3.Tighten the 2 hard drive screws (3).
4.Align the tabs (1) on the hard drive cover with the notches on the computer.
5.Close the cover (2).
6.Tighten the hard drive cover screws (3).
7.Replace the battery.
8.Connect AC power and external devices to the computer.
9.Turn on the computer.
36 Chapter 6 Maintenance