I have been using Alienware M17x for two years now and i have been facing this problem. The computer randomly freezes (sometime with the keyboard being responsive sometime the keyboard will not be resposive during the freeze), I tried alot of "solutions" and none worked for me, I tried updating drivers, reformating the laptop, cleaning it from the inside, updating everything i can update.
The freeze get is completely random, sometime it happens when I am running a game, sometime it happens when nothing is running at all, sometime it happens when i open the pc and the windows is starting, sometime it happens 10 times a day, sometime it never happens for a week, bottom line its just RANDOM!
I always run all my games with the LOWEST possible graphics and i still sometime have problems with FPS, I am not running heavy graphic games I am only running stuff like WoW and LoL thats it. Again just to make it clear, The crashes happens randomly they dont depend on a game or any program running, sometime they happen during writing my thesis on Word.
The Laptop usually after 1-3 mins from freezing comes back functional, but this really isnt what is expected from this laptop.
Any ideas? Does have things to do with the AC adapter? power supply?