4. When the computer is already docked to the ThinkPad Ultrabase Series 3, you can start the computer.

Note: You can turn the key clockwise to lock it. Then, keep the security key in a safe place. Do not lose this key; otherwise, you will be unable to detach the computer from the ThinkPad Ultrabase Series 3.

Detaching a ThinkPad Ultrabase Series 3

Attention: Do not detach your computer from the ThinkPad Ultrabase Series 3 while the docking indicator of the ThinkPad Ultrabase Series 3 is blinking or on. Wait until the docking indicator turns off. Detaching while the indicator is blinking or on causes the system to beep, and the computer may halt.

You can hot detach or warm detach the computer from the ThinkPad Ultrabase Series 3. Hot detach is detaching the computer from the ThinkPad Ultrabase Series 3 while in operating mode; warm detach is detaching the computer from the ThinkPad Ultrabase Series 3 while in sleep (standby) mode.

To perform a hot-detach, follow the steps below:

For Windows 7 and Windows Vista:

1.Click Start, and then press the right arrow button.

2.Select Undock.

3.Make sure that the docking indicator of the ThinkPad Ultrabase Series 3 is off.

For Windows XP:

1.Select the Undock Computer in the Start menu.

2.Make sure that the docking indicator of the ThinkPad Ultrabase Series 3 is off.

Note: Detaching the UltraBase suddenly while the computer is operating without performing the procedure above may cause the system to malfunction or hang.

To perform a warm-detach, press the eject request button of the ThinkPad Ultrabase Series 3. The system will then resume with an OK message. Make sure that the docking indicator of the ThinkPad Ultrabase Series 3 is off. The computer will re-enter sleep (standby) mode.

If you are hot-or warm-detaching the computer, make sure that

•the devices connected to USB, Serial, and Parallel connectors are not in use.

•the connection to a Modem or Ethernet port has ended.

Chapter 7. Enhancing your computer 153

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Lenovo X220 TABLET, X220I TABLET, X220-4287 manual Detaching a ThinkPad Ultrabase Series, For Windows 7 and Windows Vista
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4291BR6PC10B616, 42875TU, 428742U, 4294CTO, X220-4287 specifications

Lenovo's X220i, X220i Tablet, and their respective models such as 42872W5, 42912XU, and 429133U are part of the ThinkPad series, renowned for their reliability, performance, and innovative features tailored for both business and personal use. The X220i and X220i Tablet stand out in the ultrabook category, offering a perfect balance between portability and functionality, making them ideal for professionals on the go.

The X220i features a 12.5-inch display, which delivers vibrant visuals and clear text, ensuring users can work efficiently in various lighting conditions. The display options may include HD resolutions with anti-glare technology, minimizing reflections and enhancing visibility. The X220i Tablet takes portability a step further by incorporating touchscreen capabilities, allowing for a more interactive experience, which is particularly useful for presentations and drawing applications.

Under the hood, both models are powered by Intel Core processors, providing solid performance for multitasking and demanding applications. The X220i comes with options for up to 8GB of RAM, ensuring smooth operation even when handling multiple applications simultaneously. Storage options typically include fast SSDs, which not only enhance boot times but also improve file access speeds, contributing to overall responsiveness.

A key feature of the ThinkPad series is its exceptional build quality. The X220i and X220i Tablet are constructed with durable materials, including magnesium alloy and reinforced hinges, designed to withstand the rigors of daily use. Additionally, they are tested against military specifications, ensuring reliability in challenging conditions.

Connectivity options are extensive, featuring USB 3.0 ports, a VGA port, and HDMI, allowing users to connect to various peripherals and external displays. Advanced wireless connectivity options such as Wi-Fi and Bluetooth enable seamless communication and file sharing.

Battery life is another area where the X220i series excels. The laptops are designed to last an extended period on a single charge, often exceeding 8 hours, making them suitable for long workdays without the need for a power outlet.

In conclusion, the Lenovo X220i, X220i Tablet, and their variants like 42872W5, 42912XU, and 429133U are exemplary devices that blend portability, performance, and durability. Ideal for professionals and students alike, these devices cater to a range of computing needs while maintaining a compact and lightweight profile.
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