Speaker one long. BIOS signals

Probably, almost every computer user noticed that when starting, a characteristic sound of a squeak is distributed. In most cases, if everything is fine, one short beep sounds. Thus, the system informs us about the PC status during startup, before Windows boot.

Bios. (Basic Input / Output System - Basic I / O System) - System Level Program and Located in the BIOS microprocessor. Designed for the initial launch of the computer, loaded first after turning on the computer.

When starting the system, the BIOS runs the computer and the self-test procedure (Power-On Self Test - POST) is performed with a general diagnosis of the system and if there are problems, the computer will publish a specific sequence of signals that you will only have to decrypt.

If you do not hear any sounds, it is quite possible that you have no speaker on the motherboard. In the event of a computer malfunction, no dynamics complicates the search for a problem, but is not critical.

In modern motherboards, the speaker began to do the built-in. On older models, the speaker connected to the board.

Manufacturer BIOS.

Each BIOS manufacturer has its own sequence and decryption of sound signals. Before deciphering, you need to know the manufacturer.

Method 1

The easiest way to identify the firm is at the time of download, the manufacturer and version of the BIOS are usually indicated.

Method 2

You can go to the BIOS during startup and find the "System Information" item or using the EVERES program in Windows. In both cases, all information will be indicated.

Now all modern computers come out with an updated BIOS called UEFI.

Now, when we know the BIOS manufacturer, we will not be difficult to decipher the sound signals.

Ami Bios.

Award Bios.

Phoenix Bios.

Phoenix BIOS sound signals consist of several series of short beeps that follow with some interval. For example, a signal with code 1-2-3 will sound like this: one short beep, pause, two short beeps, pause, three short beeps.

IBM BIOS.

Ast Bios.

Compaq BIOS.

Dell Bios.

As in the case of Phoenix BIOS, the Dell BIOS uses a similar signal system. For example, 1-3-1-1 will sound like this: one beep, pause, three beeps, pause, one beep, pause, one beep.

Quadtel Bios.

UEFI BIOS.

AMI BIOS All versions inform the user about the successful end of the self-test procedure with a characteristic "pisk" - one long sound signal, after which the control is transmitted to the loader of the operating system.

In order for you to hear this beep, the computer block or laptop must be equipped with a system speaker - a built-in "Cook". Alas, this condition is not always performed. Sometimes the manufacturer saves a penny accessory, and loading occurs in complete silence.

If something went wrong, in the process of passing the POST procedure, certain problems were identified, the BIOS of the computer will report this with a combination of several audible signals indicating the failed component. In most cases, when problems do not affect the video card, you will see an error message on the computer screen. But if you cannot initialize the video card (for example, it itself is a source of problems), sound signals remain the only way to localize the problem.

The old versions of Ami BIOS used a sufficient number of all sorts of combinations. All of them are reduced into one table.

Do not forget all manipulations with computer hardware components, somehow replacing memory modules, extracting and adding extension cards, etc. It can only be done if the computer is fully de-energized - it must be physically disconnected from the mains. Before opening the system block case, it is recommended to remove the power block of the system unit from the outlet. By this, you will provide the lack of motherboard duty, plus, secure yourself from possible electric shock.

Modern versions of AMI BIOS are much more modest, the number of signals has significantly reduced: only simple combinations of short signals are used.

Moreover, in the last AMI BIOS revisions, sequences of the 1st long, 1st, 3, and 6-, and 7 or 8 or short beeps remain, the remaining combinations are no longer used.

Separately, it is worth noting a continuous beep-changing sound, resembling siren. It can be caused by two reasons: power supply fault, or overheated by computer. If you have access to the intenshes of the system unit, check all power connectors on the motherboard, check the normal adjacent of radiators, the operation of all fans on the coolers.

Signal values \u200b\u200bvary depending on the BIOS manufacturer. You can find it in the documentation for the motherboard. You can also see the BIOS manufacturer on the first - second screensaver when downloading a computer.

And so, here is a list of BIOS signals and their values:

BIOS Award signals

• Continuous signal - faulty power supply;
• 1 short repetitive signal - problems with power supply;
• 1 long repeating signal - malfunction of RAM;
• 2 short signals - minor errors were found. Check the reliability of the fastening of the loops and cables in the motherboard connectors. Install in the BIOS default values;
• 3 long signals - a keyboard controller malfunction;
• 1 long and 1 short signals - a malfunction of RAM;
• 1 Long and 3 short signals - keyboard fault;
• 1 Long and 9 short signals are an error when reading data from the BIOS chip.

BIOS AMI signals

• There are no signals - faulty or not connected to the motherboard power supply;
• 1 short signal - errors are not detected, computer is working;
• 2 short signals - a malfunction of RAM;
• 3 short signals - the error of the first 64 KB of the main memory;
• 4 short signals - a system timer malfunction;
• 5 short signals - a malfunction of the central processor;
• 6 short signals - a keyboard controller malfunction;
• 7 short signals - motherboard malfunction;
• 8 short signals - a malfunction of the RAM video card;
• 9 short signals - an error when checking the BIOS microcircuit checksum;
• 10 short signals - it is impossible to record in CMOS memory;
• 11 short signals - a malfunction of RAM;
• 1 Long and 2 short signals - a video card malfunction;
• 1 Long and 3 short signals - video card malfunction;
• 1 Long and 8 short signals are a freak of the video card.

Bios Phoenix signals

These signals are read as x. signals - pause - y. signals - pause - z. Signals. For example, 1-4-2 - one - pause - four - pause - two.

• 1-1-3. CMOS write / read error;
• 1-1-4. Error checksum of the contents of the BIOS microcircuit;
• 1-2-1. Faulty motherboard;
• 1-2-2. DMA controller initialization error;
• 1-2-3. Error trying to read / write to one of the DMA channels;
• 1-3-1. Error regeneration of RAM;
• 1-3-3. Error testing the first 64 KB of RAM;
• 1-3-4. Similar to the previous one;
• 1-4-1. Faulty motherboard;
• 1-4-2. Error testing RAM;
• 1-4-3. System timer error;
• 1-4-4. Error accessing the I / O port;
• 2-X-X. Problems with the first 64k memory (x - from 1 to 4);
• 3-1-1. The initialization error of the second DMA channel;
• 3-1-2. Initialization error of the first DMA channel;
• 3-1-4. Faulty motherboard;
• 3-2-4. Keyboard controller error;
• 3-3-4. Error testing video memory;
• 4-2-1. System timer error;
• 4-2-3. A20 line error. Defective keyboard controller;
• 4-2-4. Error when working in protected mode. It is possible that the central processor is defective;
• 4-3-1. Error when testing RAM;
• 4-3-4. Real-time clock error;
• 4-4-1. Error testing serial port. May be caused by a device using this port;
• 4-4-2. Error testing a parallel port. See above;
• 4-4-3. Error testing mathematical coprocessor.
• 4-2-3-3. Extended Block Move. Incompatibility of components or malfunction PCI-E.

Starting a computer, and you hear BIOS long signals repeating, and the computer does not boot. What is the related situation, and what is best to do if this happens? The answer to this question largely depends on the type of BIOS installed in your computer.

First of all, we agree that under the term "repeating" we will keep in mind the sounds that repeated constantly, the countless number of times, just as they make the beeps of waiting in the handset, and not some specific number. It should be borne in mind that long BIOS sound signals, in contrast to short, do not have a significant number of times, so if long signals are repeated, let's say, more than four times, it becomes clear that we are dealing with a long repeating signal, And not with some other.

If your computer has a motherboard with a BIOS from Award, then long repeatable indicate a malfunction of RAM. In many cases, however, the problem is not a physical defect chip of dynamic memory, but in a bad or incorrect installation of memory modules in slots. Turn off the computer, check the module setting and try to start the PC again. If you again hear long repetitive beeps, then the memory chips will most likely have to be changed.

A slightly different meaning has long, infinitely repeated beeps in the BIOS from Phoenix. In the event that you are the owner of a computer with a similar BIOS and after starting the POST procedure, you hear the sounds of this kind, they mean the motherboard malfunction. This is a rather serious mistake, and the only thing you can try to do is to restart the computer again in the hope that the error disappears. If it does not help, you can try to verify the reliability of connecting the power cables that run from the system unit to the motherboard. If all your attempts to restore our own performance of the personal computer turned out to be unsuccessful, you will only have to replace the motherboard or attribute PC to the service center.

Consider what the speaker signals are, and what they are notified.
Speaker - Small Size Speaker, located on the base of the motherboard or less frequently displayed on the system unit body (connecting to the motherboard with two plus contacts - minus. The speaker signals about the operation (one short signal when turned on) - a malfunction (depending on which node is damaged. )

Consider signals and value - for example, the 3 most common systemsBIOS:Award; AMI; Phoenix.

Version Award BIOS.

Version Ami Bios.

PHOENIX versionBios.

BEEP codes are represented by a sequence of sound signals. For example, 1-1-2 means 1 beep, pause, 1 beep, pause, and 2 beeps.

Note! If there is no signal: there is no speaker; Eupported built-in speaker; Motherboat Defect; Failure in the BIOS system (try and repeat the launch).

Instead of pre-school

When observing one of the above faults, the view of the signals (except for a single short signal) seek help from the service center for repair and maintenance of computer equipment! Try to live, any attempts of self-repair, interference in faulty equipment can aggravate the problem.

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