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Hello everyone, Lin Fei to answer the above questions, the computer boot monitor is not bright host is still running, the computer boot monitor is not bright many people do not know, now let's take a look!

In our daily life, when we use computers, we always encounter all kinds of computer failures. When we press the power switch, the display screen does not light up. I believe that every friend who has used a computer has encountered such a problem, so what if the monitor is not lit? The following is a description of how to deal with unlit monitors for your reference.

The cause of display failure and its solution

1. There is a problem with the power cord that does not light up on the monitor.

When we press the power switch and the monitor is not lit, the first thing we need to check is the power cord, whether the power cord is loose, whether the power cord and socket are powered on, and then unplug the power cord. If it does not show, you can change to a good power cord for testing. If the display power cord is broken, you can replace it with a good power cord.

The 2.VAG cable does not show up.

To rule out the power cord, the next thing to consider is the problem of the VAG data cable. You can try to unplug the VAG cable from the screen and the back of the main chassis, reconnect it, and see if the monitor shows. If not, there may be a problem with the monitor or VAG cable. First of all, replace a good VAG cable with the replacement method. If it can be displayed, it shows that it is the problem with the VAG cable, and the replacement of the VAG cable can solve the problem.

3. There is something wrong with the display screen. It doesn't light up.

Troubleshoot the power cord and VAG cable, there may be a problem with the monitor. We also use substitution. First of all, we can connect the monitor to another good motherboard to see if it is displayed when it is turned on. Note that if you are connecting to a laptop, some will not be displayed until you switch the plug-in. FN window function keys are generally used. My notebook is F10. If the monitor cannot be displayed, it is the fault of the monitor itself, and the monitor should be sent to the repair shop for repair.

4. The motherboard does not show up.

To rule out the above three possibilities is the problem of the computer motherboard. First of all, let's check whether the connection cable in the chassis is loose and whether there is any smell in the chassis. If not, you can remove and install the CMOS battery, then unplug and insert the memory stick to clean up the dust in the memory stick. You can wipe the gold finger of the memory stick with an eraser. If you have a video card, you can unplug it again. Of course, if there are conditions, you can find a good graphics card instead.

If you are familiar with the computer and there is a PCI slot on the motherboard, you can insert the diagnostic card. Check the code of the diagnostic card to determine the approximate scope of the problem. If there is a buzzer on the motherboard of some computers that do not have a diagnostic card, the approximate scope of the problem can be determined by the sound of the buzzer. Finally, if it still doesn't work according to the above method, you have to go to a professional maintenance shop for maintenance.

The above is a detailed description of how to deal with the problem that the desktop monitor is not lit. If you encounter the same problem, you might as well follow the above method, hoping to help you solve the problem.

At the end of this article, I hope it will be helpful to you.

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