Dell Vostro 20-3055 Bedienungsanleitung

Dell Vostro 20–3055

Owner's Manual

Regulatory Model: W15B

Regulatory Type: W15B001

Notes, cautions, and warnings

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

CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you

how to avoid the problem.

WARNING: A WARNING indicates a potential for property damage, personal injury, or death.

intellectual property laws. Dell™and the Dell logo are trademarks of Dell Inc. in the United States and/or other

jurisdictions. All other marks and names mentioned herein may be trademarks of their respective companies.

2015 - 04

Rev. A00

Working on Your Computer

Before Working Inside Your Computer

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

ensure your personal safety. Unless otherwise noted, each procedure included in this document assumes

that the following conditions exist:

• You have read the safety information that shipped with your computer.

• A component can be replaced or--if purchased separately--installed by performing the removal

procedure in reverse order.

WARNING: Disconnect all power sources before opening the computer cover or panels. After you

finish working inside the computer, replace all covers, panels, and screws before connecting to

the power source.

WARNING: 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

CAUTION: Many repairs may only be done by a certified service technician. You should only

perform troubleshooting and simple repairs as authorized in your product documentation, or as

directed by the online or telephone service and support team. Damage due to servicing that is

not authorized by Dell is not covered by your warranty. Read and follow the safety instructions

that came with the product.

CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or

by periodically touching an unpainted metal surface, such as a connector on the back of the

computer.

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.

CAUTION: When you disconnect a cable, pull on its connector or on its pull-tab, not on the cable

itself. Some cables have connectors 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.

NOTE: The color of your computer and certain components may appear differently than shown in

this document.

To avoid damaging your computer, perform the following steps before you begin working inside the

computer.

1. Ensure that your work surface is flat and clean to prevent the computer cover from being scratched.

2. Turn off your computer (see Turning Off Your Computer).

CAUTION: To disconnect a network cable, first unplug the cable from your computer and

then unplug the cable from the network device.

3. Disconnect all network cables from the computer.

4. Disconnect your computer and all attached devices from their electrical outlets.

5. Press and hold the power button while the computer is unplugged to ground the system board.

6. Remove the cover.

CAUTION: 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 static electricity, which could

harm internal components.

Recommended Tools

The procedures in this document may require the following tools:

• Small flat-blade screwdriver

• Phillips screwdriver

• Small plastic scribe

Turning Off Your Computer

CAUTION: To avoid losing data, save and close all open files and exit all open programs before

you turn off your computer.

1. Shut down the operating system:

• In Windows 8:

– Using a touch-enabled device:

a. Swipe in from the right edge of the screen, opening the Charms menu and select

Settings.

b. Select the and then select Shut down

– Using a mouse:

a. Point to upper-right corner of the screen and click Settings.

b. Click the and select Shut down.

• In Windows 7:

1. Click Start .

2. Click Shut Down.

1. Click Start .

2. Click the arrow in the lower-right corner of the Start menu as shown below, and then click

Shut Down..

2. Ensure that the computer and all 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 about 6 seconds to turn them off.

After Working Inside Your Computer

After you complete any replacement procedure, ensure you connect any external devices, cards, and

cables before turning on your computer.

1. Replace the cover.

CAUTION: To connect a network cable, first plug the cable into the network device and then

plug it into the computer.

2. Connect any telephone or network cables to your computer.

3. Connect your computer and all attached devices to their electrical outlets.

4. Turn on your computer.

5. If required, verify that the computer works correctly by running the Dell Diagnostics.

Removing and Installing Components

This section provides detailed information on how to remove or install the components from your

computer.

Removing the Stand

1. Follow the procedures in Before Working Inside Your Computer.

2. Place the computer on a flat surface, display facing downwards.

3. Pry and remove the hinge cover from the computer.

4. Perform the following steps as shown in the illustration:

a. Remove the screws that secure the stand to the computer [1].

b. Slide the stand from the computer [2].

5. Remove the stand from the computer.

Installing the Stand

1. Align the stand on the computer, and tighten the screws to secure the stand to the computer.

2. Place and press the hinge cover on the computer until it clicks into place.

3. Follow the procedures in After Working Inside Your Computer.

Removing the Optical-disk Drive

1. Follow the procedures in Before Working Inside Your Computer.

2. Remove the stand.

3. Perform the following steps as shown in the illustration:

a. Press on the tab indicated using a scribe [1].

b. Slide the optical-disk drive (ODD) out of the computer [2].

4. Remove the screws that secure the optical-disk drive bracket, and remove it from the optical drive

[1,2].

Installing the Optical-disk Drive

1. Tighten the screws to secure the optical-disk drive bracket to the optical drive.

2. Insert the optical-disk drive into its slot until it clicks into place.

3. Install:

a. stand

4. Follow the procedures in After Working Inside Your Computer.

Removing the Back Cover

1. Follow the procedures in Before Working Inside Your Computer.

2. Remove:

a. stand

b. optical-disk drive

3. Perform the following steps as shown in the illustration:

a. Pry the edge of the base cover [1].

b. Remove the back cover from the computer [2].

Installing the Back Cover

1. Align and press the back cover, until it clicks into place.

2. Install:

a. optical-disk drive

b. stand

3. Follow the procedures in After Working Inside Your Computer.

Removing the Hard Drive

1. Follow the procedures in Before Working Inside Your Computer.

2. Remove:

a. stand

b. optical-disk drive

c. back cover

3. Perform the following steps as shown in the illustration:

a. Disconnect the hard-drive cable from the computer [1].

b. Remove the screw that secures the hard-drive to the computer [2].

c. Slide the hard-drive [3].

4. Remove the hard-drive from the computer.

5. Remove the screws that secure the hard-drive to the bracket, lift the hard-drive from bracket [1,2]

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