Dell Precision M4300 Service Manual page 5

1. Ensure that the work surface is flat and clean to prevent the computer cover from being scratched.
2. Turn off your computer (see
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.
3. Disconnect any telephone, network, and USB cables from the computer.
4. Disconnect your computer and all attached devices from their electrical outlets.
5. Turn over the computer.
NOTICE: To avoid damaging the system board, you must remove the main battery before you service the computer.
6. Remove the battery.
a. Slide the battery-bay release latch on the bottom of the computer toward the back of the computer until the latch is engaged.
b. Grasp the battery by the battery tab and slide the battery horizontally toward the side of the computer.
c. Lift to remove the battery from the bay.
1 battery 2 battery-bay release latch
7. Press the power button to ground the system board.
8. Remove any installed ExpressCards, PC Cards, or smart cards from the computer
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Turning Off Your Computer).
Using Cards.