What should I do if my computer has a black screen?

1.Generally, the CPU heat dissipation is not good, turn on the computer to see if the CPU fan is normal, if it does not rotate or the speed slows down, then clean the CPU fan with dust, oil, and silicone. That's fine.

2.It may also be that the contact of the discrete graphics card is not good, the reputation is not good or the heat dissipation is not good, the discrete graphics card is the built-in card that connects to the display, first look at the fan of the discrete graphics card, if not, clean it up, if the graphics card fan is fine, then unplug the graphics card, clean it up with an eraser.

3.Due to the sudden shutdown, the next time the system boots up, it will automatically detect the disk file rolling, and at the time of booting, a light blue screen will appear, and there are some English letters that are constantly changing. Press any key to skip this process.

But the next launch will continue. This is normal. This thing can appear as long as it is shut down illegally.

If it persists, it is recommended to reinstall the system to resolve the issue.

4.To see if the memory module is loose or there is too much dust, it is recommended to unplug the memory module as well, wipe the metal card part of the memory module with an eraser, and then press the clamp tightly.

A computer is a machine that uses electronic principles to process data according to a series of instructions. A computer can be divided into two parts: a software system and a hardware system.

The first computer was the ENIAC general-purpose electronic computer born at the University of Pennsylvania in the United States on February 15, 1946.

People refer to computers without any software installed as bare metal. With the development of science and technology, some new types of computers have emerged: biological computers, photonic computers, quantum computers, etc. On May 24, 1954, the transistor electronic computer was born.

A black screen is a common phenomenon, especially on older computers or builds. There are many reasons for the failure of a computer black screen, such as a damaged monitor, a damaged motherboard, a damaged graphics card, a poor contact of the graphics card, a damaged power supply, a damaged CPU, etc. For the treatment of the black screen of the computer, the method of eliminating and replacing the core is basically adopted, and the principle should be based on replacing and eliminating the most suspicious parts first.

For users who have insufficient professional knowledge, they can analyze the cause of the failure according to the following steps, so that they can eliminate the fault by themselves.

Start by checking that the contact is good. Check whether the contact between the graphics card and the monitor is good, and whether the contact between the graphics card and the motherboard IO slot is good, and if necessary, remove it and reinstall it again to ensure that it is installed in place and in good contact.

If there is no problem with contact, it is best to try a different monitor to make sure that the monitor is fine.

If there is no problem with the monitor, check whether the CPU fan is running, if it is running, use a multimeter to measure whether the voltage output is normal to 12V, 15V, if not, you can change the power supply to give it a try.

If the black screen still appears, take out the components installed in the computer, leaving only the CPU, graphics card, and memory sticks, and the cause of the fault can be limited to the CPU, motherboard, and memory. Generally, if there is a fault in the memory, there should be an alarm sound. If the memory fault is ruled out, only the CPU and the motherboard are left.

Change a normal CPU (should be compatible with the tested computer), boot and re-test, if the black screen still appears, you can only change the motherboard, and the problem should also appear on the motherboard.

A black screen may indicate a serious problem with your computer, and you may wish to eliminate it as described above when the black screen occurs. In the process of treatment, the method of exclusion and substitution should be flexibly applied, and the phenomenon that occurs in a timely manner should be excluded.

Heavy such as Tan Xin to connect the display wiring, or replace the potato oak cable; If the host has dual graphics cards, change to another graphics card for testing; Replug and unplug the memory, use the eraser, and wipe the gold finger of the memory number Sakura; Unplug the battery button, wait for more than ten minutes and then reinstall and turn it on; It is also possible to change the computer monitor to the test.

Sometimes the slot of the memory module is like this, and it will only be normal if you unplug and unplug it a few more times.

There are many possible reasons for the black screen,The problem description seems to be one of the reasons for the instability of the memory, poor contact, and the wide and stupid slot,A game of coincidence is generally compatible with the master of the machine Clever key board single memory insert DIMM1,That is, the No. 1 slot,It is recommended to run the memory test software after a single strip is plugged in,Both are tested to see the situation。

It's not that you can just give your hands empty.,If it's not, it's definitely his program that has some malfunctions.,Bi Bi is blind next to him.,Let him adjust the program or use something to clean up the computer.。

Hello, here's how to fix the black screen when your computer boots up:

1。Try to boot the computer, after the computer brand is out, press F8, press Enter, Enter, enter the safe mode, and start advanced.

options, the last correct configuration, Enter, Enter, press to try!

2。No more, enter the safe mode, start normally, press enter, and after you get to the desktop, you can kill the virus completely!

3。Use: 360 Security Guard, "Trojan Horse Killing": "360 System First Aid Kit", guess before system repair, select all, fix immediately! Network Repair, Start Fixing!

Again: Start First Aid! After restarting, click on "File Recovery", select all, and delete the files completely!

4。If you can't do it again, unplug the graphics card and memory module, erase it, use a brush again, clean the slot dust and fan, replace the memory slot, etc.!

6。If you still can't turn it on, you need to "one-click restore" or "reinstall the system"!

7。If there is a problem with the hardware, send it for repair!

What should I do if my computer has a black screen and won't start? The black screen of the computer is something that everyone often encounters when using the computer, and there are many reasons for the black screen of the computer, and there are different solutions to different black screen problems.

1. After upgrading the computer, the screen will be black and the power indicator will be on

Phenomenon: After the computer upgrades the memory and hard disk, there is no movement when it is turned on, and the power indicator is on, but the computer cannot start. After replacing a memory, the fault persists.

Solution: In case of such failures, we should first check whether the installation of the memory module is secure, and then check the compatibility between the memory module and the motherboard. The specific steps are as follows:

1. First of all, plug the memory module back in and test whether it is solved at boot.

2. If there is a fault, clean the motherboard memory slot, use the gold finger of the rubber memory, and then open the computer to try after the finish, if the boot screen appears at this time, it means that the memory module is in poor contact with the memory slot.

3. If the memory module and graphics card are installed firmly, then use alternate to check the memory module, and then start the computer to try, if the fault disappears. This shows that there is a problem with the original memory module, and it is okay to replace it with a new one.

2. After pressing the restart button, the monitor screen goes black

Phenomenon: When the computer optical drive is reading the disk, due to the poor quality of the disc beam, there is a crash failure, and the display screen has been black after pressing the restart button.

Solution: According to the fault analysis, it may be related to the RESET hot start button cable. In addition, it may also be caused by problems such as loose display signal cables and overheating of the CPU.

Check the RESET hot-start button and its cable first, and then check the CPU overheating and other accessories, as follows:

1. First check the restart button of the case, and find that the restart button is no longer elastic, and it can't automatically pop back when pressed.

2. Remove the cable of the restart button, and then short the power switch on the motherboard.

3. The computer cannot start normally. Remove the restart button, find that the spring of the restart key has been broken, after replacing the spring of the restart key, the key will return to normal with slag section, try to boot, the problem is solved.

3. After turning on, the display screen is black, and the power light flashes and goes off, and it cannot be started

According to the fault analysis, it may be caused by the shutdown signal received after the computer is booted or the motherboard does not have the conditions to boot, such as the power supply problem of the motherboard cup and the short circuit of the motherboard. To check whether there is a problem with the power button and cable, and then check the ATX power supply and motherboard, the specific operation is as follows:

1. First check the power button of the host and find that the elasticity of the button is poor.

2. Then open the main chassis, connect the boot button and restart button of the computer and remove the wire, and then short-circuit the power switch of the motherboard, the computer can start normally, indicating that there is no problem with the motherboard and ATX power supply of the computer.

3. Check the computer switch spring, find that the spring is useless, after pressing, sometimes it can slowly bounce up after a while, so the motherboard is turned on and shut down immediately, after repairing the power switch, turn on the computer to test, and the fault problem is solved.

It's black, you have to know how it's black. Is it black at the beginning, or is it black when you use it? If it doesn't turn on, see if there is a problem with the memory module.

If you use it, it will be dark, and many times the heat dissipation is not good, see if there is a problem with the fan. There may also be a virus at work. The number of problems is not much, and the reboot is normal and used first.