You can check the little indicator light on the notebook.
If the hard drive was dead, that wouldn't cause the display to go blank.
If your problem was with your hard
drive, you would still get the BIOS screen and then a message about
being unable to load an operating system. So, I doubt if that is the
My guess is that you have a relatively serious motherboard, video card, memory, or CPU problem.
When you turn it on, does it beep ? If so, how many times ? You can translate these beep codes at: http://networking.ringofsaturn.com/PC/beep.php