Video card periodically does not display an image on the monitor?

Question

Video cards

Hello, I have this question: when you start the computer, everything works but there is no image on the monitor, this is 100% connected with the video card, on the built-in everything works and turns on instantly, the computer is cleaned and lubricated, I cleaned and clean the contacts, it sometimes starts up 1 time for 30 inclusions and the video card, and it works as if nothing had happened, it used to turn on for 2 and 3 days in a row (5 times), and then again, it does not display the image, and so for a long time, in general, a very strange thing, it is clearly working, and The computer is working, but something is preventing it from starting normally ..?

Answer 1

Very often strange irregular problems with the computer - the cause is a weak or problematic power supply (it can also be a problem with the power supply circuit of the video card, but this is more difficult to diagnose and treat)

Answer 2

It was similar. Vidyuha for some reason did not have time to start at the time of the start of the computer.
Turn on the computer - the BIOS beeps with a beeper - press Reset - the computer and the vidyuha start normally.
Or replace the vidyuhu.