Contents

Finding Information

5

Setting Up Your Computer

9

About Your Computer

14

Front View

15

Back View

18

Back Panel Connectors

19

Inside View

21

System Board Components

22

Locating Your User’s Guide

24

Removing the Computer Cover

24

Computer Stand

26

Attaching the Computer Stand

27

Removing the Computer Stand

28

Caring for Your Computer

29

Solving Problems

29

Troubleshooting Tips

29

Resolving Software and Hardware Incompatibilities

29

Using Microsoft® Windows® XP System Restore

30

Using the Last Known Good Configuration

31

Dell Diagnostics

32

Before you start testing

33

Beep Codes

33

Error Messages

35

Diagnostic Lights

35

Diagnostic Light Codes Before POST

35

Diagnostic Light Codes During POST

37

Frequently Asked Questions

41

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Contents

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Dell D490 manual Contents