2 Long BIOS Signals. AMI BIOS sound signals. Major manufacturers of BIOS chips

Good day ... with each, new inclusion personal computerRunning automatic program Diagnostics of POST self-test (Power-On-Self-Test). What "recorded" in the BIOS ROM. In this small post, I would like to give some examples of tables with the decoding of PC signals. I.e sound signals Computer or what bios is sicked.

To begin with, to use these tables you will need to know your BIOS manufacturer motherboard. The BIOS manufacturer to find out quite simple. It is necessary for the BIOS itself, (description below) and find the signature of the manufacturer.

A few words about the POST diagnostic program. This program Checks all the most important components of a personal computer. Such as: processor performance control, CMOS. Supporting motherboards chips and of course produces a quick speed of RAM. All this information about the performance of the PC, the computer produces on the micro speaker as a bea sound signal (BIP).

If the POST program has completed the diagnosis of the most important components of the computer and if the PC is in excellent condition, then you must hear one short beep (BIP). After that, the operating system is immediately started. If there is an unemployed component when the computer starts, the POST will immediately display a certain beep (several short or several long beeps). Thus, it determines the detected error. Accordingly, the computer stops working.

How to enter the BIOS Windows 7

In order to enter the BIOS with Winows 7 or XP, you need to press a specific key, or the keys set immediately after the PC is turned on. Accordingly, before downloading the operating system of the computer.Once you have pressed the reboot button, you immediately need to press a specific key. Or key set. It is advisable to tickle it before entering the BIOS menu.

Usually, a specific inscription in English is displayed on the monitor screen (Press Del to Enter Setup). Which refers to the entrance to the PC settings. The delete key is often used. Other options for hot keys are also found.

Keyboard shortcut options in Windows 7

• Ctrl + Alt + ESC
• Ctrl + Alt + Ins
• Ctrl + Alt.

POST diagnostic programs and computer sound signals

Award Bios.

Sound signals sequence	Error description
1 short	Successful Post.
2 short	Multile errors were found. On the monitor screen appears a proposal to enter the CMOS program Setup Utility and correct the situation. Check the reliability of the fastening of the loops in the connectors hard disk and motherboard.
3 long	Keyboard controller error
1 short, 1 long	RAM error (RAM)
1 long, 2 short	Video card error
1 long, 3 short	Error video memory
1 long, 9 short	Error reading from ROM
Repeating short	Problems with the power supply; Problems with RAM
Repeating long	Problems with RAM
Repeating high-low frequency	Problems with CPU
Continuous	Power supply problems

Ami Bios.

One short signal
Two short signals	Error dough RAM
Three short signals	RAM test error (first 64 kb)
Four short signals	The motherboard is faulty, (system timer error)
Five short signals	Faulty processor. Try to remove the processor and set it again, (if you are not afraid). If it does not help, then you need a replacement processor.
Six short signals	Motherboard faulty, (keyboard controller error)
Seven short signals	The motherboard is faulty, (virtual mode error). Try to restart the computer if it does not help, then only the replacement of the motherboard.
Eight short signals	Faulty video adapter or video memory test error
Nine short signals	Check summary BIOS ROM
Ten short signals	Error writing to CMOS memory. You must "reset" the BIOSA memory, then doublech the two contacts located next to the battery (Clear CMOS), or remove the battery for 20 minutes by turning off the power cord. If it does not help you have to change the chip.
	RAM errors. Try the memory strips reinstall.
(One long and two short), (one long and three short), (one long and eight short) signals	Fault video card.

Dell Bios.

One signal, pause, two signals	Video card error. You need to check the video card connection
One signal, pause, two signals, pause, two signals, pause, three signals	BIOS chip error
One signal, pause, three signals, pause, one signal, pause, one signal	BIOS chip error
One signal, pause, three signals, pause, one signal, pause, three signals	Keyboard faulty
One signal, pause, three signals, pause, three signals, pause, one signal
One signal, pause, three signals, pause, four signals, pause, one signal
One signal, pause, three signals, pause, four signals, pause, three signals	Error checking RAM. It is worth checking the memory
One signal, pause, four signals, pause, one signal, pause, one signal	error checking RAM. It is worth checking the memory

IBM BIOS.

Ast Bios.

One short signal	The processor is faulty
Two short signals (three short signals)
Four short signals	Keyboard faulty
Five short signals	Keyboard faulty
Six short signals	Motherboard faulty
Nine short signals	BIOS microcircuit faulty
Ten short signals	Timer microcircuit faulty
Eleven short signals	The chipset driver is faulty
Twelve short signals	Non-volatile memory power failure
One long signal	DMA Controller Microcircuit Faulty (Channel 0)
	DMA Controller Microcircuit Faulty (Channel 1)
	Video adapter is faulty
One long and three short signals	Fault memory video adapter
One long and four short signals	Video adapter is faulty
One long and five short signals	RAM faulty
One long and six short signals	Errors loading vector interrupts in memory
One long and seven short signals	Video equipment is deficient
One long and eight short signals	Video memory is faulty

Compaq BIOS.

One long signal	The POST error diagnostic program has not found, it works fine. All OK.
One long and one short signal	Needless BIOS memory checksum. It is necessary to check the batteries
Two short signals	Total error
One long and two short signals	The video card is faulty. It is necessary to reinstall the video card
Seven signals	AGP Map is faulty. It is necessary to reinstall the video card
One long (repeated)	RAM faulty
One short and two long signals	RAM faulty

Phoenix Bios.

The signals of this BIOS go through short sound signals pause. For example - 1-2-1 (1 signal, pause, 2 signals, pause, 1 signal)

One signal, pause, one signal, pause, three signals	An error occurred when accessing the BIOS memory
One signal, pause, one signal, pause, four signals	Needless BIOS memory checks. It is necessary to check the batteries
One signal, pause, two signal, pause, one signal	Motherboard faulty
One signal, pause, two signal, pause, two signals (one signal, pause, two signal, pause, three signals)	DMA Controller Microcircuit Faulty
One signal, pause, four signal, pause, one signal	Motherboard faulty
One signal, pause, four signal, pause, two signals	RAM faulty
One signal, pause, four signal, pause, three signals	Error system timer
One signal, pause, four signal, pause, four signals	Fault of one of the I / O ports
Two signals, pause, one signal, pause, one signal, (two signals, pause, one signal, pause, two signals), (two signals, pause, one signal, pause, three signals), (two signals, pause, one signal, pause, four signals)	RAM faulty
Two signals, pauses, two signals, pause, one signal, (two signals, pause, two signals, pause, two signals), (two signals, pause, two signals, pause, three signals), (two signals, pause, two Signal, pause, four signals)	RAM faulty
Two signals, pauses, three signals, pause, one signal, (two signals, pause, three signals, pause, two signals), (two signals, pause, three signals, pause, three signals), (two signals, pause, three Signal, pause, four signals)	RAM faulty
Two signals, pause, four signals, pause, one signal, (two signals, pause, four signals, pause, two signals), (two signals, pause, four signals, pause, three signals), (two signals, pause, four Signal, pause, four signals)	RAM faulty
Three signals, pause, one signal, pause, one signal	The second DMA channel is faulty
Three signals, pause, one signal, pause, two signals, (three signals, pause, one signal, pause, four signals)	Channel DMA is faulty
Three signals, pause, two signals, pause, four signals	Keyboard controller is faulty
Three signals, pause, three signals, pause, four signals	Video memory faulty
Three signals, pause, four signals, pause, one signal	Monitor is faulty
Three signals, pause, four signals, pause, two signals	Malfunction Chip BIOS Video
Four signals, pause, two signals, pause, one signal	System timer is faulty
Four signals, pause, two signals, pause, two signals	Ending test
Four signals, pause, two signals, pause, three signals	Keyboard controller is faulty
Four signals, pause, two signals, pause, four signals	When switching to the protected mode, the processor fails
Four signals, pause, three signals, pause, one signal	Error RAM
Four signals, pause, three signals, pause, two signals (four signals, pause, three signals, pause, three signals)	Timer error
Four signals, pause, four signals, pause, one signal	Fault serial port
Four signals, pause, four signals, pause, two signals	Fault parallel port
Four signals, pause, four signals, pause, three signals	Mathematical processor fault
Long repeating	Motherboard faulty
Continuous	Fan faulty (cooler) processor
Siren	Video card faulty

Conclusion

Do not perceive this information as absolutely reliable. Since computer sound signals may vary, as new BIOS versions are released. At this, I finish this post, I hope for you it turned out to be useful ...

Almost every one of us by running a computer or laptop, heard the feeding signal from its depths. If this did not happen, you need to check if you have a corresponding speaker.

But sometimes when the computer is faulty and pre-testing, the BIOS conducted reveals errors, strange combinations of soundswho practically won't say anything to the injective person, but much can tell specialists about the causes of breakage and ways to eliminate them.

Faced with a similar situation, it is necessary first to determine version and the BIOS manufacturer installed in the patient. From this largely depends, which specifically failed, and, consequently, further expenses and actions.

All, regardless of the manufacturer, communicate with the user using two types of sound signals: Short Pick (KP) and long Pick (DP).

AMI BIOS Error Signals

List of signals:

1	1 dp.	All systems operate in normal mode.
2	1 kp	Faulty or not compatible with motherboard RAM module.
3	2 kp + 3 kp	In principle, duplicate the problem number 2 and require the same solutions algorithm.
4	4 kp	System timer errors. As a reason, there are either errors of one of the expansion cards, or the "dying" motherboard.
5	5 kp	Faulty or does not suit the processor, extension card errors.
6	6 kp	Most often talks about a faulty keyboard.
7	7 kp	Not worked the interrupt controller. Solution options are similar to clause 4.
8	8 kp	Errors handed over video card.
9	9 kp	The BIOS checksum returned an invalid value.
10	10 kp	CMOS memory returned read-write error.
11	11 kp	An error occurred when testing a cache.
12	1 dp. + 2 kp	Another option when testing the video card.
13	1 dp. + 3 kp	RAM does not work.
14	1 dp. + 8 kp	The problem when connecting the monitor, or in a faulty video card.
15	2 dp. + 2 kp	On the modern computers Practically unknown combination, because Speaks about problems with the flexible disk controller.
16	Additionally, I should say about continuous sound signalindicating the overheating of the computer or malfunction of the power supply and the absence of a signal when empty screen Monitor indicating a malfunction in the processor.

BIOS AWARD errors

Bios Award can squeak as follows:

1	1 kp	Most often sounds from serviceable computers and announces the absence of problems.
2	Lack of signals continuous Pick or repeating KP - Nutrition problems.
3	1 dp.	The error returned the RAM.
4	2 kp	Errors detected by pre-testing are not critical. As a solution, you can try to upload the original bIOS settings Or check the fasteners of the loops.
5	3 DP.	Detected problems with the keyboard connection.
6	1 dp. + 1 kp	Return memory is faulty, you can try to change the planks in some places, take out one of them, clean the contacts with ordinary eraser.
7	1 dp. + 2 kp	This combination informs about a faulty video card.
8	1 dp. + 3 kp	Perhaps faulty or does not respond keyboard.
9	1 dp. + 9 kp	Something is not so in the BIOS itself, you can try to reset it by driving a battery or snoring the corresponding jumper.
10	Frequently repeated short pisks Signals about problems with the power supply.
11	Long signalsRepeating with the same frequency talk about problems in RAM.
12	Continuous signal - Nutrition problems.
13	Alternating High-Low Frequency Signals Indicate problems with the central processor.

Possible malfunctions Phoenix BIOS

The next part will be useful for decrypting signals from the Phoenix BIOS language. Here I would like to note that he communicates with us only short signals, and when deciphering, you should pay attention to combinations. Suppose combination 1C + 1C + 4C, you should read as a signal gap signal gap 4th multiple signal. Let's proceed.

1	1C. + 1C. + 3S.	Error reading or writing dynamic memory SMOs.
2	1C. + 1C. + 4С.	The BIOS microcircuit contains errors in the checksum.
3	1C. + 2s + 1C.	A problem with the motherboard was found.
4	1C. + 2s + 2C, 3S. + 1C. + 1C, 3S. + 1C. + 2s	The error returned from the DMA controller.
5	1C. + 2s + 3S.	Testing read-write in DMA completed with an error.
6	1C. + 3S. + 1C., 1C. + 3S.+ 3S., 1C. + 3S. + 4С., 1C. + 4С. + 2s, 4С. + 3S. + 1C.	These combinations talk about problems with rAM.
7	1C. + 4С. + 1C., 3S. + 1C. + 4С.	The computer reports problems with the motherboard.
8	1C. + 4С. + 3S., 4С. + 2s + 1C.	Something is wrong with the system timer.
9	1C. + 4С. + 4С.	One of the I / O ports of information or the device connected to it is faulty. Try to disable everything too much.
10	3S. + 2s + 4С., 4С. + 2s + 3S.	Faulty either keyboard controller or it itself
11	3S. + 3S. + 4С.	Testing video memory completed with an error.
12	4С. + 2s + 4С.	May not work cPU. It occurs when working in protected mode.
13	4С. + 3S. + 4С.	Real-time hours work incorrectly.
14	4С. + 4С. + 1C., 4С. + 4С. + 2s	Testing parallel ports is completed with an error.
15	4С. + 4С. + 3S.	Faulty mathematical coprocessor.
16	Signals long, invertible Talk about faults in the motherboard.
17	Sounds resembling howl Sirena, alternating frequency, indicates breakdowns in the video card.
18	If the central processor cooling fan is not connected, you will hear continuous signal.

COMPAQ BIOS signals

As in most other cases 1 kp When the computer is turned on, it indicates the absence of errors.

1. 1 dp. + 1 kp - It occurs when CMOS error, often talks about the need to replace the battery.
2. 2 kp - Global error.
3. 1 dp. + 2 kp - Discovered problems with video card.
4. 7 kp - If there is an AGP slot to connect video cards, speaks of their malfunction.
5. 1 kp + 2 dp. or Standing long Signal, talk about problems in RAM.

How does Dell BIOS signals

Like the BIOS from Phoenix, the Dell BIOS should pay attention not to so much on a series of short and long signals as the fourth combinations that are issued in the presence of errors.

• 1C. + 2s - There is no video card.
• 1C. + 2s + 2s + 3S. - CMOS error.
• 1C. + 3S. + 1C. + 1C. - Update DRAM completed with an error.
• 1C. + 3S. + 1C. + 3S. - A malfunction is detected in the keyboard.
• 1C. + 3S. + 3S. + 1C., 1C. + 3S. + 4С. + 1C., 1C. + 3S. + 4С. + 3S., 1C. + 4С. + 1C. + 1C. - The appearance of any of these combinations of signals speaks of a malfunction of RAM.

Alerts Ast Bios.

What signals and what is valid from the AST BIOS.

1	1 kp	Such a sound is talking about the malfunction of the CPU.
2	2 kp or 3 kp	BIOS has discovered problems in the keyboard controller.
3	4 kp	Unable to establish a connection with the keyboard.
4	5 kp	Something does not work in the keyboard input.
5	6 kp	Problems with motherboard.
6	9 kp	Incorrect CMOS checksum, possibly damaged BIOS microcircuit.
7	10 kp	There were malfunctions with a system timer.
8	11 kp	Fault chipset.
9	12 kp	The power management register returned the error.
10	1 dp. + 1kp or 1 dp.	The DMA controller is faulty.
11	1 dp. + 2 kp, 1 dp. + 3 kp, 1 dp. + 4 kp	Any of these sound schemes talks about problems in the video adapter.
12	1 dp. + 5 kp	Memory error.
13	1 dp. + 6 kp	Memory vectors can not be downloaded to BIOS memory.
14	1 dp. + 7 kp	Video equipment is not initialized.
15	1 dp. + 8 kp	Video memory faulty.

What the UEFI BIOS signals

UEFI is an updated version of the BIOS, which is used on newer motherboard models. UEFI also has a number of sound signals. So how to decipher them?

1
2	2 kp	There are not critical errors. When loading is offered to go to CMOS and manually fix them. You can try to check the plumes.
3	3 DP.	The error issued a keyboard controller
4	1 kp + 1 dp.	Faulty RAM
5	1 dp. + 2 kp	An error signals a video card
6	1 dp. + 3 kp	Error video memory
7	1 dp. + 9 kp	Error reading from ROM
8	Continuous short signals Speak about a malfunction with a power supply or RAM.
9	Continuous long beeps	Problems with RAM
10	Alternated long and short signal	Processor malfunction
11	Continuous Pick Also flashes about problems with power supply

IBM BIOS malfunctions

Well, on the late IBM BIOS.

1. 1 kp - Everything works in normal mode.
2. 2 kp - Problems with the work of video equipment, the monitor is not connected.
3. 3 DP. - The keyboard controller does not work on the motherboard
4. 1 dp. + 1 kp - Testing revealed malfunctions in the motherboard.
5. 1 dp. + 2 kp - MONO / CGA video system has failed.
6. 1 dp. + 3 kp - EGA / VGA outputs will be submitted.
7. Short Pick, constantly repeats talks about insufficient nutrition or about problems with the motherboard. Just as a continuous sound.

Below are the values \u200b\u200bof the sound signals of some motherboards.

Award Bios.

- No signals - faulty or not connected to the motherboard power supply.

- Continuous signal - faulty power supply. Replacement required.

- 1 short signal - errors are not detected. Typical behavior of a working computer - the computer is loaded normally.

- 2 short signals - minor errors have been detected. A proposal appears on the monitor screen to enter the CMOS Setup Utility program to correct the situation. Check the reliability of the fastening of the loops in the hard disk and motherboard connectors.

- 3 long signals - keyboard controller error. Restart the computer. You may need to replace the motherboard.

- 1 long + 1 short signals - problems with RAM are detected. Check the installation of memory modules. Either replace other memory modules.

1 Long + 2 short signals - the problem with the video card is the most common malfunction. It is recommended to pull out the board and insert. Also check the connection to the monitor video card.

1 Long + 3 short signals - keyboard initialization error. Check the keyboard connection with the connector on the motherboard.

1 Long + 9 short signals - Error reading data from a permanent memory chip. Overload a computer or reflash the contents of the chip (if this mode is supported).

1 Long repeating signal - incorrect installation of memory modules. Try to pull out and paste them again.

1 short repeating signal - problems with power supply. Try to remove the dust accumulated in it.

Ami Bios.

There are no signals - faulty or not connected to the motherboard power supply.

1 short signal - errors are not detected. The computer is ready for work.

2 short signals - Error the parity of RAM. Restart the computer. Check the installation of memory modules. It is possible to replace the memory modules.

3 short signals - error when working main memory (first 64 KB). Restart the computer. Check the installation of memory modules in slots. It is possible to replace the memory modules.

4 short signals - defective system timer. It is possible to replace the motherboard.

5 short signals - the central processor is defective. It is possible to replace the processor.

6 short signals - the keyboard controller is defective. Check the quality of the connection to the latter with the connector on the motherboard. Try replacing the keyboard. If it does not help, it is possible to replace the motherboard.

7 short signals - faulty motherboard.

8 short signals - problems with video card.

9 short signals - the error of the control sum of the BIOS microcircuit content. A corresponding message may appear on the monitor screen. It requires either the replacement of the chip, or overwrite its contents (if it is flash memory).

10 short - it is impossible to record in CMOS memory. CMOS or motherboard chip replacement is required.

11 short signals - faulty external cache memory. Cash memory modules are required.

1 Long + 2 short signals - Faulty video payment. Check the monitor connection with a video card connector. You may need to replace the video card.

1 Long + 3 short signals - Faulty video payment. Check the monitor connection with a video card connector. You may need to replace the video card.

1 Long + 8 short signals - problems with video card, or monitor is not connected. Check again the installation of the video message in the expansion slot.

Phoenix Bios.

Manufacturers of Phonenix BIOS have developed their own system of alternating signals.

1-1-3 - CMOS write / read error. Replacing the CMOS memory or motherboard chip. Also, it may be discharged a battery that feeds the CMOS microchro.

1-1-4 - error checksum of the contents of the BIOS microcircuit. Replacing the BIOS chip or flashing (when using Flash memory).

1-2-1 - faulty motherboard. Turn off a computer for a while. If it does not help, replace the motherboard.

1-2-2 - DMA controller initialization error. It is possible to replace the motherboard.

1-2-3 - Error trying to read / write to one of the DMA channels. It is possible to replace the motherboard.

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

- 1-3-3 - error when testing the first 64 KB of RAM. Replace memory modules.

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

- 1-4-1 - faulty motherboard. It is possible to replace it.

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

- 1-4-3 - error of the system timer. It is possible to replace the motherboard.

- 1-4-4 - Error contacting the I / O port. This error It may be caused by a peripheral device using this port for its work.

- 3-1-1 - the initialization error of the second DMA channel. It is possible to replace the motherboard.

- 3-1-2 - the initialization error of the first DMA channel. It is possible to replace the motherboard.

- 3-1-4 - faulty motherboard. Turn off a computer for a while. If it does not help, you will have to replace the motherboard.

- 3-2-4 - keyboard controller error. It is possible to replace the motherboard.

- 3-3-4 - error when testing video memory. Perhaps the video library itself is faulty. Check the setting of the video message in the expansion slot.

- 4-2-1 - the error of the system timer. It is possible to replace the motherboard.

- 4-2-3 - error when operating the A20 line. Faulty keyboard controller. Try to replace the motherboard or keyboard controller.

- 4-2-4 - error when working in protected mode. Perhaps the central processor is defective.

- 4-3-1 - Error when testing RAM. Check the installation of modules in slots. It is possible to replace the memory modules.

- 4-3-4 - real-time watches error. It is possible to replace the motherboard.

- 4-4-1 - Error testing a serial port. Can be caused by a device using a serial port for its work.

- 4-4-2 - Test error parallel port. It may be caused by the device using a parallel port for its work.

- 4-4-3 - error when testing a mathematical coprocessor. It is possible to replace the motherboard.

This Entry Was Posted on February 22, 2011 AT 7:12 PP and IS Filed Under. You can Follow Any Responses to this Entry Through the Feed. You can, or from Your Own Site.

When you hear when booting a PC signal BIOS 1 long 2 short, then this means that a faulty element was detected during the equipment check, and the load cannot be continued. Usually, in this case, the computer does not display any image on the monitor, and the user sees just a black screen. Therefore, a textual error message in this case does not make any sense, since it cannot be read.

Any sounds published by the BIOS when loading a PC, with the exception of the signal on the successful end of testing (as a rule, it is one short squeak, less often - one long), are special messageswhich are encoded by a combination of short and long signals. In most cases, the value of such messages varies depending on the BIOS manufacturer, and sometimes - and depending on the BIOS version.

Bios 1 Long 2 short signals are used by many BIOS manufacturers, such as IBM, Award, Ast, Compaq, Quadtel, American Megatrends (AMI). However, in contrast to many other sound combinations, this combination has almost everywhere similar value. If you hear that immediately after starting the computer, there is one long signal, and after it, two more signals are shorter, then in most cases this situation is caused by a problem with a computer video system.

However, in various BIOS, such a sound message has its own characteristics on which it should be stopped in more detail. So, for example, in IBM BIOS, as well as in AMI Bios is given The signal is generated only if the computer is equipped with a MONO / CGA video card. Since similar graphic adapters Now it is almost impossible to meet, the chance to face a similar signal is extremely small.

In AST BIOS, one long and two short pisctions are generated only if there is a problem with the frame of the video adapter signal. For the encoding of the other errors of the video adapter in AST, other types of signals are designed.

In Compaq BIOS, such a message contains a slightly different meaning - an error of the video card initialization. If you use an outercorder, then after you hear similar signals, you should remove graphic map From the slot and try to insert it back again. It is possible that in this case the error will no longer appear.

Approximately the same value is the signal consisting of three sounds - one long and two short, in Award Bios and Quadtel BIOS. Methods for correcting the situation in these BIOS are similar to methods that are serving for BIOS from Compaq. In Award BIOS, a similar error message may be issued in the event that the monitor is not connected to the computer. Therefore, first of all, even before touching the video card, it is best to check the cable connecting the computer and the monitor.

Very often a malfunction leading to the impossibility of loading a computer and simultaneously serving a sound signal consisting of one long and two short beeps, you can be eliminated on your own. If you still fail to do this, then the best way out will refer to computer repair professionals.

It often happens that even an experienced sysadmin forgets the codes and BIOS signals (especially since the new motherboards are already equipped with UEFI), what to say about not a professional. Yes, and signals will help quickly, and in domestic cases, and often solve a problem with a non-starting computer or laptop for free.

So the BIOS microcircuits from Award Ami and Phoenix look like.

By the way, for reference: BIOS is Basic Input-Output System or in Russian speaking basic system I / O In other words, this is a low-level program, which sews tightly in the motherboard chip of your computer. BIOS is loaded when the computer is turned on and is responsible for initializing its hardware components, checking their performance and start correctness. Then, the bootloader program starts running operational windows system, Linux Well, or that you have installed there ...

Here you have to make a little retreat and tell that the signals of this BIOS itself may differ depending on the manufacturer's company. Consider the most popular options, all of them will be three - Ami Bios, Award Bios, Phoenix BIOS.

Under the catalog of the table with the BIOS error description.

AMI BIOS Sounds

In all versions of AMI BIOS, a successful ending of self-test is one short beep, after which the installed OC is loaded. Other AMI BIOS audible signals I specified in the table:

Sound signal	Description
2 short	RAM ERROR MEASURE
3 short	Error of the protected sector 64 KB RAM
4 short	Malfunction of the motherboard system timer
5 short	Malfunction of the central processor
6 short	Keyboard error
7 short	Motherboard Malfunction
8 short	Fault of the video card memory
9 short	BIOS checksum error
10 short	Unable to record in CMOS
11 short	Error RAM
1 long and 1 short	Power supply fault
1 long and 2 short	Error working video card
1 long and 3 short	Error working video card
1 long and 4 short	There is no video card, the video card is not found
1 long and 8 short
3 long
5 short and 1 long	There is no operational memory
permanent signal

AWARD BIOS Sounds

With the correct post-test signal here everything is the same as the previous version - one short Award BIOS sound signal means everything is OK.

The remaining signals are somewhat different - we look at the table:

Sound signal	Description
1 short, repeated	Power supply fault
1Poveful, long
3 long	Keyboard error
1 long and 1 short	Malfunction of RAM
1 long and 2 short	Error working video card
1 long and 3 short	Keyboard error
1 long and 9 short	Error reading ROM.
1 long and 8 short	The monitor is not connected, the problems with the video card
3 long	RAM issues, memory test is not passed
permanent signal	Problems with power supply, overheating PC

Phoenix BIOS Sounds

The third version of the signals from Phoenix. Bios from this manufacturer meets more and less, but nevertheless.

It must be said here that with him everything is not the case with the previous two. Yes, yes, the guys decided to shift, and not to do since they did not have double signals, but triple. In practice, this means only the fact that for example, a signal of problems with the supply of power on the video card will look like three short signals, pauses, three short signals, pause, then 4 short signals. In the table I will write them as 3-3-4. So let's go ...

PHOENIX error codes:

Sound signal	Description
1 – 1 – 2	The error of the central processor
1 – 1 – 3	Error writing in CMOS, Maternal fault fees
1 – 1 – 4	BIOS ROM checksum error
1 – 2 – 1	Defective interrupt timer
1 – 2 – 2	DMA controller error
1–2 – 3	DMA reading or writing error
1 – 3 – 2	Error RAM
1 – 3 – 3
1 – 3 – 4	RAM controller error
1 – 4 – 1	Address RAM error
1 – 4 – 2	Error parity RAM
3 – 2 – 4	Error keyboard
3 – 3 – 1	Battery malfunctionCMOS. on motherboard
3 – 3 – 4	Fault video card
3 – 4 – 1	Fault video card
4 – 2 – 1	Malfunction of a system timer
4 – 2 – 2	CMOS error
4 – 2 – 3	Keyboard fault
4 – 2 – 4	CPU error
4 – 3 – 1	Error in RAM test
4 – 3 – 3	Timer error
4 – 3 – 4	RTC error
4 – 4 – 1	Fault serial port
4 – 4 – 2	Fault parallel port
4 – 4 – 3	Coprocement Problems

I just want to add that in the case independent repair PC or laptop always disconnect it from the power supply And then you can safely climb inside armed with a screwdriver and the other necessary tool.

In the next article, I will tell about UEFI. What it is, why she came to us and other interesting moments.

P.S. In some cases, with memory errors, it helps to pull the memory bar from the slots, wipe the contacts of the RAM cards by a conventional soft eraser and the memory is back into the ranks! If the memory has not burned down, but simply fails, you can also try to change the board with the RAM to the banks on the banks, provided that the memory itself is changed in places the same.

P.P.S. At the end of this article, I post simply tables of three BIOS codes in the form of pictures. They can be used as a crib retaining on a phone, tablet or computer.

Cheat sheets with a description of BIOS signals for printing

It seems that everyone wanted to write - wrote. He tried clearly and without water, as always. If there are any questions - answer the comments.

In contact with