Dell Studio 1440 (Mid 2009) - Manual (Page 4)

1. Ensure that the work surface is flat and clean to prevent the computer cover from being scratched.
2. Turn off your computer (see Turning Off Your Computer ).
3. If the computer is connected to a docking device (docked), undock it. See the documentation that came with your docking device for instructions.
4. Disconnect all telephone or network cables from the computer.
5. Press and eject any installed cards from the ExpressCard slot or the 8-in-1 Media Card Reader.
6. Disconnect your computer and all attached devices from their electrical outlets.
7. Remove the battery (see Removing the Battery ).
8. Turn the computer top-side up, open the display, and press the power button to ground the system board.
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CAUTION: To disconnect a network cable, first unplug the cable from your computer and then unplug the cable from the network device.
CAUTION: To help prevent damage to the system board, remove the main battery (see Removing the Battery ) before working inside the
computer.