Alienware Sentia m3450 Manuale utente

Alienware Sentia 3450 Technical Reference

Notice

The company reserves the right to revise this publication or to change its contents

without notice. Information contained herein is for reference only and does not

constitute a commitment on the part of the manufacturer or any subsequent vendor.

They assume no responsibility or liability for any errors or inaccuracies that may

appear in this publication nor are they in anyway responsible for any loss or damage

resulting from the use (or misuse) of this publication. This publication and any

accompanying software may not, in whole or in part, be reproduced, translated,

trans¬mitted or reduced to any machine readable form without prior consent from the

vendor, manufacturer or creators of this publication, except for copies kept by the user

for backup purposes. Brand and product names mentioned in this publication may or

may not be copyrights and/or registered trade¬marks of their respective companies.

They are mentioned for identiﬁcation purposes only and are not intended as an

endorsement of that product or its manufacturer. ©May 2006

Trademarks

This product incorporates copyright protection technology that is protected by

method claims of certain U.S. pat¬ents and other intellectual property rights owned

by Macrovision Corporation and other rights owners. Use of this copyright protection

technology must be authorized by Macrovision Corporation, and is intended for

home or other limited viewing uses only unless otherwise authorized by Macrovision

Corporation. Reverse engineer¬ing or disassembly is prohibited. AMD Turion™ is a

trademark of Advanced Micro Devices, Inc.

is a trademark of SRS Labs, Inc. WOW technology is incorporated under license

from SRS Labs, Inc.

Alienware Sentia 3450 Technical Reference

Preface

FCC Statement (Federal Communications Commission)

This equipment has been tested and found to comply with the limits for a Class

B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed

to provide reasonable protection against harmful interference in a residential

installation. This equipment generates, uses and can radiate radio frequency energy

and, if not in¬stalled and used in accordance with the instructions, may cause

harmful interference to radio communications. However, there is no guarantee that

interference will not occur in a particular installation. If this equipment does cause

harmful interference to radio or television reception, which can be determined

by turning the equipment off and on, the user is encouraged to try to correct the

interference by one or more of the following measures:

• Re orient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to

which the receiver is connected.

• Consult the service representative or an experienced radio/TV technician for

help.

Use only shielded cables to connect I/O devices to this equipment. You are cautioned that changes or

modiﬁcations not expressly approved by the manufacturer for compliance with the above standards could void

your authority to operate the equipment.

Alienware Sentia 3450 Technical Reference

IMPORTANT SAFETY INSTRUCTIONS

Follow basic safety precautions, including those listed below, to reduce the risk of ﬁre,

electric shock, and injury to persons when using any electrical equipment:

1. Do not use this product near water, for example near a bath tub, wash bowl,

kitchen sink or laundry tub, in a wet basement or near a swimming pool.

2. Avoid using this equipment with a telephone line (other than a cordless type)

during an electrical storm. There may be a remote risk of electrical shock from

lightning.

3. Do not use the telephone to report a gas leak in the vicinity of the leak.

4. Use only the power cord and batteries indicated in this manual. Do not

dispose of batteries in a ﬁre. They may explode. Check with local codes for

possible special disposal instructions.

5. This product is intended to be supplied by a Listed Power Unit (DC Output

20V, 11A minimum).

CAUTION

Always disconnect all telephone lines from the wall outlet before servicing or

disassembling this equipment.

TO REDUCE THE RISK OF FIRE, USE ONLY NO. 26 AWG OR LARGER,

TELECOMMUNICATION LINE CORD

This Computer’s Optical Device is a Laser Class I Product

Alienware Sentia 3450 Technical Reference

Preface

Instructions for Care and Operation

The notebook computer is quite rugged, but it can be damaged. To prevent this, follow

these suggestions:

1. Don’t drop it, or expose it to shock. If the computer falls, the case and the

components could be damaged.

2. Keep it dry, and don’t overheat it. Keep the computer and power supply away

from any kind of heating ele¬ment. This is an electrical appliance. If water or

any other liquid gets into it, the computer could be badly damaged.

3. Avoid interference. Keep the computer away from high capacity transformers,

electric motors, and other strong magnetic ﬁelds. These can hinder proper

performance and damage your data.

4. Follow the proper working procedures for the computer. Shut the computer

down properly and don’t forget to save your work. Remember to periodically

save your data as data may be lost if the battery is depleted.

• Do not expose it to excessive heat or direct sunlight.

• Do not leave it in a place where foreign matter or moisture may affect the

system.

• Don’t use or store the computer in a humid environment.

• Do not place the computer on any surface that will block the vents.

• Do not turn off the power until you properly shut down all programs.

• Do not turn off any peripheral devices when the computer is on.

• Do not disassemble the computer by yourself.

• Perform routine maintenance on your computer.

5. Take care when using peripheral devices.

• Use only approved brands of peripherals.

• Unplug the power cord before attaching peripheral devices.

Alienware Sentia 3450 Technical Reference

Power Safety

The computer has speciﬁc power requirements:

• Only use a power adapter approved for use with this computer.

• Your AC/DC adapter may be designed for international travel but it still

requires a steady, uninterrupted power supply. If you are unsure of your

local power speciﬁcations, consult your service representative or local

power company.

• The power adapter may have either a 2-prong or a 3-prong grounded plug. The

third prong is an important safety feature; do not defeat its purpose. If you do

not have access to a compatible outlet, have a qualiﬁed electrician

install one.

• When you want to unplug the power cord, be sure to disconnect it by the plug

head, not by its wire.

• Make sure the socket and any extension cord(s) you use can support the total

current load of all the connected devices.

• Before cleaning the computer, make sure it is disconnected from any external

power sup¬plies (i.e. AC/DC adapter or car adapter).

• Do not plug in the power cord if you are wet.

• Do not use the power cord if it is broken.

• Do not place heavy objects on the power cord.

Power Safety Warning

Before you undertake any upgrade procedures, make sure that you have turned off

the power, and disconnected all peripherals and cables (including telephone lines).

It is advisable to also remove you battery in order to prevent accidentally turning the

machine on.

Alienware Sentia 3450 Technical Reference

Battery Precautions

• Only use batteries designed for this computer. The wrong battery type may

explode, leak or damage the computer.

• Do not continue to use a battery that has been dropped, or that appears

damaged (e.g. bent or twisted) in any way. Even if the computer continues to

work with a damaged battery in place, it may cause circuit damage, which

may possibly result in ﬁre.

• Recharge the batteries using the notebook’s system. Incorrect recharging may

make the battery explode.

• Do not try to repair a battery pack. Refer any battery pack repair or

replacement to your service representative or qual¬iﬁed service personnel.

• Keep children away from, and promptly dispose of a damaged battery. Always

dispose of batteries carefully. Batteries may explode or leak if exposed to ﬁre,

or improperly handled or discarded.

• Keep the battery away from metal appliances.

• Afﬁx tape to the battery contacts before disposing of the battery.

• Do not touch the battery contacts with your hands or metal objects.

Battery Disposal & Caution

The product that you have purchased contains a rechargeable battery. The battery is

recyclable. At the end of its useful life, under various state and local laws, it may be

illegal to dispose of this battery into the municipal waste stream. Check with your local

solid waste ofﬁcials for details in your areafor recycling options or proper disposal.

Danger of explosion if battery is incorrectly replaced. Replace only with the same or

equivalent type recommended by the manufacturer. Discard used battery according to

the manufacturer’s instructions.

Alienware Sentia 3450 Technical Reference

Cleaning

Do not apply cleaner directly to the computer; use a soft clean cloth.

Do not use volatile (petroleum distillates) or abrasive cleaners on any part

of the computer.

Servicing

Do not attempt to service the computer yourself. Doing so may violate your warranty

and expose you and the computer to electric shock. Refer all servicing to authorized

service personnel. Unplug the computer from the power supply. Then refer servicing to

qualiﬁed service personnel under any of the following conditions:

• When the power cord or AC/DC adapter is damaged or frayed.

• If the computer has been exposed to rain or other liquids.

• If the computer does not work normally when you follow the operating instructions.

• If the computer has been dropped or damaged (do not touch the poisonous

liquid if the LCD panel breaks).

• If there is an unusual odor, heat or smoke coming from your computer.

Removal Warning

When removing any cover(s) and screw(s) for the purposes of device upgrade,

remember to replace the cover(s) and screw(s) before turning the computer on.

Alienware Sentia 3450 Technical Reference

Travel Considerations

Packing

As you get ready for your trip, run through this list to make sure the system is ready to go:

1. Check that the battery pack and any spares are fully charged.

2. Power off the computer and peripherals.

3. Close the display panel and make sure it’s latched.

4. Disconnect the AC/DC adapter and cables. Stow them in the carrying bag.

5. The AC/DC adapter uses voltages from 100 to 240 volts so you won’t need

a second voltage adapter. However, check with your travel agent to see if you

need any socket adapters.

6. Put the notebook in its carrying bag and secure it with the bag’s straps.

7. If you’re taking any peripherals (e.g. a printer, mouse or digital camera), pack

them and those devices’ adapters and/or cables.

8. Anticipate customs - Some jurisdictions may have import restrictions or

require proof of ownership for both hard¬ware and software. Make sure your

documents are prepared.

Power Off Before Traveling

Make sure that your notebook is completely powered off before putting it into a

travel bag (or any other such container). Putting a notebook which is powered on

in a travel bag may cause the Vents/Fan Intakes to be blocked. To prevent your

computer from overheating make sure nothing blocks the Vent/Fan Intakes while the

computer is in use.

Alienware Sentia 3450 Technical Reference

On the Road

In addition to the general safety and maintenance suggestions in this preface, and

Chapter 8: Troubleshooting, keep these points in mind:

Hand-carry the notebook - For security, don’t let it out of your sight. In some

areas, computer theft is very common. Don’t check it with normal luggage.

Baggage handlers may not be sufﬁciently careful. Avoid knock¬ing the computer

against hard objects.

Beware of Electromagnetic ﬁelds - Devices such as metal detectors & X-ray

machines can damage the com¬puter, hard disk, ﬂoppy disks, and other media.

They may also destroy any stored data - Pass your computer and disks around

the devices. Ask security ofﬁcials to hand-inspect them (you may be asked to

turn it on). Note: Some airports also scan luggage with these devices.

Fly safely - Most airlines have regulations about the use of computers and other

electronic devices in ﬂight. These restrictions are for your safety, follow them.

If you stow the notebook in an overhead compartment, make sure it’s secure.

Contents may shift and/or fall out when the compartment is opened.

Get power where you can - If an electrical outlet is available, use the AC/DC

adapter and keep your battery(ies) charged.

Keep it dry - If you move quickly from a cold to a warm location, water vapor can

condense inside the computer. Wait a few minutes before turning it on so that

any moisture can evaporate.

Alienware Sentia 3450 Technical Reference

Developing Good Work Habits

Developing good work habits is important if you need to work in front of the computer

for long periods of time. Improper work habits can result in discomfort or serious injury

from repetitive strain to your hands, wrists or other joints. The following are some tips

to reduce the strain:

• Adjust the height of the chair and/or desk so that the keyboard is at or

slightly below the level of your elbow. Keep your forearms, wrists, and hands

in a relaxed position.

• Your knees should be slightly higher than your hips. Place your feet ﬂat on the

ﬂoor or on a footrest if necessary.

• Use a chair with a back and adjust it to support your lower back comfortably.

• Sit straight so that your knees, hips and elbows form approximately

90-degree angles when you are working.

• Take periodic breaks if you are using the computer for long periods of time.

Remember to:

• Alter your posture frequently.

• Stretch and exercise your body several times a day.

• Take periodic breaks when you work at the computer for long

periods of time. Frequent and short breaks are better than fewer

and longer breaks.

Lighting

Proper lighting and comfortable display viewing angle can reduce eye strain and

muscle fatigue in your neck and shoulders.

• Position the display to avoid glare or reﬂections from overhead lighting or

outside sources of light.

• Keep the display screen clean and set the brightness and contrast to levels

that allow you to see the screen clearly.

• Position the display directly in front of you at a comfortable viewing distance.

• Adjust the display-viewing angle to ﬁnd the best position.

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