Dell 5521, 3521 manual Contents

Models: 5521 3521

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Contents

1Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . 7

Turn Off Your Computer and Connected Devices . . . 7

Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . 7 Recommended Tools . . . . . . . . . . . . . . . . . . . . . . 8

2After Working Inside Your Computer. . . . . . . . 9

3Removing the Battery . . . . . . . . . . . . . . . . . . . 11

Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4Replacing the Battery . . . . . . . . . . . . . . . . . . . 13

Procedure

13

Postrequisites

13

5Removing the Memory Module(s) . . . . . . . . . 15

Prerequisites

15

Procedure

15

6Replacing the Memory Module(s). . . . . . . . . . 17

Procedure

17

Postrequisites

17

7Removing the Optical-Drive Assembly . . . . . 19

Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

8Replacing the Optical-Drive Assembly . . . . . 21

Procedure

21

Postrequisites

21

9Removing the Hard-Drive Assembly . . . . . . . 23

Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

10 Replacing the Hard-Drive Assembly. . . . . . . . 25

Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Postrequisites . . . . . . . . . . . . . . . . . . . . . . . . . . 25

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Dell 5521, 3521 manual Contents