Dell Alienware M17x R2 (Early 2010) - Manual (Page 26)

26 CHAPTER 3: USING YOUR LAPTOP
Using the Integrated Camera
Turning the Camera On and Off
Press the key combination <Fn><F9> to switch on or switch off the camera. After
switching on the camera, you need to activate its function through the Microsoft
Windows operating system. In addition, you can also use Windows Movie Maker
to create, edit, and share videos.
Using the Wireless Control
The wireless control allows you to quickly turn all of your wireless radios
(Bluetooth ® and WLAN) off, such as when you are asked to disable all wireless
radios on an airplane flight. Gently touching this control one time turns all of your
radios off. Gently touching it again returns your wireless radios to their respective
states they were in before you touched the control the first time.
Battery Pack
Your laptop is equipped with a high-energy rechargeable lithium ion (Li-ion)
battery pack. Battery life will vary depending on your laptop configuration, model,
applications installed, power management settings, and features used. As with
all batteries, the maximum capacity of this battery will decrease with time and
usage.
The battery meter lights on the battery pack indicate the charge level of the
battery. When you press the battery meter once, the charge level lights illuminate.
Each of the five lights represent approximately 20% of the total battery charge.
For example, if four lights turn on, there is 80% of battery charge remaining and if
no lights turn on, there is no charge remaining in the battery.
Power Management
Understanding Power Consumption
In order to fully utilize the power of your battery, it would be a good idea for you
to spend some time acquiring a basic understanding of the power management
concept from your operating system.
You can use the power options in your operating system to configure the power
settings on your computer. The Microsoft ® Windows ® operating system installed
on your computer provides three default options:
• Balanced — Offers full performance when you need it and saves power
during periods of inactivity.
• Power Saver — Saves power on your computer by reducing system
performance to maximize the life of the computer and by reducing the
amount of energy consumed by your computer over its lifetime.
• High Performance — Provides the highest level of system performance
on your computer by adapting processor speed to your activity and by
maximizing system performance.