As asked, "do you see any of the standard boot stuff on the monitor"? If not, you most likely have a hardware problem. Do you hear any beeps at startup? Are the fans working, LEDs lighting up? Have you made any hardware changes?
The information on Computing.Net is the opinions of its users. Such
opinions may not be accurate and they are to be used at your own risk.
Computing.Net cannot verify the validity of the statements made on this
site. Computing.Net and Purch hereby disclaim all responsibility
and liability for the content of Computing.Net and its accuracy.