The laptop does not turn on and beeps continuously. Computer beeps - BIOS signals
Let's look at the reasons why the laptop beeps several times or continuously when turned on.
The nature of the malfunction may vary, as can the sound itself. Problems may lie in a software glitch or faulty elements. Service center specialists will help you figure out why the laptop beeps continuously when you turn it on or this happens several times. Such delicate and sometimes very complex work should be entrusted exclusively to professionals.
The laptop beeps when turned on: what are the reasons?
When turned on, the device should make sounds - this is a single signal, which indicates the serviceability and readiness of the equipment. If the situation is different - the laptop beeps several times or emits a continuous beep, refuses to boot or turn on, the reason is some kind of malfunction.
The speaker always acts as the sound source. It, located on the motherboard, becomes a serviceability/failure indicator of the laptop. To diagnose the cause of the malfunction, when the laptop beeps continuously when turned on and does not load, technicians use a special table. But the most common causes of malfunction are:
- The keyboard is stuck or malfunctioning.
- Overheating of important internal components, after which the cooling system of the equipment fails.
- Power supply error.
- Incorrect BIOS settings.
- Problems related to the operation and serviceability of boards, including video cards.
For diagnostics, technicians use a special table of sound signals. This is a registry that is individual for each BIOS version, the series of which the wizard recognizes based on the laptop model.
To correctly determine the cause of the malfunction, the technician turns on the laptop and counts the frequency, and also analyzes the nature of the squeak. After such calculations, you can find in the table the corresponding value and the probable reason for the laptop’s incorrect operation. This is a task for professionals who have at their disposal not only the best tools and equipment, but also significant work experience, information literature, and knowledge.
Table of "squeaks" and decoding
Depending on the BIOS manufacturer, the table below deciphers the squeak frequency of the laptop/computer speaker
AMI BIOS
| Decoding BIOS signals | |
|---|---|
| 1 short | No errors found, PC is working fine |
| 2 short | RAM parity error or you forgot to turn off the scanner or printer |
| 3 short | Error in the first 64 KB of RAM |
| 4 short | System timer malfunction. Set the time in BIOS or WINDOWS system |
| 5 short | Processor problems |
| 6 short | Keyboard controller initialization error |
| 7 short | Problems with the motherboard |
| 8 short | Video card memory error |
| 9 short | BIOS checksum is incorrect |
| 10 short | CMOS write error |
| 11 short | System board cache error |
| 1 long, 1 short | Problems with the power supply |
| 1 long, 2 short | Video card error (Mono-CGA) |
| 1 long, 3 short | Video card error (EGA-VGA) |
| 1 long, 4 short | No video card |
| 1 long, 8 short | Problems with the video card or the monitor is not connected |
| 3 long | RAM - read/write test completed with error. Reinstall memory or replace with a working module. |
| Missing and blank screen | The processor is faulty. The contact leg of the processor may be bent (broken). |
| Continuous beep | The power supply is faulty or the computer is overheating |
Award BIOS
| Sequence of beeps | Decoding BIOS signals |
|---|---|
| 1 short | Successful POST |
| 2 short | Minor errors found. A sentence appears on the monitor screen enter the CMOS Setup Utility program and correct the situation. |
| 3 long | Keyboard controller error |
| 1 short, 1 long | Random access memory (RAM) error |
| 1 long, 2 short | Video card error |
| 1 long, 3 short | Video memory error |
| 1 long, 9 short | Error reading from ROM |
| Repeating short | Problems with the power supply; Problems with RAM. |
| Repeating long | RAM problems |
| Repeated high-low frequency | Processor problems |
| Continuous | Problems with the power supply |
Phoenix BIOS
1-1-2 means 1 beep, pause, 1 beep, pause, and 2 beeps.
| Sequence of beeps | Decoding BIOS signals |
|---|---|
| 1-1-2 | Error during processor test. The processor is faulty. Replace the processor |
| 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 contents. |
| 1-2-1 | |
| 1-2-2 or 1-2-3 | DMA controller initialization error. |
| 1-3-1 | Error in initializing the RAM regeneration circuit. |
| 1-3-3 or 1-3-4 | Error initializing 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 bit 0 (in hexadecimal) of the first 64 KB of RAM |
| 2-1-2 | An error was detected when reading/writing the 1st bit (in hexadecimal) of the first 64 KB of RAM |
| 2-1-3 | An error was detected when reading/writing the 2nd bit (in hexadecimal) of the first 64 KB of RAM |
| 2-1-4 | An error was detected when reading/writing the 3rd bit (in hexadecimal) of the first 64 KB of RAM |
| 2-2-1 | An error was detected while reading/writing the 4th bit (in hexadecimal) of the first 64 KB of RAM |
| 2-2-2 | An error was detected when reading/writing the 5th bit (in hexadecimal) of the first 64 KB of RAM |
| 2-2-3 | An error was detected when reading/writing the 6th bit (in hexadecimal) of the first 64 KB of RAM |
| 2-2-4 | An error was detected when reading/writing the 7th bit (in hexadecimal) of the first 64 KB of RAM |
| 2-3-1 | An error was detected while reading/writing the 8th bit (in hexadecimal) of the first 64 KB of RAM |
| 2-3-2 | An error was detected when reading/writing the 9th bit (in hexadecimal) of the first 64 KB of RAM |
| 2-3-3 | An error was detected when reading/writing the 10th bit (in hexadecimal) of the first 64 KB of RAM |
| 2-3-4 | An error was detected when reading/writing the 11th bit (in hexadecimal) of the first 64 KB of RAM |
| 2-4-1 | An error was detected while reading/writing the 12th bit (in hexadecimal) of the first 64 KB of RAM |
| 2-4-2 | An error was detected when reading/writing the 13th bit (in hexadecimal) of the first 64 KB of RAM |
| 2-4-3 | An error was detected when reading/writing the 14th bit (in hexadecimal) of the first 64 KB of RAM |
| 2-4-4 | An error was detected when reading/writing the 15th bit (in hexadecimal) of the first 64 KB of RAM |
| 3-1-1 | Error initializing the second DMA channel. |
| 3-1-2 or 3-1-4 | Error initializing the first DMA channel. |
| 3-2-4 | |
| 3-3-4 | Error initializing video memory. |
| 3-4-1 | Serious problems arose when trying to access the monitor. |
| 3-4-2 | The video card BIOS cannot be initialized. |
| 4-2-1 | Error initializing the system timer. |
| 4-2-2 | Testing is complete. |
| 4-2-3 | Keyboard controller initialization error. |
| 4-2-4 | Critical error when the CPU enters protected mode. |
| 4-3-1 | Error initializing RAM. |
| 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 | Error initializing math coprocessor. |
| Long, continuous beeps | The motherboard is faulty. |
| Siren sound from high to low frequency | The video card is faulty, check the electrolytic capacitors for leaks or replace everything with new ones that are known to be good. |
| Continuous signal | The CPU cooler is not connected (faulty). |
Compaq BIOS
DELL BIOS
AST BIOS
| Sequence of beeps | Decoding BIOS signals |
|---|---|
| 1 short | Error when checking processor registers. Processor failure |
| 2 short | Keyboard controller buffer error. Keyboard controller malfunction. |
| 3 short | Keyboard controller reset error. The keyboard controller or system board is faulty. |
| 4 short | Keyboard communication error. |
| 5 short | Keyboard error. |
| 6 short | System board error. |
| 9 short | BIOS ROM checksum mismatch. The BIOS ROM chip is faulty. |
| 10 short | System timer error. The system timer chip is faulty. |
| 11 short | Chipset error. |
| 12 short | Power management register error in non-volatile memory. |
| 1 long | DMA controller error 0. The channel 0 DMA controller chip is faulty. |
| 1 long, 1 short | DMA controller error 1. The channel 1 DMA controller chip is faulty. |
| 1 long, 2 short | Frame retrace suppression error. The video adapter may be faulty. |
| 1 long, 3 short | Error in video memory. The memory of the video adapter is faulty. |
| 1 long, 4 short | Video adapter error. The video adapter is faulty. |
| 1 long, 5 short | Memory error 64K. |
| 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. |
IBM BIOS
| Sequence of beeps | Decoding BIOS signals |
|---|---|
| 1 short | Successful POST |
| 1 beep and blank screen | Video system is faulty |
| 2 short | Monitor not connected |
| 3 long | Motherboard faulty (keyboard controller error) |
| 1 long, 1 short | Motherboard is faulty |
| 1 long, 2 short | Video system faulty (Mono/CGA) |
| 1 long, 3 short | Video system (EGA/VGA) is faulty |
| Repeating short | Malfunctions related to the power supply or motherboard |
| Continuous | Problems with the power supply or motherboard |
| Absent | The power supply, motherboard, or speaker is faulty |
If your laptop beeps when you turn it on, the reasons for this may be different. Let's try to figure them out. Computer equipment is often subject to various breakdowns. The fact is that a laptop consists of a large number of subsystems that are interconnected, but their elements are not super strong and durable.
If the laptop does not boot, it is important to determine the reason for this situation. Equipment developers have provided for this. A special mechanism was created to determine the cause of the breakdown and localize it. It consists precisely in special signals emitted by the computer. So, if you hear any sounds from the laptop, this is good news, indicating that the device has not completely failed. If the laptop doesn't turn on, it's too early to panic. Almost any breakdown can be repaired. Certain faults can be fixed on your own, while others will require the assistance of a professional.
If your laptop beeps when you turn it on, the most common reason for this is the keys sticking. It is caused by clogging or spilled liquid. As a result, the contacts close. It can be considered a good option if the moisture remains exclusively on the keyboard, without penetrating into the case. In the latter option, the problems that arise may be much more serious.
If the laptop does not boot, the reason for this may lie in the cooling system. Its clogging with debris or dust, as well as mechanical damage caused by shocks when the device is dropped, cause overheating of the central processor. If the cooling system is used to dissipate heat from the graphics card, it can also become unusable.
If your laptop beeps when you turn it on, the reason for this may also be due to damage to the RAM. As a rule, in such cases we are talking about a breakdown in contact between the RAM and the motherboard. Less common causes of extraneous sounds when turning on include incorrect settings in the BIOS or failure of the motherboard.
If your laptop beeps when you turn it on, there may be several reasons for this. The sound comes from a small tweeter. It is located on the motherboard. He is called the speaker. The device looks like a small barrel. Its main purpose is to signal faults. The sound produced contains information describing the nature of the breakdown. If you know the BIOS manufacturer, and also determine the squeak tone and duration, it is easy to find out which component needs repair. To find out BIOS information, you can use the documents that came with the device.
Often, in addition to the sound signal, the screen on the laptop also does not work. We should talk about this in more detail. First of all, we check the power settings while running on battery and mains power. Set the screen brightness. If the screen on the laptop does not work, we also check whether it is not active in all positions of the lid. The fact is that if the matrix cable is damaged, the display can display information only under certain conditions. In particular, this concerns the position of the lid. Also, if a black screen appears on your laptop, you should connect it to an external monitor. We check whether the image is displayed on it. If this is the case, most likely the cable or matrix is faulty. If there is no image, the most likely problem is the hardware, primarily the video card. When turned on, you may hear the operating system loading. In this case, the fault definitely lies in the video card. When it is obvious that there is no boot process, the indicator responsible for the operation of the hard drive does not respond, the problem is in other components. The problem may also be with the power button. She is able to stop responding to pressure. This is usually caused by contamination.
If you can only see a black screen on your laptop, but you can hear the operating system loading, you should take a closer look at the display and shine a lamp on it. If you can see the image, but there is no backlight, it means the lamp or inverter is faulty. These elements are responsible for constant illumination of the screen. If there is a breakdown in the inverter, it can be either repaired or replaced. It all depends on the severity of the breakdown. The backlight lamp cannot be restored, only replaced. If the display turns black on the sides and shows almost nothing, most likely the reason lies in the failure of the laptop hardware. 60% of cases are a video chip failure. It occurs due to overheating. 10% - lack of contact between the power supply and memory module. In this case, a thorough check of the device is necessary. In 10% of cases the south bridge fails. Another 20% are problems of a different kind. To find and eliminate them, you need to diagnose the device. Most often, the screen matrix remains intact. Its damage is possible due to mechanical damage or liquid getting on the screen.
We've sorted out the display, and now let's get back to the sounds made by the laptop. Each signal carries information about the cause of the malfunction. Sound decoding may vary depending on the BIOS manufacturer. Let's look at them in order. The sequence of signals will be indicated in quotes. Let's start with devices from DELL. The “1-2” signal indicates a malfunction in the video card. The “1-2-2-3” sound indicates an error in the BIOS ROM. If you hear the combination "1-3-1-1", the problem is with the DRAM update. If there is a keyboard error, the signal “1-3-1-3” sounds. The code "1-3-3-1" indicates a memory error. Sound signals such as “1-3-4-1”, “1-3-4-3” and “1-4-1-1” indicate various failures, but they are all associated with problems in RAM. Now let's discuss AMI BIOS. 1 short signal indicates that there are no errors and the laptop is in good condition. 3 long beeps refer to RAM and indicate that the read and write test has completed with errors detected. The memory element needs to be reset. 1 long and 1 short signal indicates power problems. If the laptop beeps 8 times when you turn it on, there is a video card memory error. If you hear 1 long beep and 8 short beeps, the monitor may not be connected. Also in this case we may be talking about problems with the video card. 10 short beeps indicate a CMOS write error. Continuous sound may be caused by a power failure. The processor may also overheat. 1 long sound in combination with 4 short ones indicates the absence of a video card. If there is no signal at all, most likely it is a processor malfunction. 1 long sound and 3 short sounds indicate a video card error. The problem relates to the EGA-VGA system. 2 short beeps most often indicate a RAM parity error. A similar sound may occur if the printer or scanner is not turned off. 4 short beeps indicate a system timer malfunction. In this case, you need to replace the motherboard. 11 short beeps indicate a cache error. It is located on the motherboard. 1 long signal in combination with 2 short ones indicates a video card error. We are talking about a Mono-CGA failure.
Details Category: Computers, Software Published 05/21/2014 12:47So, our dear friends. From this article you will learn why a laptop can beep, ring, and also why it can turn off after beeping.
Let's start with the fact that there are several reasons why a laptop can emit piercing squeaks, and we will look at them a little lower on the page.
If your laptop beeps inside Windows, then most often this turns out to be a signal of low battery charging (less than 5%) it is recommended to check this and connect the charger. If it is not there, the laptop will simply turn off with squeaks after some time.
There are also cases when the laptop beeps on its own in Windows due to the fact that the cooling system (fan) is not connected to the laptop board or its plug has fallen out of the socket, then the laptop warns the user about rapid overheating without cooling and soon the laptop itself will turn off. So if you removed the bottom cover of your laptop the day before, you most likely forgot to reconnect the fan.
The last and most unpleasant thing is when the laptop starts beeping immediately after turning it on (not in Windows). This is actually a bad signal, which usually notifies the user of some kind of hardware problem in the laptop. If this happens to you, don’t panic, try removing the battery and try turning on the laptop again. Analyze whether you were doing anything strange before it happened to find the source of the problem and localize it. Perhaps this behavior of a laptop can occur not only with a faulty processor, video card, but also with a computer disk. The cause can also be a BIOS malfunction. It is recommended to remove all connected devices from the laptop and reset the Bios.
Did you know that the sounds that a laptop makes in certain cases signal the user about various kinds of problems? For example, if The laptop beeps constantly while working, this may indicate that the system has diagnosed a problem that it cannot solve on its own. Perhaps one or more keys are stuck, or one of the contacts is shorted after getting wet. If the first problem is easily fixable, the second one can cause serious damage. This is why laptop beeping must be taken seriously.
Laptop beeps when booting
When loading, the laptop should make sounds one way or another. But we can easily decipher the nature of these sounds if we know what each sound signal means. So, Laptop beeps when booting up once, with a short sound - this means that no errors were detected in the system.
Two short beeps indicate that a RAM parity error has occurred, or you have not turned off the scanner or printer. Three short beeps – an error in the first 65 KB of RAM. Four beeps (short) indicate the need to replace the motherboard, as well as that the system timer is faulty. Five signals - faulty processor. Six signals indicate an error in initializing the keyboard controller. Seven - the motherboard is faulty. Eight signals - problems with the video card.
The laptop can send not only short, but also long signals, and also combine long and short ones. For example, one long and one short beep indicates a power problem. In this case, a situation may arise where one long and two or three short signals indicate video card errors, and one long and four short signals indicate its complete absence. Three long beeps tell us about problems with RAM. But a continuous beep indicates a power failure or overheating of the laptop processor.
Now you can diagnose the breakdown yourself if your The laptop beeps and won't turn on. Even if the radiator is clogged with dust, the fan has stopped, or the thermal paste has dried out, the laptop can overheat and notify you of this with a long continuous squeak. This problem also happens after a fall or blow. On rare occasions, she talks about a manufacturing defect.
If the video card, which is based on the motherboard in the form of a small chip and is cooled by the same system as the processor, is overheated, the laptop can give you the same signals. By the way, if the RAM fails or the motherboard simply “does not see” it, the computer will give you a beep.
Now you understand that a laptop beeping when turned on can mean a complex of reasons and problems - from problems with power controllers to a malfunction of the motherboard and video card.
Even if the settings are incorrect, your laptop will beep. What module exactly causes this unpleasant squeak?
A small element located on the motherboard is called a speaker and is a small tweeter. It is he who gives sound signals when certain malfunctions are diagnosed in the laptop.
One way or another, having determined the nature of the laptop's squeak, you can make a quick decision - continue to use the laptop or take it to a service center for diagnostics and repair. Be sure to find documents for the laptop before contacting the service center - warranty card and service book, if available. Thanks to this, you will be able to repair your laptop under warranty if the breakdown turns out to be a manufacturing defect.