Why does the monitor not light up when I turn on the win7 system computer?

　Why does the monitor not light up when I turn on the win7 system computer? When a user needs to use the computer, he turns on the computer and finds that the computer monitor is not lit. The power supply is connected normally and the power light is on. So how do we troubleshoot this situation? Many friends don’t know how to operate in detail. The editor below has sorted out the solutions to the problem that the display does not light up when the win7 system computer is turned on. If you are interested, follow the editor to take a look below!

Solution to the problem that the display does not light up when the win7 system computer is turned on

(First of all, it has been determined that the screen does not respond after the host is turned on normally. You can try it. The following methods are used to solve the problem of the monitor not lighting up)

　1. Check whether the monitor's black screen is caused by a problem with the monitor's power supply, as shown in the figure below: Try to re-plug and unplug the monitor's power supply and data connector, so that It can solve the black screen caused by power problems.

　2. If the screen is still black after re-plugging and unplugging the monitor power supply, you need to try a simple cleaning of the memory module to continue to eliminate the cause of the black screen.

Note: Make sure the host is powered off before removing the memory module.

　3. The black screen is still not resolved even after the memory module has been cleaned. You can try to disassemble the CMOS battery, cut off the power for a few minutes, and then reinstall it.

　4. If all the above operations do not solve the black screen problem! Basically, it can be judged that there is a problem with the data cable!

But to be on the safe side, it’s best to clean the graphics card and check if there are any abnormalities in the graphics card before trying to boot!

If it is not resolved, it is recommended to replace the data cable to finally determine whether it is a graphics card problem or a data cable problem.

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