Installing the Hard Drive

1.Connect the hard drive cable.

2.Place the hard drive inside the computer.

3.Tighten the screw that secures the hard drive to the computer.

4.Install:

a.Battery

b.Base Cover

5.Follow the procedures in After Working Inside Your computer.

Removing the WLAN Card

1.Follow the procedures in Before Working Inside Your Computer.

2.Remove:

a.Base Cover

b.Battery

3.Perform the following steps as shown in the illustration:

a.Loosen the screw that secures the WLAN card to the computer [1].

b.Lift the tab in the direction indicated [2].

c.Disconnect the cables that connect the WLAN card to the computer [3].

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Dell 3550 owner manual Installing the Hard Drive, Removing the Wlan Card