Lenovo ThinkStation 2551, Hardware Maintenance Manual, Page: 128 / 188

required connector. Then, use the instructions that come with the option to help you make the connection
and install any software or device drivers that are required for the option.
Opening the computer cover
Attention:
Do not open your computer or attempt any repair before reading and understanding “Important Safety Information”
on page 1.
This section provides instructions on how to open the computer cover.
CAUTION:
Turn off the computer and wait three to five minutes to let the computer cool before removing the
computer cover.
To open the computer cover, do the following:
1. Remove any media from the drives and turn off all attached devices and the computer.
2. Disconnect all power cords from electrical outlets.
3. Disconnect the power cords, Input/Output cables, and any other cables that are connected to the
computer. See “Locating connectors, controls, and indicators on the front of your computer” on page
79 and “Locating connectors on the rear of your computer” on page 80.
4. Remove any locking device that secures the computer cover, such as an integrated cable lock.
5. Press the cover-release button at the rear of the computer and pivot the computer cover upward.
Figure 53. Opening the computer cover
Removing and reinstalling the front bezel
Attention:
Do not open your computer or attempt any repair before reading and understanding “Important Safety Information”
on page 1.
This section provides instructions on how to remove and reinstall the front bezel.
To remove and reinstall the front bezel, do the following:
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ThinkStation Hardware Maintenance Manual