[Prof_Noir]

I was using my machine as I normally do, and attempted to add a Wii to my netflix account. After following the screen prompts for the code, I set up the Wii and turned back to my iMac. It was off. Didn't remember turning it off. So I pressed the power button...Nothing.

Didn't panic, pulled speakers, usb and other peripherals from machine and tried again. Nothing. Pulled power cord and replugged.....went to another socket......then attempted to reset the pram ......still nothing.

Now I'm panicking. I have two iphone 4s and my iPad 2 associated with this machine. It is doing NOTHING!! Any advice?

I have an iMac Intel core duo 1.8 ghz. I have a 500 gb hard drive,2 Gb RAM, Snow Leopard.

[AKcrab]

You probably have a failed power supply (most likely) or a failed logic board.
Get it into a shop and have them figure out which one it is.

(You've tried all the basic troubleshooting that I would normally recommend, especially unplugging it from the wall. That resets the power management system.)

[Prof_Noir]

Thank you for your advice. I will take it to Apple in the morning. Will let you know results. Thanks again!

[Waragainstsleep]

If you can't hear a click or anything at all, then its 99% likely to be PSU.