You need to check if the connection is correct.
1kor / 1ln. The error was caused by RAM.
1dn / 2kor. Video card. It is recommended to remove it from the slot and blow through the contacts.
1dn / 3cr. Video memory.
1dn / 9kor. ROM cannot be read.
Alternating short beep. Power supply or RAM not working.
Intermittent long squeak. RAM error.
One continuous signal in a different range. Defective power module or CPU.

Bios Pheonix

1 ~ 1 ~ 4: problem with calculating BIOS checksums.
1 ~ 1 ~ 3: CMOS memory does not open.
1 ~ 2 ~ 1: Motherboard beeps.
1 ~ 3 ~ 1: RAM is not regenerated.
1 ~ 4 ~ 2 or 1 ~ 3 ~ 3: RAM error signals.
1 ~ 4 ~ 4: One of the ports on the unit is not working.
1 ~ 4 ~ 3: System timer is not initialized.
2 ~ 1 ~ 1: if the computer first emits two beeps, pauses and repeats the signal several times, this indicates a malfunction of the RAM. Usually, these are errors of reading information.
3 ~ 1 ~ 1 (2): Do not connect DMA channels.
3 ~ 2 ~ 4: The keyboard is not connected correctly.
3 ~ 3 ~ 4: the computer cannot work with graphics... Defective graphics card or memory.
3 ~ 4 ~ 1: The monitor is not recognized. Incorrect connection or technical malfunction.
4 ~ 2 ~ 2: Signal to complete system test.
4 ~ 2 ~ 4: CPU crit. Go to safe mode impossible.
4 ~ 4 ~ 1: Onboard ports are not sequenced.
Long continuous beep: Critical damage to the motherboard.
Continuous squeak of various tones: the cooling system is out of order.

Note: the ~ symbol marks the intervals between beeps.

Bios AMI

One long beep informs about successful loading of the operating system.
Two short signals indicate incorrect installation of RAM modules.
Three short signals: failure to load RAM. To fix, you can check if the RAM is installed correctly.
Four short beeps indicate problems system timer.
Five repetitive beeps indicate a CPU failure.
Six intermittent beeps: incorrect connection or keyboard malfunction.
Seven beeps: The motherboard is faulty. The reason may be mechanical damage or contamination of the system unit.
1dn / 4cor: no video card. Eight short beeps indicate problems with the memory of the video card.
Nine short beeps indicate an error in calculating BIOS checksums.
1LN / 8KOR: Check if the monitor is connected properly.
The computer does not make sounds, no messages are displayed on the monitor. Critical damage to the central processor.

If the computer freezes when turned on, then this is a software failure. In this case, one short beep sounds when the computer is turned on, indicating that the system is booting normally. But operating system hangs at the boot stage. It is possible that the computer does not see the bootloader. Faced with this situation, you need to check the priority BIOS boot... Perhaps, by mistake, a boot from a digital medium was set. To fix the problem, just reset the boot parameters.

Important! If you do not have the skills and knowledge to troubleshoot system errors, it is best to contact a service center for help.

WATCH THE VIDEO

Now you know all the signals when you start your computer and what to do if the computer beeps when you turn it on. Asking questions!

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 test results hardware computer (cooler there, 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 to connect 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 new processor, otherwise - new block nutrition. 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 BIOS and install 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 sticks on 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 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 ones. Minor bugs found.
• 3 long ones. 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
• No signals. The power supply unit is faulty or not connected to the motherboard.
• 1 short. No errors found.
• 2 short ones. RAM parity error.
• 3 short ones. An error occured during the operation of the first 64 KB of main memory.
• 4 short ones. The system timer is defective.
• 5 short ones. The central processor is defective.
• 6 short ones. Defective keyboard controller.
• 7 short ones. The motherboard is defective.
• 8 short ones. Defective video memory.
• 9 short ones. Checksum error of the contents of the BIOS chip.
• 10 short ones. Unable to write to CMOS memory.
• 11 short ones. 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.

Most PCs are equipped with sufficient by good means self-tests, which are executed each time the computer is started. These tests can be very helpful in finding problems with your system's hardware. If any of the self-tests fail, or if incorrect BIOS settings may indicate an error by means of a black screen (i.e., the absence of any messages), by displaying an error message on a blue screen of death, or by sounding a beep (so-called beep code- beep error code) from the system speaker. So why is the computer beeping?

IMPORTANT: If the system speaker is faulty or disabled, the system will not be able to issue beep codes. This possibility should always be borne in mind if, while searching for the cause of the problem, the system does not generate any beeps.

Sound signals(squeak), which take place at the moment of starting the computer system, serve as an initial indicator of the working process of the computer, at each start of which, the BIOS performs self-diagnostics of the hardware of the device, that is, a functional launch of Power On Self Test occurs. If the system is working properly, 1 short beep (squeak) is heard - then booting follows in normal mode... A number of beeps of different durations indicate existing problems and failures in the structural components of the PC.

The computer beeps, which means every squeak

When when you turn on the computer beeps for a competent analysis of the sound signals emitted by them, you need to find out the manufacturer of the BIOS on your PC. When starting the system, go to the BIOS (menu) - key either. The manufacturer is listed in the upper screen area. Each developer company (the most common Award or Phoenix - Award, which is the same, slightly less AMI (American Megatrends Industries), Phoenix BIOS or other little-known) conventional sound signals (squeak) have their own special meanings. Armed with information about the BIOS, you should go to the manufacturer's proprietary resource and get acquainted with the decoding of sound signals through a special table.

Below are the beep codes for one of the AMI BIOS versions. The exact error beeps may differ from those listed depending on the BIOS manufacturer and the BIOS version from the same manufacturer.

Beep code	Description
1 short beep	RAM update failed
2 short beeps	Parity schematic failure
3 short beeps	Failure in the first 64 KB of random access memory (RAM)
4 short beeps	System timer malfunction
5 short beeps	Processor error
6 short beeps	Error in the A20 line control circuit in the keyboard controller
7 short beeps	Error switching to virtual mode
8 short beeps	Video memory read / write error
9 short beeps	ROM BIOS checksum error
10 short beeps	Read / write CMOS memory error
1 long, 2 short	Video controller error
1 long, 3 short	Error in main or extended memory
1 long, 8 short	Monitor test error

For beep codes consisting of one, two, or three short beeps, try to resolve the error by reinstalling the DRAM memory modules in their sockets and making sure they make good contact with the socket. If after that the computer beeps and does not start, then you should replace the memory modules with known good modules. In case of 4, 5, 7 or 10 short beeps, the cause of the error should be found on the system board. In such cases, it may be necessary to replace the entire system board, unless the repair shop supports IC-level computer repairs.

Six short beeps indicate a problem in the keyboard areas of the system. In such cases, try replacing the keyboard with a known good one, or check if the keyboard is equipped with a fuse that may be defective. Eight short beeps indicate a video adapter memory error. Replace the video card (or memory on it, if possible). Nine short beeps indicate BIOS error... In this case, either replace the BIOS chip or reprogram it. updated version BIOS.

For example, the AWARD BIOS developer company:

Beep code	Description
1 short beep	Means that the self-test was completed successfully - without failures and problems
2 very short beeps	Indicate the presence of minor errors - you should examine the fastening of the loops in the connectors
3 extended beeps	It is required to check the connection of the PC keyboard, that is, the notch and re-connection of the keyboard connector
1 short and 1 extended beep	The presence of a RAM error; solution to the problem: reinstalling memory; in case of a non-working module - replacement
1 long and 2 short	Indicate problems with the video adapter; solution: reconnection or replacement of a non-working one
1 long and 3 short beeps	Indicate an error that occurred during the initialization of the keyboard or video adapter; solution: reconnecting the monitor and keyboard connectors
1 long beep and 9 short beeps	Means an error that occurred while reading data "pp" - solution: system overload; flashing content
A series of intermittent short beeps	Indicates a power supply malfunction
A series of long beeps	Reports problems with RAM; solution: you should check the correct connection of the RAM module or examine it for a malfunction

When computer won't boot and beeps, some PCs display text messages only with the error number, and other PCs - the error description.

To computer equipment has always been in a safe working condition, timely preventive professional maintenance of the computer is necessary, which is exclusively within the

Over time, any technique fails, and of course the computer is no exception. A user who has been working at a computer for more than a year knows that with a hardware or software glitch the computer may refuse to work. For example, when the computer beeps and does not turn on, emitting incomprehensible signals to the user, before Windows boots.

First, let's explain why the computer beeps when you turn it on. You should understand that the squeaks are emitted by the speaker, which is located in the system unit. And if you do not know why the system unit beeps, then just below I will show a table by which you can see the reasons for this.

The computer can beep in different ways, emit one long, two short, three short, or even repeat short signals 7 times in a row, etc. To determine what these signals mean, tables of sound signals for different types Bios. Bios is located on the motherboard, which is located in the system unit.

When you turn on the computer, when a black screen appears, it checks the connected equipment to the computer. If all equipment is in working order and correctly connected, then there is Windows boot... If your computer refuses to boot, then this article will help determine which computer hardware is out of order.

After when you understand from the squeaks why the computer beeps, you need to borrow this part from your friend and try to turn on your computer using a part from someone else's computer.

Let's repeat our steps if the computer does not start and beeps.

You need to turn on the computer and count how many squeaks the speaker emits.
See the version of your Bios when you boot your computer. Look for a lettering, Bios version or something like that. Usually the label is located at the very top.
Find your BIOS version and number of beeps in the table.
Next, find this part, connect it to your computer and turn it on. If the computer turns on, there are no squeaks, then you have solved the problem by almost 90 percent. It remains to find or buy a part in order to give the part to the person from whom you took it.

I think you understand, because it was presented as easily as possible.

Note: signals can be short or long.

IBM BIOS

Number of beeps	Description
1 short
1 signal and blank screen	Video system defective
2 short	The video system is faulty (the monitor is not connected)
3 long	Defective motherboard (keyboard controller error)
1 long, 1 short	Defective motherboard
1 long, 2 short	Defective video system (Mono / CGA)
1 long, 3 short	Defective video system (EGA / VGA)
Repetitive short	Malfunctions are related to the power supply or motherboard
Continuous	Problems with the power supply or motherboard
Absent	Defective power supply, motherboard or speaker

Number of beeps	Description
1 short
2 short	Minor bugs found. The monitor screen prompts you to enter the CMOS Setup Utility and correct the situation. Check that the ribbon cable is securely fastened. If you checked the loop and did not help, then you need to replace it
3 long	Keyboard controller error
1 short, 1 long	RAM error
1 long, 2 short	Video card error
1 long, 3 short	Video memory error
1 long, 9 short	Error reading from ROM
Repetitive short	Power supply problem. RAM problems
Repeating long	RAM problems
Repetitive high-low frequency	CPU problems
Continuous	Power supply problem

AMI BIOS

Number of beeps	Description
1 short
1 long, 1 short	Power supply problems
1 long, 4 short	Lack of video card
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 scanner malfunction
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 system board
1 long, 2 short	Video card error (Mono-CGA)
1 long, 3 short	Video card error (EGA-VGA)
1 long, 8 short	Problems with the video card or the monitor is not connected
Missing and blank screen	Processor defective. The contact of the microcircuit may be bent. If that doesn't help, replace the processor.
Continuous beep	Defective power supply or overheating of the computer

AST BIOS

Number of beeps	Description
1 short	Error checking processor registers. Processor malfunction
2 short	Keyboard controller buffer error. Keyboard controller malfunction
3 short	Keyboard controller reset error. Faulty keyboard controller or system board
4 short	Keyboard communication error
5 short	Keyboard input error
6 short	System board error
9 short	BIOS checksum mismatch. The BIOS ROM is defective.
10 short	System timer error. The timer system chip is defective.
11 short	Chipset error.
12 short	Power control register error in non-volatile memory.
1 long	DMA controller 0 error. Channel 0 DMA controller chip is faulty.
1 long, 1 short	DMA controller error 1. The channel 1 DMA controller chip is defective.
1 long, 2 short	The error of blanking the reverse motion of the frame scan. The video adapter may be defective.
1 long, 3 short	Error in video memory. The video adapter memory is defective.
1 long, 4 short	Video adapter error. Video adapter defective.
1 long, 5 short	64K memory error.
1 long, 6 short	Failed to load interrupt vectors. BIOS was unable to load interrupt vectors into memory
1 long, 7 short	Failed to initialize video hardware.
1 long, 8 short	Video memory error.

Pheonix BIOS

A hyphen (-) means a pause.

Number of beeps	Description
1-1-3	Error writing / reading data to / from CMOS memory.
1-1-4	An error was detected while calculating the checksum of the BIOS content.
1-2-1
1-2-2 or 1-2-3	DMA controller initialization error.
1-3-1	Error initializing the RAM regeneration circuit.
1-3-3 or 1-3-4	Initialization error for the first 64 KB of RAM.
1-4-1	Motherboard initialization error.
1-4-2
1-4-3
1-4-4	Error writing / reading to / from one of the I / O ports.
2-1-1	An error was detected when reading / writing the 0th bit (in hexadecimal notation) of the first 64 KB of RAM
2-1-2	An error was detected while reading / writing the 1st bit (in hexadecimal notation) of the first 64 KB of RAM
2-1-3	An error was detected while reading / writing the 2nd bit (in hexadecimal notation) of the first 64 KB of RAM
2-1-4	An error was detected while reading / writing the 3rd bit (in hexadecimal notation) of the first 64 KB of RAM
2-2-1	An error was detected when reading / writing the 4th bit (in hexadecimal notation) of the first 64 KB of RAM
2-2-2	An error was detected while reading / writing the 5th bit (in hexadecimal notation) of the first 64 KB of RAM
2-2-3	An error was detected while reading / writing the 6th bit (in hexadecimal notation) of the first 64 KB of RAM
2-2-4	An error was detected when reading / writing the 7th bit (in hexadecimal notation) of the first 64 KB of RAM
2-3-1	An error was detected while reading / writing the 8th bit (in hexadecimal notation) of the first 64 KB of RAM
2-3-2	An error was detected while reading / writing the 9th bit (in hexadecimal notation) of the first 64 KB of RAM
2-3-3	An error was detected while reading / writing the 10th bit (in hexadecimal notation) of the first 64 KB of RAM
2-3-4	An error was detected while reading / writing the 11th bit (in hexadecimal notation) of the first 64 KB of RAM
2-4-1	An error was detected while reading / writing the 12th bit (in hexadecimal notation) of the first 64 KB of RAM
2-4-2	An error was detected when reading / writing the 13th bit (in hexadecimal notation) of the first 64 KB of RAM
2-4-3	An error was detected when reading / writing the 14th bit (in hexadecimal notation) of the first 64 KB of RAM
2-4-4	An error was detected while reading / writing the 15th bit (in hexadecimal notation) of the first 64 KB of RAM
3-1-1	Error initializing the second DMA channel.
3-1-2 or 3-1-4	Failed to initialize the first DMA channel.
3-2-4
3-3-4	Video memory initialization error.
3-4-1	Serious problems were encountered while trying to access the monitor.
3-4-2	Unable to initialize video card BIOS.
4-2-1	System timer initialization error.
4-2-2	Testing completed.
4-2-3	Keyboard controller initialization error.
4-2-4	Fatal error during the transition of the central processor to protected mode.
4-3-1	RAM initialization error.
4-3-2	Error initializing the first timer.
4-3-3	Error initializing the second timer.
4-4-1	Error initializing one of the serial ports.
4-4-2	Parallel port initialization error.
4-4-3	Math coprocessor initialization error.
Long, continuous beeps	The motherboard is defective.
Siren sound from high to low frequency	The video card is faulty, check the electrolytic capacities for leaks, or replace everything with new ones that are known to be in good working order.
Continuous signal	The CPU cooler is not connected (faulty).

Compaq BIOS

Number of beeps	Description
1 short
1 long + 1 short	Checksum error CMOS memory BIOS. The ROM battery may have run out.
2 short	Global error.
1 long + 2 short	Video card initialization error. Check if the video card is installed correctly.
7 beeps (1 long, 1 s, 1 ?, 1 short, pause, 1 long, 1 short, 1 short)	Malfunction of the AGP video card. Check if the installation is correct.
1 long standing	RAM error, try rebooting.
1 short + 2 long	Defective RAM. Reboot via Reset.

DELL BIOS

A hyphen (-) means a pause.

Number of beeps	Description
1-2	Video card not connected
1-2-2-3	BIOS ROM checksum error
1-3-1-1	DRAM update error
1-3-1-3	Keyboard error
1-3-3-1	Memory defective
1-3-4-1	RAM error on line xxx
1-3-4-3	Low bit xxx RAM error
1-4-1-1	RAM error on the most significant bit xxx

If you have a printer, it is better to print this article, suddenly, at the wrong moment, your computer will not turn on and at the same time beep. In one article I have already touched upon the BIOS topic: "".

When you turn on the computer, the system unit usually emits a squeak. This is a short single signal that indicates the efficiency of the technique. But it happens that the computer emits an unusual sound, more prolonged or several short ones. What does this mean? The squeak is the result of hardware testing of the system unit. But today we will talk about how to decipher this sound.

If the system unit beeps in the Award BIOS

So, if the system unit beeps when turned on, then this may indicate that everything is in order, and that any of the parts is out of order. But in order to find out the signal value, you first need to determine the type of BIOS that is installed in the motherboard. This can be done by pressing the Del button during early boot. Also, if necessary, you can.

If there is Award BIOS, then one signal, short in duration, as in other systems, means that everything is in order. The test passed successfully, the computer is ready for use. Some sistemniks may not make any sounds at all. If, when you turn on the computer, one continuous long signal is emitted, then most likely the power supply is faulty. In this case, you will need to replace it.

Two short beeps may indicate minor errors have been found. In order to fix them, try to check how well the loops are fixed in the connection connectors. hard disk and motherboard. Three long signal indicate that an error has occurred in the keyboard controller. You can try to fix it by restarting your computer. If this does not help, then you may need to replace the motherboard.

One long and two short beeps in Award BIOS is the most common error. The signal indicates that there is a problem with the video card. The situation can be corrected by removing and reinstalling the motherboard. In addition, you should check the contacts of the video card, and how it is connected to the monitor. It is possible that this part will not need to be replaced.

Among the common problems that are easy to deal with on your own, there is one short beep that repeats all the time. This indicates that there are problems with the power supply. It is possible that you just need to remove the dust that has accumulated in it. This procedure should be done when the computer is disconnected from all power sources.

Signals for AMI BIOS

If it doesn’t squeak, but the monitor has a black screen in front of us, then most likely the breakdown is serious enough and we will have to contact a specialist. Most likely, in this situation, the malfunction is too serious. However, first check the connection to the monitor and all other connection pins. If two short beeps sound, then there may be a problem with the RAM. Most likely, modules will need to be replaced. The same can be expected after three short squeaks. First, try restarting your computer and see if the error goes away.

In the case when six short signals sound, the fault lies in the keyboard controller. First you need to check its connection to the motherboard. If nothing happens, then it is recommended to replace the keyboard. After that, you should check the performance of the system unit. In the case when the previous steps did not help, then most likely it is necessary to replace the motherboard.

Five short beeps are a sign that the problem is with the processor. It may need to be replaced. In this case, you will need to choose the right processor, you will learn how to do this. Seven short beeps indicate a motherboard malfunction. One long and two short beeps indicate a problem with the video card. This is indicated by one long and three short squeaks, one long and eight short squeaks. If a similar problem occurs, first you need to check the connection of the video card to the motherboard. In the event that everything is in order, it is possible that this part will need to be replaced.

Phoenix BIOS signals

Many users wonder why the system unit beeps periodically. As is clear from the above, the problem can be anything. The main thing is to correctly determine what exactly the reason is. So, for Phoenix BIOS, one short, one long and three short squeaks indicate that an error has occurred in the CMOS recording. In this case, you will need to replace the memory chip. If that doesn't work, then a new motherboard will be needed.

Problems with the same component are indicated by signals produced according to the “1-2-1” scheme. Malfunctions associated with the RAM are also indicated by the squeak "1-3-1". One long and eight short beeps indicate that the video adapter is not working. Another reason for this signal might be that no monitor is connected. Check the connection of all cables, then reboot the system unit.

Short squeaks that are constantly repeated indicate that the power supply is not working properly. In order to fix this, first you need to check the performance of this part. Also, see if the cords are cut or if the surge protector is working properly. If problems arise after this, you may still need to replace the power supply with a new one.

You can reset the BIOS by removing the battery. Another way is to use a special jumper, a jumper. You can find out where it is located by carefully studying the instructions for the motherboard.

So, most of these problems can be solved on your own if you know exactly how to do it. For example, it is quite easy to check the connection of a monitor or keyboard to the system unit. It is also easy to replace the battery on the motherboard. However, if the problem is more serious, then it is better to initially consult a specialist if you are not confident in your abilities, so as not to aggravate it even more.