Dell Vostro 420 Manual de usuario

www.dell.com | support.dell.com

Dell™ Vostro™ 420/220/220s Service

Manual

Models: DCSCLF, DCSCMF, DCSCSF

Notes, Notices, and Cautions

NOTE: A NOTE indicates important information that helps you make better use of

your computer.

NOTICE: A NOTICE indicates either potential damage to hardware or loss of data

and tells you how to avoid the problem.

CAUTION: A CAUTION indicates potential for property damage, personal injury,

or death.

If you purchased a Dell™ n Series computer, any references in this document to

Microsoft

Windows

operating systems are not applicable.

____________________

Information in this document is subject to change without notice.

Reproduction of this material in any manner whatsoever without the written permission of Dell Inc.

is strictly forbidden.

Trademarks used in this text: Dell, the DELL logo, and Vo s t ro are trademarks of Dell Inc.; Intel is a

registered trademark of Intel Corporation in the U.S. and other countries; Microsoft, Windows,

Windows Vista, and the Windows Vista start button logo are either trademarks or registered trademarks

of Microsoft Corporation in the United States and/or other countries; Bluetooth is a registered

trademark owned by Bluetooth SIG, Inc., and is used by Dell under license.

Other trademarks and trade names may be used in this document to refer to either the entities claiming

the marks and names or their products. Dell Inc. disclaims any proprietary interest in trademarks and

trade names other than its own.

Models: DCSCLF, DCSCMF, DCSCSF

September 2009 Rev. A01

Contents 3

Contents

1 Troubleshooting. . . . . . . . . . . . . . . . . . . . . 9

Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Power Lights . . . . . . . . . . . . . . . . . . . . . 9

Beep Codes . . . . . . . . . . . . . . . . . . . . . 10

System Messages . . . . . . . . . . . . . . . . . 12

Hardware Troubleshooter . . . . . . . . . . . . . 12

Dell Diagnostics . . . . . . . . . . . . . . . . . . . . . 13

When to Use the Dell Diagnostics . . . . . . . . . 13

Starting the Dell Diagnostics From Your

Hard Drive . . . . . . . . . . . . . . . . . . . . . 13

Starting the Dell Diagnostics From the

Drivers and Utilities Disc . . . . . . . . . . . . . . 15

Dell Diagnostics Main Menu . . . . . . . . . . . . 16

Solving Problems . . . . . . . . . . . . . . . . . . . . 18

Battery Problems . . . . . . . . . . . . . . . . . . 19

Drive Problems . . . . . . . . . . . . . . . . . . . 19

Error Messages. . . . . . . . . . . . . . . . . . . 21

IEEE 1394 Device Problems. . . . . . . . . . . . . 21

Keyboard Problems. . . . . . . . . . . . . . . . . 22

Lockups and Software Problems . . . . . . . . . . 23

Memory Problems . . . . . . . . . . . . . . . . . 25

Mouse Problems . . . . . . . . . . . . . . . . . . 25

Network Problems . . . . . . . . . . . . . . . . . 26

Power Problems . . . . . . . . . . . . . . . . . . 27

Printer Problems . . . . . . . . . . . . . . . . . . 28

Scanner Problems . . . . . . . . . . . . . . . . . 29

4Contents

Sound and Speaker Problems . . . . . . . . . . . 30

Video and Monitor Problems . . . . . . . . . . . . 31

Dell Technical Update Service . . . . . . . . . . . . . 33

Dell Support Utility. . . . . . . . . . . . . . . . . . . . 33

Accessing the Dell Support Utility . . . . . . . . . 33

Clicking the Dell Support Icon . . . . . . . . . . . 33

Double-Clicking the Dell Support Icon . . . . . . . 34

2 Working on Your Computer . . . . . . . . . . 35

Recommended Tools . . . . . . . . . . . . . . . . . . . 35

Before Working on Your Computer . . . . . . . . . . . 35

Turning Off Your Computer . . . . . . . . . . . . . 36

Inside View of Your Computer . . . . . . . . . . . . . . 37

System Board Components. . . . . . . . . . . . . . . . 40

After Working on Your Computer . . . . . . . . . . . . 45

3 Computer Cover . . . . . . . . . . . . . . . . . . . 47

Removing the Computer Cover. . . . . . . . . . . . . . 47

Replacing the Computer Cover . . . . . . . . . . . . . 48

4 Bezel . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Removing the Bezel . . . . . . . . . . . . . . . . . . . 51

Replacing the Bezel . . . . . . . . . . . . . . . . . . . 53

Contents 5

5 Chassis Support Bracket. . . . . . . . . . . . . 55

Removing the Chassis Support Bracket. . . . . . . . . 55

Replacing the Chassis Support Bracket . . . . . . . . 57

6 PCI and PCI Express Cards . . . . . . . . . . . 59

Removing a PCI or PCI Express Card . . . . . . . . . . 59

Installing a PCI or PCI Express Card . . . . . . . . . . 60

Configuring Your Computer After Removing or

Installing a PCI or PCI Express Card . . . . . . . . . . 63

7Drives. . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Hard Drives. . . . . . . . . . . . . . . . . . . . . . . . 65

Removing a Hard Drive . . . . . . . . . . . . . . . 65

Replacing or Adding a Hard Drive . . . . . . . . . 69

Media Card Reader . . . . . . . . . . . . . . . . . . . 73

Removing a Media Card Reader . . . . . . . . . . 73

Replacing or Adding a Media Card Reader . . . . 77

Optical Drive . . . . . . . . . . . . . . . . . . . . . . . 80

Removing an Optical Drive . . . . . . . . . . . . . 80

Replacing or Adding an Optical Drive . . . . . . . 82

Removing a Drive Bay Break-Away Metal Plate . . . . 85

Vostro 420 and Vostro 220 . . . . . . . . . . . . . 85

Vostro 220s . . . . . . . . . . . . . . . . . . . . . 86

6Contents

8 I/O Panel . . . . . . . . . . . . . . . . . . . . . . . . 89

Removing the I/O Panel . . . . . . . . . . . . . . . . . 89

Replacing the I/O Panel . . . . . . . . . . . . . . . . . 91

9Fan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Removing the Chassis Fan . . . . . . . . . . . . . . . . 93

Replacing the Chassis Fan. . . . . . . . . . . . . . . . 97

10 Processor Heat Sink/Fan Assembly . . . 99

Removing the Processor Heat Sink/Fan Assembly . . . 99

Replacing the Processor Heat Sink/Fan

Assembly . . . . . . . . . . . . . . . . . . . . . . . . 101

11 Memory Module(s). . . . . . . . . . . . . . . . . 103

Removing Memory Modules . . . . . . . . . . . . . . 103

Replacing or Adding a Memory Module. . . . . . . . 104

12 Power Supply . . . . . . . . . . . . . . . . . . . . . 107

Removing the Power Supply. . . . . . . . . . . . . . 107

Replacing the Power Supply. . . . . . . . . . . . . . 109

DC Power Supply Connectors . . . . . . . . . . . . . 110

DC Power Supply Connector Pin Assignments . . . . 112

Contents 7

13 Coin-Cell Battery . . . . . . . . . . . . . . . . . . 117

Removing the Coin-Cell Battery . . . . . . . . . . . . . 117

Replacing the Coin-Cell Battery. . . . . . . . . . . . . 118

14 System Board . . . . . . . . . . . . . . . . . . . . 119

Remove the System Board . . . . . . . . . . . . . . . . 119

Replacing a System Board. . . . . . . . . . . . . . . . 121

15 Processor . . . . . . . . . . . . . . . . . . . . . . . 125

Removing the Processor. . . . . . . . . . . . . . . . . 125

Replacing the Processor . . . . . . . . . . . . . . . . 126

16 System Setup Program . . . . . . . . . . . . . 129

Overview . . . . . . . . . . . . . . . . . . . . . . . . . 129

Entering the System Setup Program. . . . . . . . . . . 129

System Setup Program Screens . . . . . . . . . . . . . 130

System Setup Program Options . . . . . . . . . . . . . 130

Boot Sequence. . . . . . . . . . . . . . . . . . . . . . 133

Option Settings . . . . . . . . . . . . . . . . . . . 133

Changing Boot Sequence for the

Current Boot . . . . . . . . . . . . . . . . . . . . 133

Changing Boot Sequence for Future Boots . . . . 134

Clearing Forgotten Passwords . . . . . . . . . . . . . 134

8Contents

Clearing CMOS Settings . . . . . . . . . . . . . . . . 135

BIOS . . . . . . . . . . . . . . . . . . . . . . . . . . 136

Flashing the BIOS From the Hard Drive. . . . . . 136

17 Contacting Dell . . . . . . . . . . . . . . . . . . . 137

Troubleshooting 9

Troubleshooting

Tools

Power Lights

CAUTION: Before working inside your computer, read the safety information that

shipped with your computer. For additional safety best practices information, see

the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.

The power button light located on the front of the computer illuminates and

blinks or remains solid to indicate different states:

• If the power light is blue and the computer is not responding, see "Beep

Codes" on page 10.

• If the power light is blinking blue, the computer is in standby mode. Press

a key on the keyboard, move the mouse, or press the power button to

resume normal operation.

• If the power light is off, the computer is either turned off or is not

receiving power.

– Reseat the power cable into both the power connector on the back of

the computer and the electrical outlet.

– If the computer is plugged into a power strip, ensure that the power

strip is plugged into an electrical outlet and that the power strip is

turned on.

– Bypass power protection devices, power strips, and power extension

cables to verify that the computer turns on properly.

– Ensure that the electrical outlet is working by testing it with another

device, such as a lamp.

– Ensure that the main power cable and front panel cable are securely

connected to the system board (see "System Board Components" on

page 40).

• If the power light is blinking amber, the computer is receiving electrical

power, but an internal power problem may exist.

10 Troubleshooting

– Ensure that the voltage selection switch is set to match the AC power

at your location, if applicable.

– Ensure that the processor power cable is securely connected to the

system board (see "System Board Components" on page 40).

• If the power light is steady amber, a device may be malfunctioning or

incorrectly installed.

– Remove and then reinstall the memory modules (see "Replacing or

Adding a Memory Module" on page 104).

– Remove and then reinstall any cards (see "PCI and PCI Express Cards"

on page 59).

• Eliminate interference. Some possible causes of interference are:

– Power, keyboard, and mouse extension cables

– Too many devices on a power strip

– Multiple power strips connected to the same electrical outlet

Beep Codes

Your computer may emit a series of beeps during start-up if the monitor

cannot display errors or problems. For example, one possible beep code may

consist of three short, repeated beeps indicating that the computer has

encountered a possible system board failure.

If your computer emits a series of beeps during start-up:

Write down the beep code.

Run the Dell Diagnostics to further identify the problem. (see "Dell

Diagnostics" on page 13).

Code (repetitive

short beeps)

Description Suggested Resolution

1 BIOS checksum

failure. Possible system

board failure.

Contact Dell (see "Contacting Dell" on

page 137).

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