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Before working inside your computer
To avoid damaging your computer, perform the following steps before you begin working inside the computer.
1
Ensure that your work surface is flat and clean to prevent the computer cover from being scratched.
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 network cables from the computer.
4
Disconnect your computer and all attached devices from their electrical outlets.
5
Press and hold the power button while the computer is unplugged to ground the system board.
6
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.
Turning off your computer
After working inside your computer
After you complete any replacement procedure, ensure that you connect any external devices, cards, and cables before turning
on your computer.
1
Replace the cover.
CAUTION:
To connect a network cable, first plug the cable into the network device and then plug it into the
computer.
2
Connect any telephone or network cables to your computer.
3
Connect your computer and all attached devices to their electrical outlets.
4
Turn on your computer.
5
If required, verify that the computer works correctly by running Dell Diagnostics.
Working on your computer
Turning off your
computer).
Working on your computer
1
5