The reason and solution for the "No Signal Input" prompt on the Win7 system boot screen

Some users have reported that in the process of using the win7 system, when the computer screen is turned on, the message “No signal input” appears, and it will not be long before the computer automatically blacks out. Why is this happening in the system? What should we do when we encounter this situation? The system appears "No signal input", there are many possible reasons for the prompt, the following small series will share with you about this problem. The reason and the corresponding solution, users in need may wish to learn!

Reason one:

The connection between the host and the display is not connected or the cable is damaged;

Solution:

Check if the VGA cable on the back of the monitor is installed properly. Then check the connector on the back of the main unit. The VGA cable should be plugged into the connector of the discrete graphics card.

Reason 2:

The host does not start normally. It may be that the host is unable to receive the signal due to the host problem.

Solution:

1. Open the chassis. Side cover;

2, re-plug the memory module;

3, re-plug the graphics card;

4, check whether the power cable is connected;

5. Thoroughly clean the chassis dust;

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

The above is the reason why the computer screen appears "no signal input" & prompts, if the above steps can not solve the problem, it is recommended that the host send to the professional for maintenance.