Lenovo BladeCenter HS23, Installation And User Manual

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Removing an optional expansion unit
Use these instructions to remove the optional expansion unit from the blade server.
To remove an optional expansion unit, complete the following steps:
1. Before you begin, read “Safety” on page v and “Installation guidelines” on
page 17.
2. If the blade server is installed in a BladeCenter unit, remove it (see “Removing
the blade server from the BladeCenter unit” on page 20 for instructions).
3. Carefully lay the blade server on a flat, static-protective surface, with the cover
side up.
4. Remove the blade server cover, if one is installed (see “Removing the blade
server cover” on page 21 for instructions).
5. Remove the expansion unit:
a. If the expansion unit has an extraction device, use the extraction device to
disengage the expansion unit from the blade server. These extraction
devices can be of several types, including thumbscrews or levers. See the
instructions provided with the expansion unit for detailed instructions for
removing the expansion unit.
b. If the expansion unit does not have an extraction device, press the blade
server cover release on each side of the blade server and lift the expansion
unit from the blade server.
c. Rotate the expansion unit open; then, lift the expansion unit from the blade
server.
6.
If you are instructed to return the expansion unit, remove from it any options
that you have installed; then, follow all packaging instructions, and use any
packaging materials for shipping that are supplied to you.
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BladeCenter HS23 Types 7875 and 1929: Installation and User's Guide