I got a Alienware m15x about a year ago, and about 8 months ago on startup it would make two incredibly loud beeps and a screen would show saying 'your charger cable is not the reccomended 150w originally shipped', even thought it is. It would only happen very rarely at first, but now its nearly every time. I don't mind just ignoring it, but if there is a quick fix it would be nice.
Check okorder Wish the Best.
Try going to the support site and seeing if there's a download called BIOS Flash or something similar. You might also try going into the BIOS yourself (It should say something like Press F2 to enter Setup) and looking around for anything out of the ordinary (as far as your knowledge extends.)
