Win7 system Start-up screen "no signal input" prompt causes and solutions

A user is reflected in the use of the Win7 system, a computer screen will appear "no signal input" prompt, not much time the computer will automatically black screen. Why does this happen? What should we do when we encounter such a situation? The system appears "no signal input" hint there are many possible reasons, the following small series to share with you about the cause of the problem and the corresponding solution, the need for users may wish to learn!

Reason one:

The connection line of the host and monitor is not connected or the connection line is damaged;

Workaround:

Check that the VGA cable on the rear of the monitor is installed properly, and then check the connector at the back of the console, and the VGA cable should be plugged into the connection port of the discrete graphics card.

Reason two:

The host does not start properly, it is possible that the host problem causes the monitor to not accept the signal;

Workaround:

1. Open the side cover of the chassis;

2. Reseat the memory strips;

3, reseat the video card;

4, check whether the power cable connection is good;

5. Complete cleaning of the chassis dust;

6, the CMOS battery discharge, if necessary, replace the battery.

The above is the computer screen "no signal input" prompt reason and solution, if the above steps do not solve the problem, it is recommended to send the host to professional maintenance.