Xbox 360 S will not power on

My Xbox 360 will no longer turn on. I'm not really sure why. last week i just went to turn it on and it does nothing. I've tried plugging it into another outlet, directly into the wall of three different outlets. I even borrowed a friends power cord
and tried that and the same thing. The box on the power cord shows a yellow light but never changes. I've tried hitting any of the buttons on the system and turning the controller on and none of them turn on the Box. Any ideas as to what i can do next?

:)

 

X Box 360 Slim Power supply

The power supplies used by the original Xbox 360 consoles are not compatible with the Xbox 360 S console. The Xbox 360 S console uses only a 135-watt power supply.

 

Xbox Slim Power Brick Red Light???? 4GB Power Cord on 250GB Console?

Hey there K1NGcLiFtOn!

Just to make sure I understand, was the old console an original white Xbox 360 console, and Elite, or an Xbox 360 S console?

We always recommend using the power supply that was designed for that style of console. For example: You can't use an Xbox 360 S power supply with an Xbox 360 E console.

So if your old Xbox 360 console is not an Xbox 360 S console, we suggest
not using the power supply from your new Xbox 360 S console with it.

I hope that helps clear things up! ^_^

 

The best resolution for this issue is to send your console for repair...

This is already a hardware problem since you've already tried isolating the issue with 2 different PSUs and tried a different outlet.

You can process a repair on
http://myservice.xbox.com