Black screen, no signal from the display, black screen with no signal all the time

Is poisoned, redo the system after formatting all physical disks.

Check if your CPU is overclocked?

Summary. The solution is to first look at whether the display data cable is connected, and if the computer uses a separate display platform, the data cable should be connected to the **output interface of the graphics card, rather than the **signal output interface of the motherboard' Another more common is that the computer memory is loose or caused by too much dust, resulting in no signal on the display, the most obvious situation in this situation is that everything seems to be running normally inside the computer, but the display has no signal. This kind of problem is more in the computer for a long time, a long time has not been cleaned up dust is likely to appear, the solution is to take out the memory module, clean the memory stick gold finger with a paper towel, and then install it back; Another is that if it is a solo graphics card, a similar problem will occur if the graphics card is loose, and it is recommended to reinstall the graphics card to solve the problem.

Pro, there may be the following reasons for the display data cable to have no signal: The connection of the host of the monitor data cable is loose or the Tong Yuchong has fallen off. The display data cable is damaged (this situation is generally rare, mainly pay attention to whether the pins are bent or broken). Internal problems of the computer host (mainly such as loose memory modules, loose graphics cards, poor output interfaces, etc.).

The solution is to first see whether the display data cable is connected, in addition, if the computer uses a separate display platform, the data cable should be connected to the **output interface of the graphics card, rather than the **signal output interface of the motherboard' Another more common is that the computer memory module is loose or the auspicious person has too much dust, resulting in no signal on the display, the most obvious regret of this situation is that everything seems to be running normally inside the computer, but the display has no signal. This kind of problem is more in the computer for a long time, a long time has not been cleaned up dust is likely to appear, the solution is to take out the memory module, clean the memory stick gold finger with a paper towel, and then install it back; Another is that if it is a solo graphics card, a similar problem will occur if the graphics card is loose, and it is recommended to reinstall the graphics card to solve the problem.

Hello, glad to answer for you. If the data cable connection between the computer host and the display is loose, it will also cause no signal to be transmitted to the monitor, so check whether the ** cable on the monitor and the computer host is not plugged in. 2. Usually after the computer is turned on, the motherboard will generally "beep" to prompt the boot successfully, indicating that the boot self-test is completed, that is to say, you can hear the "beep" sound to indicate that there is no problem with your motherboard, and the display signal, which is very easy to search for is caused by the loose or damaged independent graphics card, it is recommended to replace the graphics card, connect the VGA data cable to the replaced graphics card interface to see if it can display Bi Xili; 3. If you don't hear a "beep", then it may be caused by poor contact between the memory module and CPU on your motherboard.

Summary. The computer boots up and shows no signal and then a black screen.

Solution: 1. If the data cable connection between the computer host and the monitor is loose, it will also cause no signal to be transmitted to the monitor, then check whether the ** cable on the monitor and the computer host is not plugged in.

2. Usually the motherboard will "beep" after the computer is turned on to prompt the boot success, indicating that the boot self-test is completed, that is to say, you can hear a "beep" sound to indicate that there is no problem with your motherboard, and the display signal, it is likely to be caused by the loose or damaged independent graphics card, it is recommended to replace the graphics card, connect the VGA data cable to the replaced graphics card interface to see if it can be displayed;

3. If you don't hear a "beep", then it may be caused by poor contact between the memory module and CPU on your motherboard.

4. Many computer motherboards will not have a prompt sound when they are turned on normally, for this kind of motherboard, as long as they look at whether the fan is turning after turning on;

5. If there is a sound after booting, but the monitor has not responded, and there is no "no signal" prompt, then the VGA cable is loose.

The monitor has no signal and a black screen.

The computer boots up and displays no signal and then black screen Solution: 1. If the data cable connection between the computer host core and the display is loose, it will also cause no signal to be transmitted to the display, then check whether the ** cable on the monitor and the computer host is not plugged in. 2. Usually the motherboard will "beep" after the computer is turned on to prompt the successful boot, indicating that the boot self-test is completed, and it is also changed to say that you can hear the key filial piety "beep" to indicate that there is no problem with your motherboard, and the display signal, which is likely to be caused by the loose or damaged independent graphics card, it is recommended to replace the graphics card, connect the VGA data cable to the replaced graphics card interface to see if it can be displayed; 3. If you don't hear a "beep", then it may be caused by poor contact between the memory module and CPU on your motherboard. 4. Many computer motherboards will not have a prompt sound when they are turned on normally, for this kind of motherboard, as long as they look at whether the fan is turning after turning on; 5. If there is a sound after booting, but the monitor has not responded, and there is no "no signal" prompt, then the VGA cable is loose.

The above is the answer to the question of the computer booting up and showing no signal and then black screen.

When the computer monitor has a black screen and no signal, and the host computer is running normally, there may be several reasons:

Cable history problem: Check whether the connection between the computer monitor and the main unit is stable. If the connection is poor or damaged, the monitor will not be able to receive the spike signal, resulting in a black screen.

Display issues: If your computer is working but the monitor isn't responding, there may be a problem with the monitor itself. Try connecting the monitor to another computer for testing, and if it doesn't work as well, the monitor may be malfunctioning.

Graphics card problem: The graphics card converts the image signal generated by the computer host into a signal that can be recognized by the display, and if there is a problem with the graphics card, it will cause the display to fail to display normally. You can try to reseat the graphics card, or replace the graphics card to resolve the issue.