Replaceable Units, or CRUs. Lenovo provides documentation with instructions when it is appropriate for customers to install options or replace CRUs. You must closely follow all instructions when installing or replacing parts. The Off state of a power indicator does not necessarily mean that voltage levels inside a product are zero. Before you remove the covers from a product equipped with a power cord, always make sure that the power is turned off and that the product is unplugged from any power source. If you have any questions or concerns, contact the Customer Support Center.

Although there are no moving parts in your computer after the power cord has been disconnected, the following warnings are required for your safety.

CAUTION:

Hazardous moving parts. Keep fingers and other body parts away.

CAUTION:

Before replacing any CRUs, turn off the computer and wait three to five minutes to let the computer cool before opening the cover.

Power cords and power adapters

DANGER

Use only the power cords and power adapters supplied by the product manufacturer.

The power cords shall be safety approved. For Germany, it shall be H05VV-F, 3G, 0.75 mm2, or better. For other countries, the suitable types shall be used accordingly.

Never wrap a power cord around a power adapter or other object. Doing so can stress the cord in ways that can cause the cord to fray, crack, or crimp. This can present a safety hazard.

Always route power cords so that they will not be walked on, tripped over, or pinched by objects.

Protect power cord and power adapters from liquids. For instance, do not leave your power cord or power adapter near sinks, tubs, toilets, or on floors that are cleaned with liquid cleansers. Liquids can cause a short circuit, particularly if the power cord or power adapter has been stressed by misuse. Liquids also can cause gradual corrosion of power cord terminals and/or the connector terminals on a power adapter, which can eventually result in overheating.

Always connect power cords and signal cables in the correct order and ensure that all power cord connectors are securely and completely plugged into receptacles.

Do not use any power adapter that shows corrosion at the AC input pins or shows signs of overheating (such as deformed plastic) at the AC input or anywhere on the power adapter.

Do not use any power cords where the electrical contacts on either end show signs of corrosion or overheating or where the power cord appears to have been damaged in any way.

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Lenovo 3444CUU manual Power cords and power adapters
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3444CUU specifications

The Lenovo 3444CUU is a versatile laptop designed to cater to a wide range of user needs, from business professionals to students. This model stands out due to its solid build quality, innovative technologies, and user-friendly features.

At the heart of the Lenovo 3444CUU lies an efficient Intel processor, designed to handle everyday computing tasks with ease. The inclusion of powerful integrated graphics ensures smooth performance during both productivity tasks and casual gaming sessions. With an ample amount of RAM, users can multitask seamlessly, switching between applications without experiencing any lag.

One of the most significant highlights of the Lenovo 3444CUU is its stunning display. The laptop is equipped with a high-definition screen that delivers vibrant colors and sharp visuals, making it ideal for watching movies, editing photos, or presenting slideshows. The anti-glare technology incorporated into the display reduces reflections, enabling comfortable viewing in various lighting conditions.

The design of the Lenovo 3444CUU emphasizes portability and convenience. It boasts a lightweight chassis, allowing users to easily carry it along for meetings or classes. The ergonomic keyboard provides a comfortable typing experience, complete with responsive keys that enhance productivity during long typing sessions. Additionally, the touchpad is accurate and supports multi-touch gestures for easy navigation.

Connectivity is a strong point for the Lenovo 3444CUU. It features multiple USB ports, an HDMI output, and an SD card reader, ensuring compatibility with a wide range of peripherals and devices. Wi-Fi and Bluetooth capabilities provide reliable wireless connectivity for seamless internet access and peripheral connections.

The battery life of the Lenovo 3444CUU is commendable, lasting throughout a full day of work or study on a single charge. This feature is particularly beneficial for users who are frequently on-the-go, eliminating the need to search for power outlets.

In terms of security, the Lenovo 3444CUU includes advanced features like a fingerprint reader and a secure BIOS, providing users with peace of mind. These technologies help protect sensitive data and ensure that only authorized users have access to the device.

Overall, the Lenovo 3444CUU stands out as a reliable, efficient, and feature-rich laptop suitable for various tasks, making it an excellent choice for anyone in need of a dependable computing solution. Its blend of performance, portability, and security features caters to the demands of modern users, making it a noteworthy addition to Lenovo’s diverse laptop lineup.
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