Nothing from the screen. Hmm. How did you get here?
A blank screen can be a bad motherboard on the computer, a bad monitor, a dead hard drive ( you will see some messages but not boot into your software environment.
You can try a replugging all the plugs, checking the outlet with another electrical device, if you hit the caps lock key and see the light go on or off you know your computer is trying to work. Try restarting again.
Expert troubleshooting is a call away. (908) 531-4110