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Dell Inspirion M5040 オーナーズマニュアル
2. Turn off your computer. See
 
CAUTION:
To disconnect a network cable, first unplug the cable from your computer and then unplug the cable from the network device.
 
3. Disconnect all telephone or network cables from the computer.
 
4. Press and eject any installed cards from the 3-in-1 media card reader.
 
5. Disconnect your computer and all attached devices from their electrical outlets.
 
6. Disconnect all attached devices from your computer.
 
CAUTION:
To help prevent damage to the system board, remove the main battery, see
 
7. Remove the battery. See
Removing the
 
8. Turn the computer top-side up, open the display, and press the power button to ground the system board.
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Turning Off Your Computer
and all attached devices.
Battery.
Removing the
Battery, before working inside the computer.