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. For more information on CRUs, refer to Chapter 6 “Replacing devices” on page 115 for this product. 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.

DANGER

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.

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Lenovo 429040 manual Power cords and power adapters
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429040 specifications

The Lenovo 429040 is an innovative laptop model that caters to both business professionals and casual users alike, combining portability, performance, and design. This device is engineered to meet the demands of modern computing, making it a standout option in the competitive laptop market.

One of the main features of the Lenovo 429040 is its sleek and lightweight design. Weighing just around 3.5 pounds, it is incredibly portable, making it easy to carry for on-the-go professionals or students. The laptop sports a robust chassis made from durable materials, ensuring longevity while also maintaining a modern aesthetic. The design incorporates a high-resolution display, typically a Full HD IPS panel, which offers vibrant colors and wide viewing angles. This is perfect for both work presentations and multimedia consumption.

Under the hood, the Lenovo 429040 is equipped with powerful processing capabilities. It often comes with the latest Intel or AMD processors, providing the necessary power for multitasking and demanding applications. Coupled with significant RAM options, typically ranging from 8GB to 16GB, users can run multiple applications simultaneously without experiencing slowdown. This makes it ideal for tasks such as video editing, software development, and heavy browsing.

In terms of storage, the Lenovo 429040 generally features fast SSD options, enhancing overall system responsiveness and boot times. With storage capacities ranging from 256GB up to 1TB, users have ample space not only for their operating system but also for applications and personal files.

Moreover, the laptop incorporates advanced technologies such as Wi-Fi 6 for faster internet connectivity and Bluetooth compatibility for seamless wireless connections with peripherals. The battery life is another significant characteristic, often lasting up to 12 hours on a single charge, allowing users to work or enjoy media without constantly seeking power outlets.

The keyboard of the Lenovo 429040 is designed for comfort, featuring backlit keys that facilitate typing in low-light conditions, along with a responsive touchpad. Security features such as a fingerprint reader and optional AI-based security enhancements are additional highlights that ensure data protection.

Overall, the Lenovo 429040 stands out for its combination of style, performance, and practicality, making it a reliable choice for those looking for a capable laptop that can adapt to various usage scenarios. Whether for business tasks, educational purposes, or entertainment, it delivers a well-rounded experience.
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