The computer turns on but no display or beep.

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I got my old pc here from Pakistan. The case was damaged so I decided to move it to another case. I changed switched everything from my old to new case, the only thing new connected to the motherboard it the new cases power button and the usb wire. Anyway, I installed everything, my video card, fans and stuff and when I turn it on, there is no display or beep. I don’t know what is wrong. I checked the both RAM’s, everything is working. Do you think it could be the video card? I was thinking of removing it and starting it without it but then I thought it should atleast make the beeping noise and just not show the display but it doesn’t even beep so.

Any idea?

Please help.

Thanks!

I didn't find the right solution from the Internet.

References www.tomshardware.com/answers/id-1809176/computer-turns-display-beep.html

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