•If you are installing a memory module, open the retaining clips of the memory slot into which you want to install the memory module.

Figure 16. Opening the retaining clips

7.Position the new memory module over the memory slot. Make sure that the notch 1 on the memory module aligns correctly with the slot key 2 on the system board. Push the memory module straight down into the slot until the retaining clips close.

Figure 17. Installing a memory module

8. Reinstall the PCI Express x16 graphics card if you have removed it.

What to do next:

•To work with another piece of hardware, go to the appropriate section.

•To complete the installation or replacement, go to “Completing the parts replacement” on page 61.

Installing or replacing the optical drive

Attention: Do not open your computer or attempt any repair before reading and understanding the “Important safety information” on page v.

This section provides instructions on how to install or replace the optical drive.

To install or replace an optical drive, do the following:

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

40ThinkStation User Guide

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Lenovo 2555, 2551, 2552, 2554, 2553 manual Installing or replacing the optical drive, Opening the retaining clips
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2552, 2555, 2553, 2554, 2551 specifications

Lenovo has a renowned history of delivering reliable and innovative technology solutions, with its 2550 series comprising the models 2551, 2552, 2553, 2554, and 2555 standing as significant entrants in the competitive PC landscape. These models cater to a diverse range of user needs, from everyday tasks to more specialized applications, reflecting Lenovo’s commitment to providing versatile computing options.

The Lenovo 2551 is designed with an emphasis on performance and efficiency. This model features an Intel processor that boasts robust processing power, making it ideal for multitasking and demanding applications. It is equipped with a high-resolution display, offering sharp and vivid visuals that enhance the user experience, whether for work or leisure.

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In summary, the Lenovo 2551, 2552, 2553, 2554, and 2555 each bring unique features and technologies that cater to various user needs. From robust performance and security to enhanced graphics and sustainability, this series embodies Lenovo’s commitment to providing cutting-edge solutions that enable users to thrive in a tech-driven world.
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