(Redirected) Alienware is unresponsive and the power seems to fade in and out

I have an Alienware Aurora R3 of 2012 desktop computer running the updated Windows 7 which will randomly have issues (sometimes after 2 hours, sometimes after 5 minutes) where the keyboard and mouse stop working (although light on the keyboard remains lit, the light on the fades of the mouse in and out) , and I can hear one of the fans in the computer running upward and slowing down repeatedly.  The Alienhead also of the cycles of its normal color to yellow, then rehearsals, in sync with the fan turns at the top and bottom.  The computer does not seem to stay active with programs still running.

I tried to replace the power supply with a different dell power supply (exact same model) and after a few hours, the problem started again.

I blew all the dust out of the computer twice with no success.

I would appreciate any suggestions and help.  Thank you!

Better in this position in the Alienware owners Club Forum, here:

http://en.community.Dell.com/Owners-Club/Alienware/default.aspx

Bev.

Tags: Dell Desktop

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