HP Pavilion Elite m9150f PC Desktop

HP Pavilion Elite m9150f PC. It's equipped with an Intel Core 2 Quad Processor Q6600 and 3072MB system memory. It has a 720GB hard drive and a DVD player. This PC includes a 15-in-1 card reader and TV remote infrared receiver.. Note : when turn on the screen doesn't come on. What exactly happened this desktop was in a foreign language when I press something the screen went blank. It was in working condition.