How to solve the Win7 system boot screen no signal input problem

The day before I started the computer, the display (screen) appeared on the display (no signal input), then the black screen. My computer's system is Win7, I ruled out several reasons, and finally started normally. Here's how to share it with everyone.

a, the host computer and the monitor cable is not connected or damaged cable

general, we can check the rear of the monitor VGA cable is properly installed, as well as behind the host The connection port also needs to be checked. Some users have two VGA ports on the desktop computer. Remember to plug in the independent display port to boot normally. Of course, you can also replace the cable test.

Second, the host does not start normally.

If the computer has not moved, then the host fails to boot properly, causing the display to not receive the signal is a big reason. It is recommended to test according to the following method. .

1. Open the side cover of the chassis;

2. Re-plug the memory;

3. Re-plug the graphics card;

4. Check whether the power cables are connected properly.

5. Thoroughly clean the chassis dust.

6. Discharge the CMOS battery and replace the battery if necessary.

7 If the above steps can not be solved, it is recommended that the host be sent to a professional for repair.

Normally, after the computer is turned on, “No Signal Input” is caused by the fact that the monitor does not receive the signal from the host, and it can be solved according to the method described in the small series.