Win7 computer boot screen shows no signal how to do

        What should I do if the win7 computer boot screen shows no signal? Below, Xiaobian will introduce it in detail!
1. First, we need to ensure that the display is normal. If the display is normal, then the data cable may be connected incorrectly, because some computers are double The graphics card may be inserted incorrectly.
2. If it is a desktop computer, it is recommended that you move the host out and reconnect the data lines behind it. These data lines may be the cause of no signal.
3. If you still can't solve the problem, you need to open the case, then find the graphics card, clean it, and then put it on. If the time is sufficient, you can clean up other parts. Dust, this is to help the computer to dissipate heat.
Through the above three methods, it should be able to solve the problem of no signal on the display.