Certificate of Authenticity label

To remove the wireless LAN card for repair or replacement, see “Replacing a wireless LAN card” on page 76.

To remove the wireless WAN card for repair or replacement, see “Replacing a wireless WAN card ” on page 78.

Note: Use only Lenovo-authorized wireless communication card for the computer. If you install an unauthorized wireless communication card that is not approved for use in your computer, an error message will be displayed and the computer will beep when you turn on the computer.

The Certificate of Authenticity label is provided on models that are licensed to use a Windows 7 operating system. The licensed Windows version and product key associated with the computer are printed on this label. Record this information and keep it in a safe place. You might need these numbers to start your computer or reinstall the Windows 7 operating system. Depending on the model, the Certificate of Authenticity label can be on the computer cover, under the battery, or on the power adapter.

For more information about the Certificate of Authenticity label, go to:

http://www.microsoft.com/en-us/howtotell/Hardware.aspx

The following figure shows the location of the Certificate of Authenticity label of your computer:

Genuine Microsoft label

The Genuine Microsoft label is provided on models that are licensed to use a Windows 8 or Windows 8.1 operating system. The version of the operating system is printed on the label. If your computer model is licensed to use the Windows 8 Pro or Windows 8.1 Pro operating system, that license also permits you to

10User Guide

S540 specifications

The Lenovo S540 is a sophisticated laptop designed for both performance and portability, making it an excellent choice for professionals and students alike. This device showcases a blend of modern aesthetics and powerful functionality, representing a notable entry in Lenovo's versatile lineup.

At the heart of the Lenovo S540 lies an Intel Core processor, available in multiple configurations, enabling users to select the level of performance that best suits their needs. These processors deliver exceptional speed and responsiveness, allowing users to seamlessly handle demanding tasks such as video editing, graphic design, or multitasking across various applications.

One of the standout features of the S540 is its stunning display. The laptop offers a Full HD display with vibrant colors and sharp details, whether you are watching movies, editing photos, or simply browsing the web. The narrow bezels around the screen enhance the viewing experience, making it an immersive option for both work and entertainment.

In terms of design, the Lenovo S540 boasts a sleek and lightweight chassis, making it ideal for on-the-go usage. Weighing in at just over 3.5 pounds, it easily fits into backpacks or briefcases, perfect for commuters or students moving between classes. The premium build quality ensures that it not only looks good but can also withstand daily wear and tear.

Battery life is another highlight, with the S540 offering impressive longevity that can last up to 12 hours on a single charge. This capability is crucial for users who may not have immediate access to a power source while out and about. Furthermore, it features rapid charge technology allowing users to recharge the battery quickly when needed.

Connectivity options on the S540 are generous, including USB-C, USB 3.1, HDMI, and a headphone/microphone combo jack. These ports facilitate easy connection to a variety of devices and peripherals, enhancing the overall usability of the laptop.

The Lenovo S540 also makes considerable use of modern technologies such as Intelligent Cooling, which adjusts performance and efficiency based on usage patterns, and TrueBlock Privacy Shutter, providing users with physical protection for the webcam when not in use.

With its balance of style, performance, and innovative features, the Lenovo S540 stands out as a formidable option in the competitive landscape of ultrabooks, making it a prime choice for anyone in need of a reliable and capable laptop.

Lenovo S540 manual Certificate of Authenticity label, Genuine Microsoft label

Models: S540