I press the power button and nothing happens. I moved it to my work bench and its a good plug because I use my diagnositcs computer there. Everything is the way it should be internaly, I am unsure if there was a power surge that kill it or even if the power supply is good. Since you do not mention if this is a new computer I will address this as a computer which was functioning normally and not it will not power up. If not please send me an email.
Many computers have a switch at the back of the computer as well as the power button on the front.
The power switch on the front of many computers are often very delicate and can be prone to wear out. Many newer computers use a soft switch which needs to be pressed and held for a few seconds before the computer turns on. Things to check for a possible power supply failure is smell of buring electronics, fan in the back not turning. Try switching the power cord. I have found an number of these to defective causing the power to fail with a slight movement of the computer.