My Intel imac  won't turn on

Hi! My intel Imac suddenly, and without apparent reason, shut down, and won't turn back on. When I press the power button, sometimes it makes a small noise, but then nothing happens. I have unplugged all the cables, and also tried resetting the SMC, and still nothing. I see some of you have had a similar problem, I don't know if any of you found out the reason why this happens. The computer is almost brand new (I've had it for 3 months) and up until now I had had no problem with it.
Thank you!
Nadia

You've (unfortunately) joined the growing list of users that are having problems with their iMac. Mine was purchased in September 2007 and I went through two bad ones before I finally kept one until last week.
Last week: the iMac totally died. It's at the Apple store getting the logic board and PSU replaced. Look through this forum and you'll see a number of other users with random reboots and dead iMacs.

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