Boot up time my PC screen goes blank
My computer screen just goes blank each time I boot up. I have used an old power supply and a used hard disk that is in a good condition and had Windows 7 64-bit installed. All the other accessories are brand new. The computer turns on with no problem and everything in it like the fan seems to run efficiently but there is no display at all. I have even checked on the VGA card and it is perfectly working on other computers. What could the problem be? Please assist me fix this issue.








