The computer beeps constantly when turned on. Why is the system unit beeping? Causes and consequences

Over time, any technique fails, and the computer is certainly no exception. A user who has been working at a computer for several years knows that in the event of a hardware or software failure, 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 of Bios will help us. 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 Windows boots. If your computer refuses to boot, then this article will help determine which computer hardware is out of order.

After 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.

1. You need to turn on the computer and count how many beeps the speaker emits.
2. See your Bios version when you boot your computer. Look for an inscription, Bios version or something like that. Usually the inscription is located at the very top.
3. Find your BIOS version and number of beeps in the table.
4. 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 are short as well as long.

IBM BIOS

AMI BIOS

AST BIOS

Pheonix BIOS

A hyphen (-) means a pause.

Compaq BIOS

DELL BIOS

A hyphen (-) means a pause.

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 on the BIOS topic: "".

Many people already know that if the computer beeps when you turn it on, it means that it has malfunctions that are determined by the type of sound. In this article, we will discuss how to properly analyze such audio signals.

The beeps when the computer is turned on are the primary indicator of the computer's operation. Each time the PC is powered on, the BIOS tests the main systems and components of the computer - the so-called Power On Self Test function is launched.

If the test is successful, the system is working properly, then one short beep is emitted, and the system boots up normally. If there are malfunctions, problems in PC components, then the computer emits a series of beeps of various durations.

To understand what it means when the computer beeps when you turn it on, you need to find out which BIOS manufacturer's modification is installed on your PC.

Depending on the developer, the sound signals can take on different meanings, which will indicate the culprit of the malfunction.

To find out the name of the BIOS manufacturer, immediately after starting the computer, press the “ DEL"Or" F2”. After completing these steps, you will enter the BIOS menu. At the top of the screen is the name of the BIOS manufacturer.

Computer squeak values

The most common are two firms: Award and AMI... The table below shows frequently used beeps and their designations in these types of BIOS (as an example.)

Manufacturer Award BIOS

AMI BIOS manufacturer

Suppose you have the computer beeps when turned on and no image appears 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 repair to be carried out 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

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

In more detail about how and how to clean RAM contacts, see the article -.

Graphics card error

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

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

Power supply problems

1. 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.
2. 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

AMI BIOS signals

Essence of the problem: you turn on the computer, and a squeak is heard from the system unit

Solution to the problem:

1. You need to find out the manufacturer of your motherboard BIOS. The easiest option is to find the name of the BIOS manufacturer in the instructions for the motherboard. If you have not preserved the instructions, open the system unit, look at the motherboard model, go online through the computer of friends, relatives, neighbors and look for the BIOS manufacturer

2. If you nevertheless decide to open the system unit on your own, then all actions inside must be performed with the power off, having previously removed the electrostatic charge from yourself (before touching the parts inside the computer, touch the metal chassis of the case). Even after removing the electrostatic charge, try not to touch the pins of the microcircuits.

3. If you doubt your knowledge and ability to eliminate the malfunction yourself - contact the specialists

Below are the decoding of BIOS signals from the two most popular manufacturers - Award BIOS and AMI BIOS:

If there are no signals at all, you need to check the power supply, it may be faulty or not connected to the motherboard. You can try to clean it of dust, check the reliability of the power connector on the motherboard. If the above tips do not help, the power supply must be replaced or sent for repair.

Award BIOS:
- continuous continuous signal - the power supply is faulty;
- 1 short signal - no errors were found, the PC is operational;
- 1 short periodically repeating signal - problems with the power supply;
- 1 long periodically repeating signal - malfunction of the RAM (we try to pull the RAM module out of the slot and insert it again, if it does not help, the module needs to be replaced);
- 2 short beeps - minor errors were found (we check the reliability of fastening loops and cables in the motherboard connectors, set the default values \u200b\u200bin the BIOS (Load BIOS Defaults item);
- 3 long ones - the keyboard controller is faulty (we check the integrity of the keyboard cable and the quality of the connections, we check the keyboard on a known good computer, if it does not help, the motherboard needs to be repaired or replaced);
- 1 long, 1 short - RAM malfunction;

- 1 long, 3 short - keyboard malfunction;
- 1 long, 9 short - an error occurred while reading data from the BIOS microcircuit (the microcircuit must be flashed, if it does not help, the microcircuit must be replaced.

AMI BIOS:
- 1 short beep - no errors were found, the computer is operational;
- 2 short signals - RAM malfunction (we try to pull the RAM module out of the slot and insert it again, if it does not help, the module needs to be replaced);
- 3 short ones - error of the first 64 KB of main memory;
- 4 short - malfunction of the system timer (restart the computer, if it does not help - repair or replacement of the motherboard is needed);
- 5 short signals - central processor malfunction (restart the computer, if it does not help - the central processor needs repair or replacement);
- 6 short ones - keyboard controller malfunction (we check the integrity of the keyboard cable and the quality of the connections, check the keyboard on a known good computer, if it does not help, the motherboard needs to be repaired or replaced);
- 7 short - motherboard malfunction (restart the computer, if it does not help - repair or replacement of the motherboard is needed);
- 8 short - malfunction of the RAM of the video card (restart the computer, if it does not help - you need to repair or replace the video card);
- 9 short ones - an error when checking the checksum of the BIOS microcircuit (the microcircuit needs to be flashed, if it does not help, the microcircuit must be replaced.
- 10 short - cannot write to CMOS memory. Trying to reset the memory contents. To do this, turn off the computer, remove the network cable from the outlet. We are looking for a switch next to the CMOS memory battery and set it to the Clear CMOS position. We press (!!! with the network cable disconnected !!!) - the computer power button. We set the switch to its original position. If your motherboard does not have a switch, you need to remove the battery for 30 minutes or more. Set the BIOS settings to their default values \u200b\u200b(Load BIOS Defaults). If it does not help, you need to replace the BIOS chip;
- 11 short ones - RAM failure;
- 1 long, 2 short signals - video card malfunction (we try to pull out the video card and reinsert it, check the integrity and quality of the monitor cable connection, if it does not help, we need to replace the video card);
- 1 long, 3 short - video card malfunction;
- 1 long, 8 short - video card malfunction.

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 housing cover reveals a small round black speaker that is usually attached to the housing itself. It is this speaker that beeps, 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 is good when symbols or words are displayed on the screen 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:

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

How to find out the BIOS version?

To determine the malfunction, be sure 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: 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.

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.

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, CPU replacement is indicated.

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.

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

Other BIOS systems

The above are 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.

Determining the 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:

1. You need to check if external devices are correctly connected to the computer: printer, webcam, mouse, etc.
2. 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.
3. Clean the motherboard from dust. In no case should you do this with a damp, let alone wet cloth.
4. Examine the motherboard and look for swollen capacitors. If there is one, then it must be replaced (unsolder and solder the same).
5. Check the board for burning.
6. You can also try removing all the components and reinstalling 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 allow us 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 pass 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, because of 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, one should not hope that the computer will stand up and turn on without problems after a while.

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. The 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 a lot of time, and sometimes money, as in the process of self-repair, users often exacerbate the situation due to their technical illiteracy.