What's wrong with the computer keyboard light not coming on? Attachment: Detailed explanation of how to deal with a black screen and unable to turn on the computer.

php editor Baicao has the answer for you: There may be many reasons why the computer keyboard light does not light up, such as power supply problems, hardware failures, driver errors, etc. First, make sure the power cord is properly connected and plugged into the outlet. If it still doesn't light up, you can try restarting the computer or changing the keyboard. If the problem is not resolved, it may be a hardware failure and you need to contact after-sales service. If your computer has a black screen and cannot be turned on, you can try cleaning the memory, checking the graphics card slot, reinstalling the operating system, etc. If the problem is still not resolved, it is recommended to seek professional technical support.

Computer startup black screen or computer blue screen is one of the common computer faults. Many netizens usually don’t know what to do when their computer starts up with a black screen. So what should I do if the computer screen is black and cannot be turned on? Next, Li Junhui will teach you how to solve the problem of the computer failing to start with a black screen.

Details are as follows:

1. The startup indicator light is on, the fan is rotating, and the black screen is not displayed at startup, but the keyboard light is on: First, please confirm whether the electrode connection cable between the display screen and the host is loose. If it is an independent display device, you must check whether the contact between the independent graphics card and the graphics card slot on the motherboard is good. If necessary, please take out the independent graphics card, clean the gold finger of the graphics card with a clean rubber sheet, clear the graphics card slot with a soft brush or leather blower, and use the 2-hole socket of the independent graphics card again to ensure that the 2-hole socket is in good contact in time. If the display and graphics card are installed reliably, you need to try replacing them to determine a normal display. If it doesn't crash again, the main reason is that the display might be damaged.

The startup indicator light is on and the fan is spinning, but the screen is black and the keyboard light is not on. This may be caused by loose or dusty computer memory modules. You can try the following methods to solve the problem: first remove the computer memory module, then wipe the pin part of the memory module with a clean eraser, then use a soft brush or leather blower to clean the memory slot, and finally reassemble it. Usually, such problems can be solved.

#3. If the same problem cannot be solved, it is likely that there is a problem with the level of your computer's motherboard, or the computer's motherboard has a buffering effect. At this time, it will BIOS unplug the rechargeable battery and try again, so that the problem can be solved.

4. After starting for a period of time, the power light will go out while flashing. Your desktop computer console may have some circuit failure issues. At this time, you can open the main case, reinstall the electrode connection cable between the switching power supply and the computer motherboard, and then check whether your computer can start. If it cannot start normally and the main source is broken, it is usually necessary to replace the power supply.

5. If the computer can be turned on, but may restart at this time, then this situation may be a problem with the computer operating system. You can check U disk reinstall the system to handle.

ok, this article ends here. I hope it can help everyone. If you finish reading what is going on when the computer keyboard light does not come on, "Attachment: Detailed explanation of how to deal with a black screen and a problem with turning on the computer." If you still don’t understand this article, you can read it a few more times!

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