Alienware x51 R2 does not boot up. Only dull white light on power button.

Hi,

Last night, I was using my Alienware x51 R2 when it suddenly shut down on me. When I restarted it, all I could see was a dull white light illuminate on the power button. I did go through some of the posts that talk about similar problems and the typical steps outlined as pre-checks before contacting support.

I tried them with no luck. Typically, when I start the system, I remember the fans spinning at full speed (audible) and a beep with the Alienware logo on the screen. Now, except for the light, I could not hear any audible fan sound nor the beep or see the logo on screen. I removed the side panel and started the system again. What I did notice was the fan starts spinning and then stops within a couple of seconds. It doesnt build up enough speed to be audible.

How do I go about? Any clue as to what the problem might be?

Thanks!