8. Slide the new card reader into the drive bay until it snaps into position.

Figure 24. Installing the card reader

9.Reconnect the card reader cable to the front USB connector on the system board. See “Locating parts on the system board” on page 12.

10.Reinstall the front bezel. See “Removing and reinstalling the front bezel” on page 35.

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.

Replacing the power supply assembly

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 replace the power supply assembly.

Although there are no moving parts in your computer after the power cord has been disconnected, the following warnings are required for your safety and proper Underwriters Laboratories (UL) certification.

44ThinkStation User Guide

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Lenovo 2552, 2551, 2555, 2554, 2553 manual Replacing the power supply assembly, Installing the card reader

2552, 2555, 2553, 2554, 2551 specifications

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