Dell Alienware M11x R3 (Early 2011) - Manual (Page 34)

CHAPTER 2: GETTING TO KNOW YOUR LAPTOP
32
Power Button
You can program this button to perform actions like shutting down the operating system or
entering the standby mode. For details on how to program this button, see
Power Options in
the control panel of Microsoft Windows operating system.
The power button is located in the center of the hinge cover. For the exact location, see
“Computer Base and Keyboard Features” on page 30.
The color of the AlienHead rim indicates the power status. The color indicating the power
status can be changed through the AlienFX software.