DANGER

Connect and disconnect cables as described in the following procedures when installing, moving, or opening covers on this product or attached devices.

To connect:

1.Turn everything OFF.

2.First, attach all cables to devices.

3.Attach signal cables to connectors.

4.Attach power cords to outlets.

5.Turn devices ON.

To disconnect:

1.Turn everything OFF.

2.First, remove power cords from outlets.

3.Remove signal cables from connectors.

4.Remove all cables from devices.

The power cord must be disconnected from the wall outlet or receptacle before installing all other electrical cables connected to the computer.

The power cord may be reconnected to the wall outlet or receptacle only after all other electrical cables have been connected to the computer.

Liquid crystal display (LCD) notice

CAUTION:

The LCD is made of glass, and rough handling or dropping the computer can cause the LCD to break. If the LCD breaks and the internal fluid gets into your eyes or on your hands, immediately wash the affected areas with water for at least 15 minutes; if any symptoms are present after washing, get medical care.

Note: For products with mercury-containing fluorescent lamps (for example, non-LED), the Liquid crystal display (LCD) contains mercury; dispose of according to local, state, or federal laws.

Using headphones or earphones

CAUTION:

Excessive sound pressure from earphones and headphones can cause hearing loss. Adjustment of the equalizer to maximum increases the earphone and headphone output voltage and the sound pressure level. Therefore, to protect your hearing, adjust the equalizer to an appropriate level.

Excessive use of headphones or earphones for a long period of time at high volume can be dangerous if the output of the headphone or earphone connectors do not comply with specifications of EN 50332-2. The headphone output connector of your computer complies with EN 50332-2 Sub clause 7. This specification limits the computer’s maximum wide band true RMS output voltage to 150 mV. To help protect against hearing loss, ensure that the headphones or earphones you use also comply with EN 50332-2 (Clause 7 limits) for a wide band characteristic voltage of 75 mV. Using headphones that do not comply with EN 50332-2 can be dangerous due to excessive sound pressure levels.

If your Lenovo computer came with headphones or earphones in the package, as a set, the combination of the headphones or earphones and the computer already complies with the specifications of EN 50332-1. If different headphones or earphones are used, ensure that they comply with EN 50332-1 (Clause 6.5 Limitation Values). Using headphones that do not comply with EN 50332-1 can be dangerous due to excessive sound pressure levels.

xiiUser Guide

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Lenovo 3444GXU, X1, I53427U4GB, I53427U180SSD, 3444GZU manual Liquid crystal display LCD notice, Using headphones or earphones
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I53427U180SSD, I53427U4GB, X1, 3444GXU, 3444GZU specifications

Lenovo has established a reputation for delivering high-performance laptops suited for both personal and professional use. Among its notable offerings are the Lenovo 3444GZU and 3444GXU, as well as their flagship ThinkPad series, which includes models like the X1 and I53427U4GB, I53427U180SSD. Each of these models comes equipped with advanced technologies and features that cater to a wide range of user needs.

The Lenovo 3444GZU and 3444GXU are known for their robust build quality and portability. Both laptops are powered by the latest generation of Intel processors, delivering fast and reliable performance. With up to 8 GB of RAM, they can handle multitasking efficiently, allowing users to run multiple applications simultaneously without experiencing lag. Additionally, these models boast a high-resolution display that provides sharp visuals, making them ideal for watching videos or handling graphic-intensive tasks.

The ThinkPad X1 series exemplifies Lenovo's commitment to creating premium laptops designed for the business professional. Known for their exceptional keyboard comfort and durability, these laptops are equipped with features such as a lightweight carbon-fiber chassis, making them easy to carry. With powerful Intel processors and up to 16 GB of RAM, the X1 delivers outstanding performance for demanding applications. The high-definition display offers vibrant colors and excellent viewing angles, essential for presentations or creative work.

The I53427U4GB and I53427U180SSD models represent Lenovo's dedication to providing users with flexibility and speed. Featuring SSD storage, these laptops significantly reduce boot times and application loading, enhancing user experience. Both models offer ample connectivity options, including USB 3.0 ports, HDMI outputs, and support for Bluetooth, facilitating easy connection to various peripherals and devices.

Furthermore, Lenovo’s laptops come with robust security features such as fingerprint readers and TPM encryption technology, ensuring that user data remains protected. With long battery life, these devices are designed to support users on the go without the constant need to recharge.

In summary, the Lenovo 3444GZU, 3444GXU, X1, I53427U4GB, and I53427U180SSD represent a blend of performance, portability, and security, making them excellent choices for both everyday users and professionals in need of reliable computing solutions.
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