The signal light of the computer s black screen display is normal and urgent

This I'm afraid I have the most right to speak My machine is this problem before it was repaired Brother I tell you very responsibly After ruling out the problem with the display, there may be something wrong with the graphics card Specific fault You check whether the temperature of your graphics card is high when running the program If the temperature exceeds the standard, it may be a problem with the heatsink Try to change the heatsink In addition to the problem with the graphics card and the monitor, which can lead to a black screen, the last killer is the hard disk But in my experience, the hard disk causes the most blue screen and crash It's a little different from what you described, and if you think about it, it's still a graphics card problem or a display problem, and in addition, you plug the hardware back in, and sometimes the lines are loose, and it will also cause a black screen.

It may be a problem with the tightness of the memory module If it is aged, it may be a problem with oxidation, rub it with an eraser. If it's a new one, it may be a problem with the motherboard. It is recommended to try the motherboard. It's also possible that the line isn't plugged in.

When the screen is black, take a flashlight to the screen, take a closer look at the screen to see if there is a display, if there is, it means that the lamp of the display is broken, if you have the ability, disassemble and check the high-voltage circuit and bulb. Which one is changed and which one is repaired.

If the problem is not clear, let's understand it too generally! In my understanding, it's not a problem on the host's side. It's the monitor that's wrong.

Try a different system, you can see that if you enter the system, the system is the most suspicious. It's best to try installing it on a different system first. If it still doesn't work, then change to a power supply with a little more power.

Then we rule out the problems with the monitor, then think about the memory, and finally the graphics card and motherboard.

Your question is basically considered to be installed on a different version of the system.

See if you can go to doc and see if the screen is still black!

If it's not hacked, maybe your system is pirated and blackened by Microsoft, and my previous XP is yes.

If this is not the case, use a bright light to shine on the screen to see if there is anything displayed, if so, the background light is broken.

After that, the problem of the display cable, graphics card, and motherboard will be eliminated, and I wish the landlord an early solution to the problem.

Try it with another monitor first, just replace the cable with it, how to have a display, that is, there is a problem with the display, the picture tube in the monitor has been replaced, you need to change it, if it is not displayed, install a system first, and then use an eraser to erase the graphics card.

Please make it clear which of the two power indicators is.

First, if it is a monitor, check whether the power cord of the monitor is damaged or loose. If it's all right, then grab the monitor and fix it.

Second, if it is the main engine, open the chassis, under the normal boot situation, open for a period of time, touch other metal objects with your hands to eliminate static electricity, and then touch the internal temperature of the chassis to see which part of the temperature is too high to judge.

Common problems: First, the power supply part of the motherboard is abnormal, and the capacitor is damaged, resulting in insufficient power supply.

Second, the aging of the power supply of the host can generally be simply judged according to the size and temperature of the air blown by the power supply fan.

Third, the memory module, CPU, and graphics card are loose, and the possibility is from large to small for the memory card CPU at one time.

Fourth, the motherboard has dust or other foreign objects that cause a short circuit, and you can clean it by yourself.

The above situation is when the power cord and plug-in board are normal and in normal contact.

The monitor power cord has fallen off.

The back of the monitor or the plug on the socket strip is loosened and plugged in again, and after the two ends are plugged in, don't forget to press the monitor start switch to turn on the monitor.

Good luck!

If the computer host light is moving, there is no signal on the display screen. I guess it's your computer's memory problem. You can open the detached memory. Swipe a few times and plug it back in to see.

The monitor backplane plug is loose.

Take a look.

Hello, I am glad to serve you and give you the following answers: The display indicator light is black and the screen is on, but there is no image displayed on the monitor, only a pitch black background. This issue is usually caused by the monitor's power supply not working properly, or it can be an issue with the graphics card.

Workaround:1Check whether the power supply of the display is normal, check whether the power cord is connected, check whether the power plug is connected to the lead, and check whether the power socket has electricity.

2.Check whether the graphics card is normal, check whether the interface of the graphics card is connected, check whether the driver of the graphics card is installed properly, and check whether the graphics card is faulty. 3.

Go to the BIOS settings, check if the display device is set up correctly, and check if the display device is disabled. 4.Check the settings of the monitor, check if the resolution of the monitor is set correctly, and check if the frequency of the monitor is set correctly.

5.Check your monitor's safe mode, which restricts the functionality of your monitor and may cause your monitor to only display a black background if the mode is enabled. 6.

Check that the power button of the monitor is working properly, if there is a problem with the button, it may cause the monitor to not work properly. 7.Check whether the signal cable of the monitor is properly connected, if the signal cable is not properly contacted, the monitor may only display a black background.

8.Replug the power and signal cables of the monitor to check for connectivity issues.

Summary. If the computer has a signal but the screen is black, it may be due to a poor interface connection or a problem with the graphics card. You should first check whether the interface between the monitor and the computer is firmly connected, and if it is fine, it is recommended to change to a new monitor to test.

If the computer has a signal on the normal monitor but the screen is black, it may be due to poor interface connection or a problem with the graphics card. You should first check whether the interface between the display and the computer is firmly connected, if it is okay, it is recommended to replace it with a new monitor to test.

1. Check whether the graphics card or motherboard power cord is in poor contact, and ensure that the contact is good; 2. Check whether the power cord of the display is in poor contact, and ensure that the contact is good; 3. Check whether the graphics card is abnormal, if so, replace it with a new one; 4. Check if there is a problem with the graphics card driver, if so, the driver should be reinstalled; Zheng Huai 5. Check whether the graphics card is overheated, if it is overheated, heat dissipation should be carried out; 6. Check whether there is a problem with the power supply of the graphics card, and if so, you should call your relatives and friends to change the power supply.

A computer monitor light is on but the screen is black can be caused by a variety of reasons, here are some possible solutions:

1.Check the power supply: Make sure that the computer power plug is well connected, that the power switch is turned on, and that the monitor is powered on normally.

2.Check the monitor connection: Make sure that the display loser is properly connected to the computer, including cable connections and port connections. If you're using an HDMI or DisplayPort port, make sure it's configured correctly.

3.Check your display settings: Try changing your display settings, such as resolution, refresh rate, and display mode, to make sure your display is working properly.

4.Check your graphics card: If your computer is using a discrete graphics card, make sure the graphics card is connected and working properly. You can try unplugging the slide graphics card, reinserting it, or replacing it with another one to see if it's working.

5.Check for hardware failures: If none of the above methods resolve the issue, it may be a hardware failure. Try contacting your computer manufacturer or a professional repairer for help.

It is important to note that the above workarounds may not be applicable in all cases, and specific workarounds may need to be analyzed on a case-by-case basis. If the problem persists, it is recommended to contact a repair professional at 400-698-7786 for assistance.