Chapter 4. Troubleshooting

„Sleep or Hibernation Problems

The computer enters sleep mode unexpectedly.

If the processor overheats, the computer automatically enters sleep mode to allow the computer to cool and to protect the processor and other internal components. Check the settings for sleep mode.

The computer enters sleep mode (the sleep indicator turns on) immediately after Power-on self-test (POST).

Make sure that:

ƒThe battery is charged.

ƒThe operating temperature is within the acceptable range. See “Specifications” on page 113.

If the battery is charged and the temperature is within range, have the computer serviced.

The critical low-battery error message appears, and the computer immediately turns off.

The battery power is getting low. Connect the AC adapter to the computer, or replace the battery with a fully charged one.

The computer does not return from sleep mode, or the sleep indicator stays on and the computer does not work.

If the computer does not return from sleep mode, it may have entered hibernation mode automatically because the battery is depleted. Check the sleep indicator.

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Lenovo U330 manual „ Sleep or Hibernation Problems, Computer enters sleep mode unexpectedly
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U330 specifications

The Lenovo U330 is a versatile and stylish laptop designed to meet the needs of both professionals and students. Released as part of Lenovo's U-series, the U330 strikes a balance between performance, portability, and aesthetics. Its sleek, lightweight body makes it an ideal companion for those on the go.

One of the standout features of the Lenovo U330 is its ultra-slim design. Weighing just about 3.5 pounds and measuring under an inch in thickness, it can easily fit into a backpack without adding extra bulk. This portability is complemented by its premium aluminum chassis, which not only enhances durability but also gives the laptop a modern and sophisticated look.

Performance-wise, the U330 is powered by Intel's Core i5 or i7 processors, offering robust computing capabilities for multitasking and running demanding applications. The inclusion of up to 8GB of RAM ensures smooth operation, whether you're managing multiple browser tabs or using resource-intensive software. Additionally, the laptop supports SSD storage options, significantly improving boot times and file access speeds compared to traditional hard drives.

The U330 features a 13.3-inch Full HD display, delivering vibrant colors and sharp details. The anti-glare technology minimizes reflections, making it comfortable for extended usage, whether indoors or outdoors. The laptop also comes with integrated Intel HD Graphics, which provides decent performance for casual gaming and multimedia tasks.

For connectivity, Lenovo has equipped the U330 with a variety of ports, including USB 3.0, HDMI, and a headphone/microphone combo jack. The presence of Bluetooth and Wi-Fi ensures users can easily connect to various devices and the internet.

Lenovo's innovative technology enhances the user experience significantly. The U330 features the OneKey Recovery system, which allows for quick and easy backup and recovery of the system. Additionally, the laptop boasts an ergonomic keyboard with well-spaced keys for comfortable typing, along with an intuitive trackpad for easy navigation.

In summary, the Lenovo U330 is an exceptional laptop tailored for individuals who value performance and style. Its combination of a lightweight design, powerful processors, vibrant display, and useful features make it a compelling choice for those seeking a reliable computing solution. Whether for work, study, or entertainment, the U330 delivers on all fronts, proving to be a worthy investment.
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