I've had an Alienware 17 for about a year now with no problems. A couple of days ago I installed a secondary HDD in it from my old laptop. The old laptop would boot and shut down in the three seconds after turning on. After putting that laptop's HDD in my Alienware, the same thing is now happening to it. I'll press the power button, the laptop will light up, the fans will start, and then the laptop will shut down followed by a clicking sound. I have already removed the secondary HDD to see if it would fix the problem, and I had no progress. I have no idea what's happening, so any help would be nice. Thanks.