Dell XPS 400 Manuale utente

Dell XPS 400 Service Manual

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Dell™ XPS™ 400 Service Manual

About Your Computer

Before You Begin

Removing the Computer Cover

Technical Overview

Specifications

Advanced Troubleshooting

System Setup

Removing and Installing Parts

Replacing the Computer Cover

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 a 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 in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.

Trademarks used in this text: Dell, XPS, and the DELL logo are trademarks of Dell Inc.; Intel, Pentium, and SpeedStep are registered trademarks

of Intel Corporation; Microsoft and Windows are registered trademarks of Microsoft Corporation.

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.

Model DCTA

August 2006 Rev. A01

About Your Computer: Dell XPS 400 Service Manual

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About Your Computer

Dell™ XPS™ 400 Service Manual

Front View of the Computer

Back View of the Computer

Front View of the Computer

1cover latch

release Use this latch to remove the cover. See "Removing the Computer Cover."

2CD or DVD

activity

light

The drive light is on when the computer reads data from the CD or DVD drive.

3CD or DVD

eject

button

Press to eject a disc from the CD or DVD drive.

4 Floppy

drive bay Can contain an optional floppy drive.

5 FlexBay Can contain an optional floppy drive or optional Media Card Reader.

6IEEE 1394 Use the optional IEEE 1394 connector for high-speed data devices such as

About Your Computer: Dell XPS 400 Service Manual

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connector

(optional)

digital video cameras and external storage devices.

7 vents For adequate cooling, do not block any of the vents.

NOTICE: Do not use the vents as handles; doing so may result in damage to

your computer. Also, ensure that there is a minimum of two inches of space

between all vents and any object near these vents.

8USB 2.0

connectors

(2)

Use the front USB connectors for devices that you connect occasionally, such

as joysticks or cameras. It is recommended that you use the back USB

connectors for devices that typically remain connected, such as printers,

keyboards, and mice, or for bootable USB devices, which may not function

properly if attached to the front connectors.

9 power

button Press to turn on the computer.

NOTICE: To avoid losing data, do not use the power button to turn off the

computer. Instead, perform an operating system shutdown.

10 hard-drive

activity

light

The hard drive activity light is on when the computer reads data from or

writes data to the hard drive. The light might also be on when a device such

as a CD player is operating.

11 diagnostic

lights (4) Use the lights to help you troubleshoot a computer problem based on the

diagnostic code. For more information, see "Diagnostic Lights."

12 headphone

connector Use the headphone connector to attach headphones.

13 microphone

connector Use the microphone connector to attach a personal computer microphone for

voice or musical input into a sound or telephony program.

14 Service

Tag Used to identify your computer when you access the Dell Support website or

call technical support.

Back View of the Computer

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1 power

connector Insert the power cable.

2 sound

card

connectors

(5)

Line-in connector — Use the blue line-in connector to attach a

record/playback device such as a cassette player, CD player, or VCR.

Line-out connector — Use the green line-out connector to attach

headphones and most speakers with integrated amplifiers.

Microphone connector — Use the pink microphone connector to attach a

personal computer microphone for voice or musical input into a sound or

telephony program.

Surround connector — Use the black surround connector to attach

multichannel-capable speakers.

Center/subwoofer (Center/LFE) connector — Use the yellow subwoofer

connector to attach multiple speakers.

3 network

connector To attach your computer to a network or broadband device, connect one end of

a network cable to either a network port or your network or broadband device.

Connect the other end of the network cable to the network connector on your

computer. A click indicates that the network cable has been securely attached.

NOTE: Do not plug a telephone cable into the network connector.

On computers with a network connector card, use the connector on the card.

4USB 2.0

connectors

(5)

Use the back USB connectors for devices that typically remain connected, such

as printers, keyboards, and mice, or for bootable USB devices which may not

function properly if attached to the front connectors (see "System Setup" for

more information on booting to a USB device)

It is recommended that you use the front USB connectors for devices that you

connect occasionally, such as joysticks or cameras.

5card slots

(6) Access connectors for any installed PCI or PCI Express cards.

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About Your Computer: Dell XPS 400 Service Manual

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Before You Begin: Dell XPS 400 Service Manual

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Before You Begin

Dell™ XPS™ 400 Service Manual

Getting Started

Recommended Tools

Turning Off Your Computer

Before Working Inside Your Computer

Getting Started

This chapter provides procedures for removing and installing the components in your computer. Unless otherwise noted, each

procedure assumes that the following conditions exist:

You have performed the steps in "Turning Off Your Computer" and "Before Working Inside Your Computer."

You have read the safety information in your Dell™ Product Information Guide.

A component can be replaced by performing the removal procedure in reverse order.

Recommended Tools

The procedures in this document may require the following tools:

Small flat-blade screwdriver

Phillips screwdriver

Long Phillips screwdriver

Flash BIOS update program floppy disk or CD

Turning Off Your Computer

NOTICE: To avoid losing data, save and close any open files and exit any open programs before you turn off your

computer.

1. Shut down the operating system:

a. Save and close any open files, exit any open programs, click the Start button, and then click Turn Off

Computer.

b. In the Turn off computer window, click Turn off.

The computer turns off after the operating system shutdown process finishes.

2. Ensure that the computer and any attached devices are turned off. If your computer and attached devices did not

automatically turn off when you shut down your operating system, press and hold the power button for 4 seconds.

Before You Begin: Dell XPS 400 Service Manual

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Before Working Inside Your Computer

Use the following safety guidelines to help protect your computer from potential damage and to help ensure your own

personal safety.

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the

Product Information Guide.

CAUTION: Handle components and cards with care. Do not touch the components or contacts on a card.

Hold a card by its edges or by its metal mounting bracket. Hold a component such as a processor by its

edges, not by its pins.

NOTICE: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is

not authorized by Dell is not covered by your warranty.

NOTICE: When you disconnect a cable, pull on its connector or on its strain-relief loop, not on the cable itself. Some

cables have a connector with locking tabs; if you are disconnecting this type of cable, press in on the locking tabs

before you disconnect the cable. As you pull connectors apart, keep them evenly aligned to avoid bending any

connector pins. Also, before you connect a cable, ensure that both connectors are correctly oriented and aligned.

NOTICE: To avoid damaging the computer, perform the following steps before you begin working inside the computer.

1. Turn off your computer.

NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the

network port or device.

2. Disconnect any telephone or telecommunication lines from the computer.

3. Disconnect your computer and all attached devices from their electrical outlets, and then press the power button to

ground the system board.

NOTICE: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface,

such as the metal at the back of the computer. While you work, periodically touch an unpainted metal surface to

dissipate any static electricity that could harm internal components.

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Removing the Computer Cover: Dell XPS 400 Service Manual

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Removing the Computer Cover

Dell™ XPS™ 400 Service Manual

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the

Product Information Guide.

CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before

removing the cover.

NOTICE: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface,

such as the metal at the back of the computer. While you work, periodically touch an unpainted metal surface to

dissipate any static electricity that could harm internal components.

1. Follow the procedures in "Before You Begin."

2. If you have installed a security cable, remove it from the security cable slot.

NOTICE: Ensure that sufficient space exists to support the removed cover—at least 30 cm (1 ft) of desk top space.

NOTICE: Ensure that you are working on a level, protected surface to avoid scratching either the computer or the

surface on which it is resting.

3. Lay your computer on its side with the computer cover facing up.

4. Pull back the cover latch release on the top panel.

5. Locate the three hinge tabs on the bottom edge of the computer.

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6. Grip the sides of the computer cover and pivot the cover up.

7. Lift the cover away and set it aside in a secure location.

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Technical Overview: Dell XPS 400 Service Manual

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Technical Overview

Dell™ XPS™ 400 Service Manual

Inside View of Your Computer

System Board Components

Power Supply DC Connector Pin Assignments

Inside View of Your Computer

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the

Product Information Guide.

System Board Components

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