There is serious power failure that occurs repeatedly these days in my location, and this caused my PC to shut down suddenly as the electricity goes away(I use Desktop computer.) But when there was electricity, there was no problem, until today ,when it started making repeated rapid(really fast like 20 or 30 times per second) beeping noise( like just before detenaters explode in the movies) and never turning on. I have no lights on my keyboard, and the case has a backlight which has stayed on during the beeping. What is the problem and How can I fix it ?
I use Dell Optiplex 780 and windows 7. I really need help as soon as possible.