The monitor screen is broken, and I want to change the desk lamp, but because I don't connect the computer host, the lamp goes out at once, saving electricity automatically. How can I keep it?

(1) The most common method that can't be ruled out when starting a computer.

The most common things that the computer does not respond when it is turned on are: the power cord of the computer host is poorly connected, the monitor switch is not turned on, and the power supply or data cable of the monitor is poorly contacted.

When it is found that the computer does not respond when it is turned on, we need to first observe whether the power indicator light of the computer lights up after the computer presses the power button. When the power indicator goes out, it is likely that there is something wrong with the power supply. You can check whether the host power cord is connected with an external power supply and whether there is a line fault. When the power supply of the computer is bad, there will also be no response when the computer is turned on, which requires some simple troubleshooting to confirm. When the computer indicator light is on and the cpu fan inside the computer rotates normally, generally speaking, it can be preliminarily judged that there is no major problem with the power supply. Let's check the monitor again to see if the power indicator of the monitor is on and whether the data cable of the monitor is connected properly.