Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual

General safety

Follow these rules below to ensure general safety:

•• Observe a good housekeeping in the area where the machines are put during and after the maintenance.

•• When lifting any heavy object:

1.Make sure that you can stand safely without slipping.

2.Distribute the weight of the object equally between your feet.

3.Use a slow lifting force. Never move suddenly or twist when you attempt to lift it.

4.Lift it by standing or pushing up with your leg muscles; this action could avoid the strain from the muscles in your back. Do not attempt to lift any object that weighs more than 16 kg (35 lb) or that you think is too heavy for you.

•• Do not perform any action that causes hazards to the customer, or that makes the machine unsafe.

•• Before you start the machine, make sure that other service representatives and the customer are not in a hazardous position.

•• Place removed covers and other parts in a safe place, keeping them away from all personnel, while you are servicing the machine.

•• Keep your toolcase away from walk areas so that other people will not trip it over.

•• Do not wear loose clothing that can be trapped in the moving parts of the machine. Make sure that your sleeves are fastened or rolled up above your elbows. If your hair is long, fasten it.

•• Insert the ends of your necktie or scarf inside clothing or fasten it with the nonconductive clip, about 8 centimeters (3 inches) from the end.

•• Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for your clothing.

Attention: Metal objects are good electrical conductors.

•• Wear safety glasses when you are hammering, drilling, soldering, cutting wire, attaching springs, using solvents, or working in any other conditions that may be hazardous to your eyes.

•• After service, reinstall all safety shields, guards, labels, and ground wires. Replace any safety device that is worn or defective.

•• Reinstall all covers correctly before returning the machine to the customer.

•• Fan louvers on the machine help to prevent the overheating of internal components. Do not obstruct fan louvers or cover them with labels or stickers.

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Lenovo U400, U300S manual General safety
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U300S, U400 specifications

Lenovo has made significant strides in the market for ultrabooks with its U400 and U300S models, which combine style, performance, and portability. These laptops cater to users seeking powerful devices without compromising on design or usability.

The Lenovo U400 is a versatile ultrabook that excels in performance and efficiency. It features a 14-inch display with a resolution of 1366 x 768 pixels, providing clear visuals and an enjoyable viewing experience. The U400 is powered by Intel's second generation Core processors, which ensures fast computing speeds and responsiveness for both work and multimedia tasks. It also integrates dedicated NVIDIA graphics, which enhances gaming experiences and accelerates tasks that require graphical processing.

On the other hand, the Lenovo U300S takes a more premium approach with its ultra-slim design. This ultrabook sports a 13.3-inch display, also with a resolution of 1366 x 768 pixels, making it lightweight and easy to carry without sacrificing screen quality. The U300S is equipped with Intel’s Ivy Bridge processors, marking an advancement in speed and power efficiency over its predecessor. Furthermore, the laptop is designed with a unibody aluminum chassis, providing durability while maintaining an elegant aesthetic.

Both models support Lenovo Enhanced Experience, which features RapidBoot technology for quick system startup and Lenovo Cloud Services, allowing seamless integration with cloud storage solutions. This provides users the convenience of accessing their data anywhere at any time.

Battery life is another crucial feature of the U400 and U300S. The U400 boasts up to 6 hours of battery life, making it suitable for users on the go. Meanwhile, the U300S offers even more longevity, with up to 8 hours of use on a single charge, further emphasizing its suitability for travel and mobility.

In terms of connectivity, both laptops offer USB 3.0 ports, HDMI output, and Wi-Fi capability, ensuring users stay connected and have options for high-speed data transfer and display output.

Overall, Lenovo's U400 and U300S models represent a blend of advanced technology, stylish design, and practicality, making them strong contenders in the ultrabook market. Their performance, coupled with Lenovo's innovative features, showcases the brand's commitment to delivering highly functional and appealing laptops for a range of users.
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