Vaio will not boot

Hey, the other day I booted up my computer to do some video editing. This is the only computer i own that is powerful enough to handle the large files and processing that i conduct while editing my Videos. Anyway, the other day I turned the computer on and nothing happened. The boot ‘beep’ did not sound and the screen remained blank. I am worried that the Processor might be dead. Is there any way I can tell if it is the processor, hard drive, or any other peice of hardware, or is it software (bios that sort of thing) based? Any help will be fantastic.