The computer can t be turned on, it s urgent

No signal input"To be sure, this must be a matter of data transfer:

Check whether there is a problem with the display data cable, you can take someone else's monitor to connect it to your computer to try it, if there is a display, it proves that there is a problem with the display data cable; Otherwise, check whether there is a problem with the graphics card, see if the graphics card is out of the card slot, you can open the case and press the graphics card network card slot, if the display is normal, the graphics card is loose; Otherwise, you may make the graphics card bad or the monitor bad.

No signal input is generally a problem with the graphics card, either the line is loose, or the driver is broken; If it doesn't work to restart, check your graphics card, if it's integrated, if it's broken, change to a separate one, how much it costs, depending on what kind of graphics card you buy;

I bought a 2 mobile phone for a friend when I was 11, and I had the same problem, so I took it and fixed it. As a result, as soon as I got to Xiu, he plugged it in and could use it, and it didn't matter at all! It's a problem with the graphics card, and the interface between the graphics card and the monitor is not connected.

You can check whether the interface between the graphics card and the monitor is connected.

The computer is on, a song is playing, and suddenly the computer display shows "No signal input".

It means that there is no problem with the display itself, check whether the signal cable of the display is loose, and then it is a problem with the graphics card.

My computer also has the same problem as you, I don't know what burned out, and it took nearly 200 repairs

It is very likely that the graphics card is burned, you can check whether the graphics card has not been turned by the fan and the graphics card is burned!

It's a problem with the graphics card, my computer used to be like this, just change the graphics card.

If you don't plug the graphics card back in, there may be a loose plug inside the computer, or a problem with the socket.

Replace the graphics card, the graphics card is broken, it is recommended to change it to a colorful one.

You plug the graphics card back in and clean up the slots and cheats.

Check the pins on the signal cable again!

The colorful graphics card garbage is dead, and after 3 years, the fan rings like an airplane.

Check to see if the monitor is not connected

The plug inside the computer is loose.

Plugging the graphics card in and out of it may be a lot more gray.

The economic problem is still taken to the people. Don't cure the deaf into mute.

Problems with the monitor when possible.