krauser126 :
No.....I didnt even install os...this is me running PC for first time even though I tested it yesterday and it worked
Press the button and hold it in for around 3 seconds. I'm not 100% sure why they design the switch like this, but common sense tells me that it's a safety feature that keeps you from bumping the power button accidentally, potentially losing a LOT of unsaved data and/or causing damage to the computer. For instance, shutting down your machine in the middle of a BIOS update can really muck things up.
See if holding it in for a few seconds does the job.