Lenovo 3057 Maintenance Manual page 100

Before you begin, print all the related instructions or ensure that you can view the PDF version on another
computer for reference.
Note: Depending on the model, your server might look slightly different from the illustrations in this topic.
To remove the server cover, do the following:
1. Remove all media from the drives. Then, turn off all attached devices and the server.
2. Disconnect all power cords from electrical outlets.
3. Disconnect the power cords, Input/Output (I/O) cables, and all other cables that are connected to
the server.
4. If the server is installed in a rack cabinet, remove the server from the rack cabinet and place it on a flat,
clean, and static-protective surface. See the Rack Installation Instructions that comes with the server.
5. Press the release button
Figure 43. Pressing the release button
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ThinkServer RD430 Hardware Maintenance Manual
1 in the direction as shown.