Any technique breaks, but with a computer this happens more often. Many users are faced with a situation in which the computer beeps and does not turn on. The questions immediately arise: what happened and how to fix it? We’ll talk about this.
What can squeak inside?
The squeak of a computer comes from the speaker, and its main purpose is to squeak. It informs the user about any hardware or software system error (most often hardware). Having removed the case cover, you can notice a small round black speaker, which is usually mounted on the case itself. It is this speaker that emits a squeak, informing the user about possible software or hardware errors.
Why does the computer squeak and not turn on at the same time?
If everything is in order with the computer, then when you turn it on you can hear only one weak 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’s good when the screen displays symbols or words by which you can understand the problem and determine the nature of the malfunction. In the worst case, the monitor blinks and the computer does not turn on at all. A characteristic squeak is always present. With its help, the system tries to explain to us at what level the failure occurs.
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:
- Find out the BIOS version of the computer.
- Calculate how many squeaks a speaker emits.
- Find on the Internet (from your phone, for example) a fault table for your BIOS and check it, which means a certain number of squeaks.
- Repair the malfunction.
How to find out the BIOS version?
To determine the malfunction, you must definitely check the BIOS version. There are several ways to do this. The easiest way is to open the operating manual for the motherboard, but if it is not there, you can simply remove the housing cover and find the BIOS-labeled circuit on the motherboard. The version will also be indicated there.
If you turn on the computer for three to four seconds, you can see any text 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 the following: Phoenix, Award, AMI, but there are others.
So, if the computer beeps with short signals and does not turn on, and we already know the BIOS version, then it is easy to find out the cause of the problem. The following signals are characteristic of the AWARD BIOS.
Single short beep
No problems at work
There are loading errors. Perhaps the loops are loose. These are minor errors that can be fixed even programmatically. Do not worry
Three long beeps
There are any malfunctions in the keyboard controller
Two signals of different lengths
The problem with RAM. At a minimum, you can remove the RAM strips, wipe their contacts with alcohol and put them in place. If the signals have not disappeared, then it is worth trying to replace both or one of the bars and try to boot the system again. So you can identify the faulty RAM module and replace it
One long squeak, two short squeaks
Possible damage to the graphics adapter. Disconnect the system unit from the outlet, remove the video card, clean the contacts and reconnect it. If the signals remain, then the component will have to be repaired or returned to the seller under warranty
Long, three short
One long beep, nine short beeps
Read ROM problem
Repeating signal with variable frequencies (high and low)
Damage to the power supply. You can try to clean it of dust, but if the squeak remains, then it will have to be carried in for repair or completely replaced
The table lists the main signals that occur when using motherboards with the BIOS version of AWARD.
If the computer beeps when it starts up and does not turn on with the BIOS version of AMI, then the nature of the malfunction can be judged by the following signals.
System boot is working fine, everything is working properly
2 long, 1 short
Possible problems with the RAM bar
Again, a problem with RAM. Any of its components are not working properly. At a minimum, you can again get the RAM strips, wipe their contacts with alcohol (degrease) and put them back. If there are several brackets, then you need to try to turn on the computer with the installation of one bracket first, and then with another. This will identify the defective module.
The timer in the system is not working properly.
The problem with the processor. Nothing to do here. It is necessary to carry the computer for repair. CPU may need to be replaced
The problem is in the controller.
7 short beeps
The problem with video memory
Malfunction in BIOS firmware
Unable to read CMOS memory. Maybe her work is wrong
There is a problem with the cache located on the motherboard.
Long, 2 short
Mono-CGA video system malfunction
Long, 3 short
EGA-VGA video system malfunction
Long, 8 short
Monitor connector is loose or burnt out
Power supply failure
In some cases, there are no sounds at all and when you turn on the computer a black screen. What to do in this case? It is worth checking the central processor. It is likely that one pin on the chip was bent. In this case, CPU replacement is shown.
Usually, if a beep sounds, but the computer does not turn on, the reasons are typical for motherboards with Phoenix BIOS. But here the signals are a little atypical, so they need to be disassembled using signal codes. For example, a signal 1-1-2 will mean the following: signal. pause. signal. pause. two signals.
Incorrect BIOS checksum. Most likely, you will need to update the firmware of this chip
Serious damage to the motherboard. You can’t do anything on your own, you have to carry it in for repair or replace it
The problem with the DMA controller
Violation of RAM
Another RAM error. In particular, such a code indicates that it was not possible to read the first 64 KB of RAM. It is necessary to remove the slats gradually and try to turn on the computer
An error occurred while preparing to launch the motherboard. Board replacement is most often required.
RAM problem again
The system timer is not working properly. Most often, the problem is solved in the workshop, however, a replacement board may be required.
Failure on input / output ports. External devices may not work properly
Error determining DMA channels
Unable to determine keyboard controller
The inability to determine the BIOS of the video card
The processor is malfunctioning. CPU may need to be replaced
Unable to determine math processor
Malfunctioning RAM slats
The keyboard controller is not working properly
Incorrect operation of the first and second timers
Unable to determine serial port
Long beeps do not stop
Maternal most likely burned out
High to Low Frequency Transition Sound
Perhaps the capacitors on the video card were swollen. They need to be checked and replaced.
The computer continuously beeps and does not turn on
It indicates a malfunction of the processor cooler. It is advisable to look inside the system unit and see if the cooler rotates
Now it’s clear that if the computer squeaks and does not turn on when turned on, then the problem can be hidden anywhere from those listed above.
Other BIOS systems
Above are signal error codes for only three BIOS systems, although there are more. In any case, in the manual you can find these codes specifically for your motherboard. Check her out. However, there are ways to determine the problem without resorting to the BIOS.
If the computer does not turn on, the light blinks and there is a characteristic squeak, this does not mean that a serious breakdown has occurred with the computer. First of all, you need to try to resort to simple methods of troubleshooting:
- You need to check whether external devices are correctly connected to the computer: printer, webcam, mouse, etc.
- Turn off the power and tighten all the connectors inside the system unit. It may turn out that some power connector is not tight 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 press the connector harder.
- Clean the motherboard from dust. In no case should you do this with a damp, much less wet rag.
- Examine the motherboard and look for swollen capacitors. If there is one, then it must be replaced (solder and solder the same).
- Check the board for burning.
- You can also try to remove all components and reinstall them.
For some users who do not turn on the computer, the reasons are generally unknown. Even specialists cannot determine the malfunction. In this case, you just have to change the board. There are no certain statistics that would allow us to understand which particular module fails most often. Each case is individual, so in the event of a breakdown, most likely, you will have to charge the fee for repair.
Will it go by itself?
In extremely rare cases, users solve the problem by itself, and after a certain downtime, the computer starts working normally. This can happen if there was insufficient voltage in the network, because of which the power supply could not provide all the components with energy of sufficient power. This happens very rarely, but it is also impossible to exclude this option. However, you should not hope that the computer will stand still and after some time it will turn on without problems.
So, we found out why the computer squeaks and does not turn on. Unfortunately, if this happens, it is extremely rare to independently solve the problem. The motherboard and computer components in general are quite complex devices, so in case of breakdown it is advisable to seek professional help. This will save a lot of time, and sometimes money, because in the process of self-repair, users often aggravate the situation because of their technical illiteracy.