The computer emits one long beep. Bios sound signals when the PC is turned on. What do the BIOS beeps mean?

Remove dust from it.
Check that the power strip is securely attached to the motherboard.
If it does not help, replacement or repair of the power supply unit is required.
2. Continuous signal - power supply is faulty. See item 1.
3. 1 short signal - no errors were found, the PC is working properly.
4. 1 short repetitive signal - problems with the power supply. See item 1.
5.1 long repetitive signal - malfunction
random access memory... Try removing the RAM module from the slot and reinserting it. If that doesn't help, replace it.
6. 2 short beeps - minor errors detected.
Check that the cables and cables are securely fastened to the motherboard connectors. Set the BIOS to default values (Load BIOS Defaults).
7. 3 long beeps - keyboard controller malfunction.
Check the integrity of the keyboard cable and the quality of the connections. Test the keyboard on a known good PC. If it does not help, you will need to repair or replace the motherboard.
8. 1 long and 1 short signals - a malfunction of the RAM. See item 5.
9. 1 long and 2 short signals - video card malfunction.

10. 1 long and 3 short beeps - keyboard malfunction. See item 7.
11. 1 long and 9 short beeps - error while reading data from the BIOS chip.

Basic functions: reading memory, viewing graphics or sending data to HDD... Step 2: Remove dust from the ventilation areas of your computer. If your computer is new and hasn't been used yet, you can skip this step. Over time, dust can accumulate in the ventilation slots of your computer. Before troubleshooting with system startup codes, remove any dust that may accumulate. Wear eye protection and use a compressed air spray or vacuum cleaner to remove dust from the ventilation slots.

1. There are no signals - the power supply unit (PSU) is faulty or not connected to the motherboard.
Remove dust from it. Check that the power strip is securely attached to the motherboard. If it does not help, replacement or repair of the power supply unit is required.
2. 1 short signal - no errors were found, the PC is working properly.
3. 2 short signals - malfunction of the RAM.
Try removing the RAM module from the slot and reinserting it. If that doesn't help, replace it.
4. 3 short signals - error of the first 64 KB of main memory. See item 3.
5. 4 short signals - malfunction of the system timer.

6. 5 short signals - central processor malfunction.
Reboot your PC. If it does not help, you will need to replace the processor.
7. 6 short signals - keyboard controller malfunction.
Check the keyboard cable for integrity and tightness. Test the keyboard on a known good PC. If it does not help, you will need to repair or replace the motherboard.
8. 7 short signals - motherboard malfunction.
Reboot your PC. If it does not help, you will need to repair or replace the motherboard.
9. 8 short signals - malfunction of the video card RAM.
Reboot your PC. If it does not help, replace the video card.
10. 9 short beeps - an error while checking the checksum of the BIOS chip.
Re-writing (flashing) of the microcircuit is required. If it does not help, replace the microcircuit.
11. 10 short beeps - it is impossible to write to CMOS-memory.
Reset the contents of the memory (to do this, turn off the PC, unplug the power cord. Find the switch next to the CMOS-memory battery, set it to the Clear CMOS... Press - with disabled network cable! - PC power button. Set the switch to its original position. If there is no switch on your motherboard, remove the battery for half an hour). Set the BIOS to default values (Load BIOS Defaults). If it does not help, replace the microcircuit.
12. 11 short signals - malfunction of the RAM. See item 3.
13. 1 long and 2 short signals - video card malfunction.
It is recommended to remove the video card and reinsert it. Check the integrity and quality of the monitor cable connection. If it does not help, replace the video card.
14. 1 long and 3 short signals - video card malfunction. See item 13.
15. 1 long and 8 short signals - video card malfunction. See item 13.

First make sure the speaker is properly connected, then check the power cord. In case everything is in order and the configuration of the helmets and jumpers also changes the board to a defective one. This error is in most cases related to current malfunctions. This signal indicates that everything is correct.

If we see the image, we will receive an error message. If the problem persists, we will change the plate. Same as when giving two beeps. The same thing happens with two and three beeps. In this case, it may also be an error in the system clock.

Illustration: Suction of dust from ventilation slots. Follow these steps to write down the error conditions on a piece of paper. Look at the power button on the computer case and notice its condition. Write down what you heard on a piece of paper to remember the nature of the error for the next steps. Read the beep descriptions in this support document to find the hardware component that is having the problem. You can use this information in the next troubleshooting step. If your computer needs repair, you can use this code and this information when speaking with a service representative.

Hear your computer with loud beeps.
Example: two long beeps followed by a short beep.

Download codes or messages have changed over time.

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. Faulty motherboard.
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. Similar to the previous one.
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.
2-x-x. Problems with the first 64k memory (x - from 1 to 4)
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. May be caused by a device using this port.
4-4-2. An error occurred while testing the parallel port. See above.
4-4-3. An error occurred while testing the math coprocessor.

The keyboard controller is broken, you need to change the boards. The processor could not be detected or failed. We are changing or revising the settings. Video card not found or not working. We are changing the card slot or checking the video memory. If the problem persists, we will have to change the wafer, as this chip is always welded.

Most of the beeps are accompanied by an error message. Power failure. Check connections and power supply. Change memory bank and check bus jumpers. There is no picture signal, it is that our video card is damaged, we will try to punch it in another slot or try another graphic card.

Older computers use a set of beeps. These codes are not valid for older models. He explains the loading of the computer and the various possible reasons that our computer emits certain beeps when it is turned on. What happens from the moment we give the power button until we see the operating system boot up?

Then he transfers the storage devices. The microprocessor resets all counters and registers to. In this case, beeps to indicate the status of the computer. Turns on LED keypads and generates inputs. Boot Boot Control gives control operating system.

Attention!!!

1. If you do not feel sufficiently prepared, in case of problems - contact the specialists.
2. Perform all manipulations with the "hardware" with the power off!
3. Before repairing your PC, you must discharge the electrostatic charge (for example, by touching the nickel-plated surface of the faucet with both hands).
4. Even after removing the electrostatic charge, try, if possible, not to touch the pins of the central microprocessor, video adapter processor and other microcircuits.
5. Do not clean the oxidized gold-plated contacts of the video card and RAM modules with abrasive materials! For these purposes, you can use a rubber band like "eraser".
6. Remember that most of the "malfunctions" of the PC are "healed" by a simple reboot!
7. If you do not know which BIOS manufacturer is installed on your PC, look at the top line on the monitor screen during boot, for example, for Award there will be a line like Award Modular BIOS, for AMI - American Megatrends, Inc. The BIOS version must also be indicated in the passport of your PC.

Whenever we turn it on according to how the motherboard should communicate the state of the system, a beep sounds. No sound signal: there is no power supply, it can also happen that the "loudspeaker" that emits sound signals does not work.

Continuous tone: power failure. Constant short tones: the motherboard is damaged, that is, it is broken, this is the worst thing that can happen to us. This usually happens on old motherboards, people usually pull them out. Long tone and two short ones: Error on the graphics card. The port may fail, so there is no need to change the port, but it could also be that the graphics card is damaged.

What do the beeps mean when I turn on my computer?

When you turn on a working PC, after a few seconds, one short signal is heard, which should delight the ear of any user ...

Remove dust from it.
Check that the power strip is securely attached to the motherboard.
If it does not help, replacement or repair of the power supply unit is required.
2. Continuous signal - power supply is faulty. See item 1.
3. 1 short signal - no errors were found, the PC is working properly.
4. 1 short repetitive signal - problems with the power supply. See item 1.
5. 1 long repeating signal - malfunction of the RAM.

6. 2 short beeps - minor errors detected.
Check that the cables and cables are securely fastened to the motherboard connectors. Set the BIOS to default values (Load BIOS Defaults).
7. 3 long beeps - keyboard controller malfunction.
Check the integrity of the keyboard cable and the quality of the connections. Test the keyboard on a known good PC. If it does not help, you will need to repair or replace the motherboard.
8. 1 long and 1 short signals - a malfunction of the RAM. See item 5.
9. 1 long and 2 short signals - video card malfunction.

10. 1 long and 3 short beeps - keyboard malfunction. See item 7.
11. 1 long and 9 short beeps - error while reading data from the BIOS chip.

Two long tones and one short tone: an error in the synchronization of images. Of course, the graph problem. Two short tones: memory parity error. This is especially true on older computers, which have two modules written in two modules. This means that one of the modules is out of order, or that we do not have an even number of memory modules.

What do the BIOS beeps mean?

Four short tones: timer or counter error. Five short tones: this means the processor or video card is locked. Often occurs when overheated. Six short tones: keyboard error. If it still doesn't work, this is the keyboard receive port. We often hear many of these sounds for things we don't understand, but then continue to function normally. In this case, the problem of detecting errors or the type of scanning that will make us light up the computer.

1. There are no signals - the power supply unit (PSU) is faulty or not connected to the motherboard.
Remove dust from it. Check that the power strip is securely attached to the motherboard. If it does not help, replacement or repair of the power supply unit is required.
2. 1 short signal - no errors were found, the PC is working properly.
3. 2 short signals - malfunction of the RAM.
Try removing the RAM module from the slot and reinserting it. If that doesn't help, replace it.
4. 3 short signals - error of the first 64 KB of main memory. See item 3.
5. 4 short signals - malfunction of the system timer.

6. 5 short signals - central processor malfunction.
Reboot your PC. If it does not help, you will need to replace the processor.
7. 6 short signals - keyboard controller malfunction.
Check the keyboard cable for integrity and tightness. Test the keyboard on a known good PC. If it does not help, you will need to repair or replace the motherboard.
8. 7 short signals - motherboard malfunction.
Reboot your PC. If it does not help, you will need to repair or replace the motherboard.
9. 8 short signals - malfunction of the video card RAM.
Reboot your PC. If it does not help, replace the video card.
10. 9 short beeps - an error while checking the checksum of the BIOS chip.
Re-writing (flashing) of the microcircuit is required. If it does not help, replace the microcircuit.
11. 10 short beeps - it is impossible to write to CMOS-memory.
Reset the contents of the memory (to do this, turn off the PC, unplug the network cable. Find the switch next to the CMOS-memory battery, set it to the Clear CMOS position. Press - with the network cable disconnected! - the power button of the PC. Set the switch to its original position. If there is no switch on your motherboard, remove the battery for half an hour). Set the BIOS to default values (Load BIOS Defaults). If it does not help, replace the microcircuit.
12. 11 short signals - malfunction of the RAM. See item 3.
13. 1 long and 2 short signals - video card malfunction.
It is recommended to remove the video card and reinsert it. Check the integrity and quality of the monitor cable connection. If it does not help, replace the video card.
14. 1 long and 3 short signals - video card malfunction. See item 13.
15. 1 long and 8 short signals - video card malfunction. See item 13.

Hear your computer with loud beeps.
Example: two long beeps followed by a short beep.

Download codes or messages have changed over time.

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. Similar to the previous one.
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.
2-x-x. Problems with the first 64k memory (x - from 1 to 4)
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. May be caused by a device using this port.
4-4-2. An error occurred while testing the parallel port. See above.
4-4-3. An error occurred while testing the math coprocessor.

Older computers use a set of beeps. These codes are not valid for older models. It explains how the computer boots up and the various possible reasons why our computer emits certain beeps when it is turned on. What happens from the moment we give the power button until we see the operating system boot up?

Attention!!!

If this message appears on the screen: "No video card", this error only applies to motherboards with integrated video cards. There is an error in the graphics card, we will try to disable it and we will punch a new one in any free slot or we will change the motherboard.

If this message appears on the screen "No monitor connected" Same as the previous one. Error message. "Video link error." Failed to sync images. If it persists, our graphics card or motherboard is broken. We see this error on the screen: "Parity error".