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 Front Cover:
Press down on the front cover release latch.
Keep the latch pushed down, and pull the front cover in an outward direction to remove it from the computer.
Removing the Hard Drive:
Pull the clasp of the hard-drive bracket in an outward direction.
Slide the hard-drive bracket in an outward direction to remove it from the computer.
If a second hard drive is installed, Pull the clasp of the second hard-drive bracket in an outward direction.
Slide the second hard-drive bracket in an outward direction to remove it from the computer.
Flex the hard-drive bracket on both sides to loosen the hard drive.
Lift the hard drive in an upward direction to remove it from the hard-drive bracket.
If a 2.5 inch hard drive is installed , Push the retention clips in an outward direction and lift up the drive to remove it from the 3.5 inch hard-drive caddy.
Installing the Hard Drive:
If a 2.5–inch or 3.5–inch hard drive is installed, place the hard drive to the hard-drive caddy until it snaps to its place.
Flex the hard-drive bracket and then insert the hard drive into the bracket.
Slide the hard-drive bracket into its compartment and close the hard-drive bracket clasp.
Installing the Front Cover:
Place the front cover on the computer.
Press down on the front cover till it clicks into place.
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 Dell Diagnostics.