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4. Select Yes in the Setup Confirmation window. The built-in battery is disabled and the computer turns off
automatically. Wait three to five minutes to let the computer cool.
Replace a CRU
Follow the replacement procedure to replace a CRU.
Base cover assembly
Prerequisite
Before you start, read Generic Safety and Compliance Notices and print the following instructions.
Note: Do not remove the base cover assembly when your computer is connected to ac power. Otherwise,
there might be a risk of short circuits.
Replacement procedure
1. Disable the built-in battery. See "Disable the built-in battery" on page 27.
2. Turn off the computer and disconnect the computer from ac power and all connected cables.
3. Close the computer display and turn over the computer.
4. Loosen the screws that secure the base cover assembly
shown
2
.
28
P1 Gen 3 / X1 Extreme Gen 3 User Guide
1
and remove the base cover assembly as
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