Dell Inspiron M5040 (Mid 2011) User Manual
Page 11
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Before You Begin
11
6 Disconnect all attached devices from your computer.
CAUTION:
To help prevent damage to the system board, remove the main battery,
see "Removing the Battery" on page 13, before working inside the computer.
7 Remove the battery. See "Removing the Battery" on page 13.
8 Turn the computer top-side up, open the display, and press the power
button to ground the system board.
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