Note: You can insert the disc into the optical drive when you are setting the startup device sequence. However, if you insert the disc into the optical drive when you have already entered the operating system, you need to restart the computer to access the diagnostic program.

3.Follow the instructions on the screen to select the diagnostic test you want to run. Note: For additional help, press the F1 key.

4.Remove the diagnostic disc from the optical drive when you complete the diagnostic process.

Cleaning an optical mouse

This section provides instructions on how to clean an optical mouse.

An optical mouse uses a light-emitting diode (LED) and an optical sensor to navigate the pointer. If the pointer on the screen does not move smoothly with the optical mouse, you might need to clean the mouse.

To clean an optical mouse, do the following:

1.Turn off your computer.

2.Disconnect the mouse cable from the computer.

3.Turn the mouse upside down to check the lens.

a.If there is a smudge on the lens, gently clean the area with a plain cotton-tipped swab.

b.If there is debris in the lens, gently blow the debris away from the area.

4.Check the surface on which you are using the mouse. If you have a very intricate picture or pattern beneath the mouse, it may be difficult for the digital signal processor (DSP) to determine changes in the mouse position.

5.Reconnect the mouse cable to the computer.

6.Turn your computer back on.

58ThinkCentre User Guide

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Lenovo 5554, 3029, 3054, 3282, 5498, 5474, 5384, 5450, 3652, 3544, 3421, 3349, 3139, 3246, 3219 manual Cleaning an optical mouse
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3139, 3652, 5474, 3219, 5498 specifications

Lenovo offers an impressive lineup of laptops that cater to a variety of users, with models like the Lenovo 3544, 5384, 3421, 3282, and 5450 standing out due to their unique features, technologies, and characteristics.

The Lenovo 3544 is designed for entry-level users and comes equipped with an AMD A6 processor, making it ideal for everyday tasks such as web browsing, document editing, and media consumption. With its 15.6-inch HD display, users can enjoy vibrant visuals, enhancing their viewing experience. The device also features integrated AMD Radeon graphics, providing decent performance for casual gaming and multimedia tasks. The laptop is lightweight and portable, making it suitable for students and professionals who need a reliable machine on the go.

Next, we have the Lenovo 5384, which is targeted at business professionals. This model boasts an Intel Core i5 processor, allowing for enhanced multitasking capabilities and performance. Its 14-inch FHD display presents sharp, clear images, making it ideal for presentations and conference calls. The laptop also offers excellent battery life, ensuring that professionals can work through their day without needing to search for an outlet. Additionally, it features robust security options, like a fingerprint reader and TPM (Trusted Platform Module), ensuring sensitive data remains protected.

The Lenovo 3421 model brings together versatility and performance. It features an Intel Core i7 processor paired with 16GB of RAM, catering to those who require higher performance for graphics-intensive tasks, such as video editing or software development. Its large storage options, including SSD and HDD combinations, provide ample space for applications and files. The 15.6-inch display provides a rich visual experience, while the backlit keyboard adds convenience for late-night work sessions.

The Lenovo 3282 model stands out for its lightweight design and longevity. An Intel Pentium processor powers this slim device, making it energy-efficient and perfect for casual users who prioritize portability. The full-sized keyboard ensures comfortable typing, while the bright, vibrant display contributes to an enjoyable user experience.

Finally, the Lenovo 5450 is a power-packed laptop that combines performance and portability. It features a Ryzen 7 processor, offering significant capabilities for both gaming and demanding applications. The device is equipped with a 15.6-inch Full HD display and discrete graphics options, ensuring smooth performance for gamers. The laptop also supports fast charging technology, which is particularly appealing to users with busy lifestyles.

In summary, Lenovo’s models—3544, 5384, 3421, 3282, and 5450—showcase a diverse range of features suited for various needs, from basic tasks to demanding applications. Each model incorporates advanced technology to ensure users enjoy a reliable and efficient computing experience.
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