Manuals / Lenovo / Computer Equipment / Personal Computer

Lenovo 3282, 3029, 3054, 5498, 5474, 5384, 5554, 5450, 3652, 3544 Replacing the power supply assembly

Models: 3139 3652 5474 3219 5498 3029 3054 5554 3349 3246 5450 3282 3421 5384 3544

1 78
Download 78 pages 27.14 Kb
Page 32
Image 32

Replacing the power supply assembly

Attention:

Do not open your computer or attempt any repair before reading and understanding the “Important safety information” in the ThinkCentre Safety and Warranty Guide that came with your computer. To obtain a copy of the ThinkCentre Safety and Warranty Guide, go to:

http://www.lenovo.com/support

This section provides instructions on how to replace the power supply assembly.

To replace the power supply assembly, do the following:

1.Turn off the computer and disconnect all power cords from electrical outlets.

2.Remove the computer cover. See “Removing the computer cover” on page 14.

3.Disconnect the power supply assembly cables from the system board and all drives. See “Locating parts on the system board” on page 10.

4.Release the power supply assembly cables from the cable clips and ties in the chassis.

5.Lay the computer on its side and remove the four screws at the rear of the chassis that secure the power supply assembly.

Figure 20. Removing the screws for the power supply assembly

6.Slide the power supply assembly to the front of the computer and then lift it out of the chassis.

7.Ensure that the new power supply assembly is the correct replacement. If your new power supply assembly has a voltage-selection switch, ensure that you set the voltage-selection switch to match the voltage available at your electrical outlet. If necessary, use a ballpoint pen to slide the voltage-selection switch to a different position.

•If the voltage supply range in your local country or region is 100–127 V ac, set the switch to 115 V.

•If the voltage supply range in your local country or region is 200–240 V ac, set the switch to 230 V.

8.Install the new power supply assembly into the chassis so that the screw holes in the power supply assembly align with those in the chassis.

9.Install and tighten the four screws to secure the power supply assembly.

24ThinkCentre User Guide

Page 31 Page 33
Page 32
Image 32
Lenovo 3282, 3029, 3054, 5498, 5474 Replacing the power supply assembly, Removing the screws for the power supply assembly
Page 31 Page 33

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.