I got unseen situation up to me.
My brother was playing with computer until computer freezed and after 3-4s restarted then
computer cannot start up because monitor is always black , its like no signal.
I conscious that is video card fault because its coolers started blow strongly
so i removed it than computer start up without any sounds.
I tryed to clean computer, and computer was 1 day without electrical power.
I removed video card then computer started without any sounds.(ofcourse without any screen because no vga)
When i put video card, collers of video card always blows strongly and computer shows always black screen.