To avoid damaging your computer, perform the following steps before you begin working inside the computer.
Ensure that your work surface is flat and clean to prevent the computer cover from being scratched.
Turn off your computer (see Turning Off Your Computer).
CAUTION: To disconnect a network cable, first unplug the cable from your computer and then unplug the cable from the network device.
Disconnect all network cables from the computer.
Disconnect your computer and all attached devices from their electrical outlets.
Press and hold the power button while the computer is unplugged to ground the system board.
Remove the cover.
CAUTION: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the metal at the back of the computer. While you work, periodically touch an unpainted metal surface to dissipate static electricity, which could harm internal components.
Removing the Coin-Cell Battery:
Remove:
a. cover
b. front bezel
c. drive cage
d. heat sink
Carefully press the release latch away from the battery. The battery will pop out from the socket, lift it out of the computer.
Installing the Coin-Cell Battery:
Place the coin-cell battery into its slot on the system board.
Press the coin-cell battery downward until the release latch springs back into place and secures it.
Install the heat sink.
Install the drive cage.
Install the front bezel.
Install the cover.
Follow the procedures in After Working Inside Your Computer.
After you complete any replacement procedure, ensure you connect any external devices, cards, and cables before turning on your computer.
Replace the cover.
CAUTION: To connect a network cable, first plug the cable into the network device and then plug it into the computer.
Connect any telephone or network cables to your computer.
Connect your computer and all attached devices to their electrical outlets.
Turn on your computer.
If required, verify that the computer works correctly by running the Dell Diagnostics.
