recently my computer went off in a black out and now its all busted up. it just won't turn on. when its all plugged in ready to go the green light on the mother board is on but nothing happens when i press the power button to boot up. no sounds, no lights, no fan, nothin. please help me figure out what is wrong as i was quoted way more than i can afford right now and hope i can fix it myself. the damn technician would even tell me what the problem was.