
Originally Posted by
jephree What is the make and model of the computer?
What happens with the case LED's when you power on?
Also some manufacturers have diagnostic LED's on the rear of the case.
Also do you hear any beeps?
Try booting without any RAM and see if it beeps.
Unplugging the computer and holding in the Power button for a few seconds should clear/ ground the motherboard. If the motherboard has an LED this should go out.
From this point clearing the CMOS might help. Are you familiar with that process on this machine?