What happens when the computer boots up with a black screen, and why does the computer turn on a bla

1) The display is powered off, or the display data cable is in poor contact;

2) There is no power supply to the motherboard;

3) Poor contact or damage to the graphics card;

4) Poor CPU contact;

5) Poor contact of memory modules;

6) Machine infection.

CIH virus, BIOS

is destructively refreshed.

1. Press F8 to enter the safe mode when you boot up, if you can enter it, it means that it is not a hardware problem.

1) Virus or other reasons, after entering the safe mode, antivirus;

2) The resolution of the monitor is too high, enter the safe mode to adjust the resolution and reboot.

2. If you can't enter the safe mode after booting, consider the system crash or hardware problem.

1) Hardware problems are divided into several situations, and the most important situations are as follows.

A Memory, graphics card, CPU dust removal, oxidation removal;

b. After cutting off the power supply, remove the motherboard button battery for a few minutes, and then reinstall it and turn it on after the motherboard is discharged.

2) The system crashes completely, in which case the system is reinstalled.

1. Press F8 to enter the safe mode when you boot up, if you can enter it, it means that it is not a hardware problem.

1) Virus or other reasons, after entering the safe mode, antivirus;

2) The resolution of the monitor is too high, enter the safe mode to adjust the resolution and reboot.

2. If you can't enter the safe mode after booting, consider the system crash or hardware problem.

1) Hardware problems are divided into several situations, and the most important situations are as follows.

A Memory, graphics card, CPU dust removal, oxidation removal;

b. After cutting off the power supply, remove the motherboard button battery for a few minutes, and then reinstall it and turn it on after the motherboard is discharged.

2) The system crashes completely, in which case the system is reinstalled.

Why does the computer screen go black after booting up, and how to solve it.

From my personal experience, half of the assembly machines and laptops appear more, some are faulty, some are setting problems, and the solution to the failure is generally:

First, check whether the interface and power cord of the chassis power supply are in good condition. If the interface and power cord are damaged or broken, they should be replaced in time

1. The lamp may also fail, and the lamp should be replaced within 500 oceans; ps：xian86913

2. There is also a booster plate, or a high-voltage plate failure, which is an element that supplies pressure to the lamp, generally at the bottom of the screen. The maintenance cost is about 200-300; ps：xian86913

3. If the motherboard does not supply power. That is, there is no power supply to the booster plate. The maintenance is about 200-300 yuan; ps：xian86913

4. Then there is the overheating of the machine, which causes problems with the graphics card; ps：xian86913

5. If the memory is loose, try to see if the memory of the machine is loose, or you can also see if the hard disk cable is loose, etc.

If none of the above can be solved. ps：xian86913

Black screen suggestion: Take it to the manufacturer's repair station for free during the warranty period, or find a computer repair company with a good reputation.

There is also a black screen is a problem with computer settings, that is, it can be solved in this way if you don't use the automatic black screen for a long time:

Tap [Start] in the lower left corner of the screen - select [Control Panel] - find [Power Options] - select [Balance] - click [Change Plan Settings] - set the computer to sleep "Never".

However, if you set it up like this, the hard disk will work all the time, which will have a certain impact on the service life of the hard disk.

Why does the computer screen go black after booting up, and how to solve it.

Hard drive cable!

You look at what the English prompt is when you look at the black.

Unplug the memory module and try to see if it will sound when you turn it on, and if not, change the motherboard decisively.

The graphics card is broken, turn on the machine a few more times.

If the computer can start normally, but the black screen is turned on, it is generally due to the failure of the system, and it is caused by the failure of the graphics card driver, it is recommended that you can update the movement of the graphics card first, if not, then reinstall the system, if it can't be turned on normally, it will be powered off, open the case, pull out the memory module, wipe the gold finger of the memory module with an eraser or toilet paper, and the same steps are the same if there is a graphics card, and then try to boot it again, you should be able to enter the system normally.

There are many reasons why the laptop can't turn on the black screen, it may be the simplest problem of not plugging in the power supply, or it may be the problem of hardware damage.

Reasons why the computer can't turn on the black screen and how to solve it:

Step 1: First of all, according to the specific situation analysis, if there is no power response directly, then check whether there is a power supply, poor contact, hardware and other problems, go to the second step, if it is not possible to enter the system may be operating system or software problems to go to the third step.

Step 2: Check whether there is a power supply problem, first see if the power supply is not plugged in well or there is a problem with the plug, if you are using a battery, then plug it in and try again. You can go to a friend or go to a computer repair shop or sales store to find the same model of power supply to try it.

After replugging the power supply, press the power button again, and if it still can't be turned on, then press it for a while. If you change someone else's power supply to turn on, it means that there is a problem with the power supply, if it proves that there is no problem with the power supply, it may be the hardware reason, go to the fifth step.

Step 3: Go to the last correct configuration to adjust, turn on and press and hold F8, enter the advanced options page, select "The most recent correct configuration", and press Enter. If it can enter the system, it may be caused by viruses, incompatible hardware drivers with the system, or operating systems.

After entering the system, run the anti-virus software, check and kill the virus, if there is a virus, restart the computer after the anti-virus, if it is not normal, it may be caused by the incompatibility of the device driver and the program, delete the graphics card, network card and other drivers, restart it after removing the driver, if there is still a problem, then go to the next step.

Step 4: Repair and install or reinstall the system, set "Optical Drive as the first boot device" in the BIOS, then insert the system disk, and press the R button to perform "Repair and Installation". If the fault persists, just at the beginning of the system, select "One-click GOST to restore the system" or use the system disk to reinstall the system.

Step 5: Check whether there is a hardware problem, disassemble the notebook to see if the hardware is loose, generally the hardware is not plugged in well, there will be an alarm sound, the long sound continues to sound that the memory module is not plugged in tightly, one long and one short means that the memory or motherboard has a problem, one long and two short means that the graphics card is wrong. If there is too much dust inside the notebook, it is best to clean it up first.

In addition, pay attention to whether it is caused by the new hardware, if it is normal before the replacement of the hardware, and it is not normal after the replacement, then check whether it is compatible. If it doesn't start at this time, it's best to send it for repair, and a professional will check whether there is a problem with your hardware one by one.

Precautions: There can be many reasons for not turning on the machine, don't be irritable in the process of troubleshooting, be careful, if you don't know much about the computer, don't repair blindly, so as not to cause greater damage, you should find professionals to repair in time.

This situation is very complicated, there are many kinds of black screens, it is a common problem that there is no display at all or flashes a black screen to a black screen, generally there are more problems with the graphics card and the motherboard, you can try it.