Lenovo ThinkCentre A58 User manual

ThinkCentre
SafetyandWarrantyGuide

Note
Before using this information and the product it supports, be sure to read and
understand the following:
vChapter 1, “Important safety information,” on page 1
vChapter 3, “Lenovo Limited Warranty,” on page 19
vChapter 6, “Notices,” on page 35
First Edition (September 2009)
© Copyright Lenovo 2009.
LENOVO products, data, computer software, and services have been developed
exclusively at private expense and are sold to governmental entities as commercial items
as defined by 48 C.F.R. 2.101 with limited and restricted rights to use, reproduction and
disclosure.
LIMITED AND RESTRICTED RIGHTS NOTICE: If products, data, computer software, or
services are delivered pursuant a General Services Administration ″GSA″contract, use,
reproduction, or disclosure is subject to restrictions set forth in Contract No.
GS-35F-05925.

Contents
Chapter 1. Important safety information ............1
Conditions that require immediate action .............1
General safety guidelines ..................2
Service and upgrades ..................2
Static electricity prevention ................3
Power cords and power adapters ..............4
Voltage-selection switch..................5
Extension cords and related devices .............5
Plugs and outlets ....................6
External devices ....................6
Batteries .......................6
Heat and product ventilation ................7
Operating environment ..................8
Electrical current safety information ..............8
Lithium battery notice ...................9
Modem safety information .................10
Laser compliance statement .................10
Power supply statement ..................11
Products with television tuner options installed ..........11
Note to CATV system installer ...............11
Example of antenna grounding ...............12
Data safety ......................13
Cleaning and maintenance .................14
Using headphones or earphones ...............14
Additional safety information ................14
Chapter 2. Information resources ..............15
Online Books folder ...................15
Lenovo ThinkVantage Tools .................15
Lenovo Care ......................16
Lenovo Welcome ....................16
Access Help ......................16
Lenovo Web site (http://www.lenovo.com)............16
Recording your computer information .............17
Chapter 3. Lenovo Limited Warranty .............19
Warranty Information ...................23
Suplemento de Garantía para México..............27
Chapter 4. Worldwide Lenovo Support telephone list .......29
Chapter 5. Customer Replaceable Units (CRUs) .........33
© Copyright Lenovo 2009 iii

Chapter 6. Notices ...................35
Export classification notice .................36
Television output notice ..................36
Trademarks ......................36
Electronic emissions notices .................37
Federal Communications Commission Declaration of Conformity . . . 37
Industry Canada Class B emission compliance statement ......38
European Union EMC Directive conformance statement ......38
EU-EMC Directive (2004/108/EC) EN 55022 class B Statement of
Compliance ....................38
Korean Class B statement.................39
Japanese VCCI Class B statement ..............39
Japanese statement of compliance for products less than or equal to 20 A
per phase .....................39
Keyboard and mouse compliance statement for Taiwan.......40
Lenovo product service information for Taiwan .........40
Federal Communications Commission (FCC) and telephone company
requirements .....................40
Canadian Department of Communications certification label ......41
Power cord notice ....................42
Polyvinyl Chloride (PVC) cable and cord notice ..........44
China substance disclosure table ...............44
Turkish statement of compliance ...............45
Waste electrical and electronic equipment (WEEE) notices .......45
European Union (EU) WEEE statement ............45
Japanese recycling statement.................46
Collecting and recycling a disused Lenovo computer or monitor . . . 46
Disposing of Lenovo components ..............46
Disposing of disused lithium batteries from Lenovo computers ....46
iv Safety and Warranty Guide

Indholdsfortegnelse
Kapitel 1. Vigtige sikkerhedsforskrifter .............49
Forhold, der kræver øjeblikkelig handling ............49
Generelle sikkerhedsforskrifter ................50
Service og opgraderinger .................50
Undgå statisk elektricitet .................51
Netledninger og omformere................52
Spændingsvælgerkontakt .................52
Forlængerledninger og lignende udstyr ............53
Stik og stikkontakter...................53
Eksterne enheder ....................54
Batterier .......................54
Varme og ventilation ..................55
Driftsbetingelser ....................56
Sikkerhedsforskrifter vedrørende elektrisk strøm ..........56
Litiumbatteri ......................57
Sikkerhedsforskrifter for modem ...............58
Sikkerhedsforskrifter for laser ................58
Sikkerhedsforskrifter for strømforsyning .............58
Produkter med tv-tuner ..................59
Bemærkning vedrørende kabel-tv-installationer .........59
Eksempel på antenne med jordforbindelse ...........60
Datasikkerhed .....................61
Rengøring og vedligeholdelse ................61
Brug af hovedtelefoner eller hovedsæt .............62
Andresikkerhedsforskrifter .................62
Kapitel 2. Flere oplysninger ................63
Folder med onlinebøger ..................63
Lenovo ThinkVantage Tools .................63
Lenovo Care......................64
Lenovo Welcome ....................64
Access-hjælp ......................64
Lenovo-websted (http://www.lenovo.com)............65
Registrering af oplysninger om computeren ...........65
Kapitel 3. Lenovo Begrænset garanti .............67
Garantioplysninger ....................72
Suplemento de Garantía para México..............76
Kapitel 4. Oversigt over telefonnumre til Lenovo Support ......77
Kapitel 5. CRU-dele (Customer Replaceable Units) ........81
©Copyright Lenovo 2009 v

Kapitel 6. Bemærkninger .................83
Bemærkning om eksportklassificering .............84
Bemærkning om tv-output .................84
Varemærker ......................84
Bemærkninger vedr.elektronisk stråling .............85
Federal Communications Commission Declaration of Conformity ...85
Industry Canada Class Bemission compliance statement ......86
Erklæring vedrørende EU-krav ...............86
EU-EMC Directive (2004/108/EC) EN 55022 class BStatement of Comp-
liance ......................86
Korean Class Bstatement.................87
Japanese VCCI Class Bstatement ..............87
Japanese statement of compliance for products less than or equal to 20 A
per phase .....................87
Keyboardand mouse compliance statement for Taiwan.......88
Lenovo product service information for Taiwan .........88
Federal Communications Commission (FCC) and telephone company
requirements .....................88
Canadian Department of Communications certification label ......89
Netledninger ......................90
Bemærkning vedr.PVC-kabel og -ledning ............91
China substance disclosuretable ...............92
Overholdelse af direktiv -Tyrkiet ...............92
Bemærkninger vedr.affald af elektrisk og elektronisk udstyr (WEEE) ...93
Erklæring vedrørende WEEE iEU ..............93
Japanese recycling statement.................94
Collecting and recycling adisused Lenovo computer or monitor ...94
Disposing of Lenovo components ..............94
Disposing of disused lithium batteries from Lenovo computers ....94
viSikkerhedsforskrifter og garantioplysninger

Sisältö
Luku 1. Tärkeät turvaohjeet .................95
Välittömiä toimia edellyttävät tapahtumat tai tilat ..........95
Yleisiä turvaohjeita ....................96
Huolto ja päivitykset ..................96
Staattiselta sähköltä suojautuminen ..............97
Verkkojohdot ja verkkolaitteet ...............98
Jännitekytkin .....................99
Jatkojohdot ja niihin liittyvät laitteet .............99
Pistokkeet ja pistorasiat..................99
Ulkoiset laitteet ....................100
Paristot ja akut ....................100
Lämpö ja tuotteen tuuletus ................101
Käyttöympäristö ....................102
Sähköturvaohjeet .....................102
Litiumparistoon liittyvä turvaohje ...............103
Modeemiin liittyviä turvaohjeita ...............104
Laserturvaohjeet.....................104
Virtalähteeseen liittyvät turvaohjeet ..............105
Tuotteet, joihin on asennettu televisioviritin............105
Ohje kaapeli-TV-järjestelmän asentajalle ............105
Esimerkki antennin maadoituksesta .............106
Tietoturva .......................107
Puhdistus ja ylläpito ...................108
Kuulokkeiden käyttö ...................108
Muita turvaohjeita ....................108
Luku 2. Tietolähteitä ...................109
Online Books -kansio ...................109
Lenovo ThinkVantage Tools .................109
Lenovo Care......................110
Lenovo Welcome ....................110
Access Help ......................110
Lenovon Web-sivusto (http://www.lenovo.com) ..........111
Tietokoneen tunnistetietojen kirjaus ..............111
Luku 3. Lenovon takuuehdot (rajoitettu takuu)..........113
Takuutietoja ......................119
Suplemento de Garantía para México..............122
Luku 4. Lenovon tukipalvelun maakohtaiset puhelinnumerot ....125
Luku 5. Asiakkaan vaihdettavissa olevat osat (CRU:t) .......129
©Copyright Lenovo 2009 vii

Luku 6. Huomioon otettavaa ................131
Vientiluokitusta koskeva huomautus ..............132
Television käyttöön liittyvä huomautus .............132
Tavaramerkit ......................133
Tietoja sähkömagneettisesta säteilystä..............133
Ilmoitus FCC (Federal Communications Commission) -säännösten
mukaisuudesta ...................133
Ilmoitus kanadalaisen laitehyväksynnän (Industry Canada) luokan B
mukaisuudesta ...................134
Ilmoitus direktiivin mukaisuudesta –Euroopan unionin direktiivi
sähkömagneettista yhteensopivuutta koskevan jäsenvaltioiden
lainsäädännön lähentämisestä ..............134
Ilmoitus Euroopan unionin direktiivin 2004/108/EY ja standardin EN
55022 luokan Bmukaisuudesta ..............134
Ilmoitus Korean Class B-määrityksen mukaisuudesta .......135
Ilmoitus Japanin VCCI Class B-määrityksen mukaisuudesta .....136
Japania koskeva ilmoitus tuotteista, joissa on enintään 20 A:n sähkövirta
vaihetta kohti ....................136
Ilmoitus näppäimistön ja hiiren hyväksynnästä (Taiwan) ......136
Lenovo-tuotteiden huolto Taiwanissa .............136
Federal Communications Commission (FCC) -säännökset ja
puhelinyhtiöiden vaatimukset ...............136
Kanadan tietoliikenneministeriön (Canadian Department of
Communications) myöntämä laitehyväksyntä ..........137
Verkkojohtoa koskeva huomautus ...............138
PVC-kaapelia ja -verkkojohtoa koskeva huomautus .........140
Laitteen sisältämien materiaalien luettelo (Kiina) ..........141
Ilmoitus Turkin määräysten mukaisuudesta ...........141
Sähkö- ja elektroniikkalaiteromua (WEEE) koskeva huomautus .....142
Euroopan unionin sähkö- ja elektroniikkalaiteromua (WEEE) koskeva
ilmoitus ......................142
Japania koskevat kierrätysohjeet ...............143
Käytöstä poistettujen Lenovo-tietokoneiden ja -näyttimien keräys ja
kierrätys .....................143
Lenovo-osien loppukäsittely ................143
Lenovo-tietokoneiden käytöstä poistettujen litiumparistojen
loppukäsittely....................143
viii Turvaohjeet ja takuutiedot

Innhold
Kapittel 1. Viktig sikkerhetsinformasjon ............145
Situasjoner som krever øyeblikkelig handling ...........145
Generelle retningslinjer for sikkerhet ..............146
Service og oppgraderinger .................146
Hindrestatisk elektrisitet .................147
Strømledninger og strømforsyningsenheter ...........148
Spenningsvelger ....................149
Skjøteledninger og tilhørende utstyr .............149
Støpsler og stikkontakter .................150
Eksterne enheter ....................150
Batterier .......................150
Varme og ventilasjon iproduktet ..............151
Driftsmiljø ......................152
Sikkerhetsinformasjon -strøm ................153
Litiumbatteri ......................153
Modemsikkerhet.....................154
Laserutstyr ......................154
Strømforsyning .....................155
Produkter med TV-tuner installert ...............155
Merknad til installatører av CATV-systemer ..........156
Eksempel på antennejording................156
Datasikkerhet......................157
Rengjøring og vedlikehold .................157
Bruke hodetelefoner eller øretelefoner .............158
Annen sikkerhetsinformasjon ................158
Kapittel 2. Informasjonsressurser ..............159
Mappen Online Books ...................159
Lenovo ThinkVantage Tools .................159
Lenovo Care......................160
Lenovo Welcome ....................160
Access Help ......................160
Lenovos nettsted (http://www.lenovo.com) ...........161
Notereopplysninger om maskinen ..............161
Kapittel 3. Lenovo Garantibetingelser .............163
Garantibetingelser ....................167
Suplemento de Garantía para México..............171
Kapittel 4. Verdensomfattende telefonliste til Lenovos brukerstøtte 173
Kapittel 5. Deler som kunden kan skifte ut (CRUer) ........177
©Copyright Lenovo 2009 ix

Kapittel 6. Merknader ..................179
Merknad om eksportklassifisering ...............180
Merknad om utsignaler for TV ................180
Varemerker ......................180
Elektronisk stråling ....................181
Elektromagnetisk stråling.................181
Industry Canada Class Bemission compliance statement ......182
Tilpasning til EØS-avtalen og EU-direktiv ...........182
EU-EMC Directive (2004/108/EC) EN 55022 class BStatement of
Compliance ....................182
Korean Class Bstatement.................183
Japanese VCCI Class Bstatement ..............183
Japanese statement of compliance for products less than or equal to 20 A
per phase .....................183
Keyboardand mouse compliance statement for Taiwan.......184
Lenovo product service information for Taiwan .........184
Federal Communications Commission (FCC) and telephone company
requirements .....................184
Canadian Department of Communications certification label ......185
Strømledning ......................186
PVC-ledning ......................188
China substance disclosuretable ...............189
Turkish statement of compliance ...............189
Merknader om avfall fra elektriske og elektroniske produkter (WEEE)...190
Den europeiske union (EU) og WEEE-direktivet .........190
Japanese recycling statement.................191
Collecting and recycling adisused Lenovo computer or monitor ...191
Disposing of Lenovo components ..............191
Disposing of disused lithium batteries from Lenovo computers ....191
xSikkerhet og garantier

Innehåll
Kapitel 1. Viktig säkerhetsinformation .............193
Situationer som kräver omedelbara åtgärder ............193
Allmänna säkerhetsanvisningar ................194
Service och uppgraderingar ................194
Förhindra statisk elektricitet ................195
Nätsladdar och nätadaptrar ................196
Spänningsomkopplare..................196
Förlängningssladdar och liknande utrustning ..........197
Stickkontakter och eluttag .................197
Externa enheter ....................198
Batterier .......................198
Värme och luftcirkulation .................199
Driftmiljö ......................200
Säkerhetsinformation om elektrisk ström .............200
Batteri ........................201
Säkerhetsanvisningar för modem ...............201
Information om laserprodukt ................202
Information om strömtillförsel ................203
Produkter med TV-tuner installerad ..............203
Meddelande till CATV-systeminstallatör ............203
Exempel på antennjordning ................204
Datasäkerhet ......................205
Rengöring och underhåll ..................206
Använda headset eller hörlurar................206
Ytterligaresäkerhetsinformation ...............206
Kapitel 2. Informationskällor ................207
Mappen Online-böcker ..................207
Lenovo ThinkVantage Tools .................207
Lenovo Care......................208
Lenovo Welcome ....................208
Access -Hjälp .....................208
Lenovos webbplats (http://www.lenovo.com) ...........208
Registrera information om datorn ...............209
Kapitel 3. Lenovo Begränsad Garanti .............211
Garantiinformation ....................212
Suplemento de Garantía para México..............219
Kapitel 4. Telefonlista för Lenovo-Support ihela världen ......221
Kapitel 5. Reservdelar som kunden själv kan byta ut (CRU) .....225
©Copyright Lenovo 2009 xi

Kapitel 6. Övrig information ................227
Exportklassificering....................228
Information om funktioner för TV ...............228
Varumärken ......................228
Anmärkningar om elektromagnetisk strålning ...........229
FCCs (Federal Communications Commission) deklaration om överens-
stämmelse .....................229
Information om elektromagnetisk strålning (för användareiKanada) 230
Intyg om överensstämmelse med EU-direktiv ..........230
Intyg om klass B-överensstämmelse enligt EUs EMC-direktiv (2004/108/
EG) EN 55022 ....................230
Koreansk klass B...................231
Japansk VCCI-klass B..................231
Information om produkter med mindreän eller lika med 20 Aper fas
(för användareiJapan).................231
Information om kompatibilitet för tangentbordoch mus (för användarei
Taiwan) ......................232
Information om Lenovoproduktservice (för användareiTaiwan) ...233
FCC-krav och teleleverantörens krav ..............234
Kanadensiska kommunikationsdepartementets certifiering.......235
Information om nätsladdar .................235
PVC-kablar och information om nätsladdar............236
Deklaration av farliga ämnen (Kina) ..............236
Intyg om överensstämmelse för Turkiet .............237
Avfall från elektriska eller elektroniska produkter (WEEE) .......237
Europeiska unionens (EU) WEEE ..............237
Återvinning iJapan....................238
Samla in och återvinna en kasserad Lenovo-dator eller -bildskärm ...238
Hantera kasserade komponenter från Lenovo ..........238
Kassera litiumbatterier från Lenovo-datorer...........238
xiiHandbok för säkerhet och garanti

Chapter 1. Important safety information
Note: Be sure to read and understand the important safety information first.
This information can help you safely use your desktop or notebook personal
computer. Follow and retain all information included with your computer. The
information in this document does not alter the terms of your purchase
agreement or the Lenovo®Limited Warranty. For more information, refer to
Chapter 3, “Lenovo Limited Warranty,” on page 19.
Customer safety is important. Our products are developed to be safe and
effective. However, personal computers are electronic devices. Power cords,
power adapters, and other features can create potential safety risks that can
result in physical injury or property damage, especially if misused. To reduce
these risks, follow the instructions included with your product, observe all
warnings on the product and in the operating instructions, and review the
information included in this document carefully. By carefully following the
information contained in this document and provided with your product, you
can help protect yourself from hazards and create a safer computer work
environment.
Note: This information includes references to power adapters and batteries. In
addition to notebook computers, some products (such as speakers and
monitors) are shipped with external power adapters. If you have such a
product, this information applies to your product. In addition, computer
products contain a coin-sized internal battery that provides power to the
system clock even when the computer is unplugged, so the battery safety
information applies to all computer products.
Conditions that require immediate action
Products can become damaged due to misuse or neglect. Some product
damage is serious enough that the product should not be used again until it
has been inspected and, if necessary, repaired by an Authorized Service
Provider.
As with any electronic device, pay close attention to the product when it is
turned on. On very rare occasions, you might notice an odor or see a puff of
smoke or sparks vent from your product. Or you might hear sounds like
popping, cracking, or hissing. These conditions might merely mean that an
internal electronic component has failed in a safe and controlled manner. Or,
they might indicate a potential safety issue. However, do not take risks or
attempt to diagnose the situation yourself. Contact the Customer Support
© Copyright Lenovo 2009 1

Center for further guidance. For a list of Service and Support phone
numbers, see Chapter 4, “Worldwide Lenovo Support telephone list,” on
page 29.
Frequently inspect your computer and its components for damage, wear, or
signs of danger. If you have any question about the condition of a
component, do not use the product. Contact the Customer Support Center or
the product manufacturer for instructions on how to inspect the product and
have it repaired, if necessary.
In the unlikely event that you notice any of the following conditions, or if
you have any safety concerns with your product, stop using the product and
unplug it from the power source and telecommunication lines until you can
speak to the Customer Support Center for further guidance.
vPower cords, plugs, power adapters, extension cords, surge protectors, or
power supplies that are cracked, broken, or damaged.
vSigns of overheating, smoke, sparks, or fire.
vDamage to a battery (such as cracks, dents, or creases), discharge from a
battery, or a buildup of foreign substances on the battery.
vA cracking, hissing, or popping sound, or strong odor that comes from the
product.
vSigns that liquid has been spilled or an object has fallen onto the computer
product, the power cord, or power adapter.
vThe computer product, power cord, or power adapter has been exposed to
water.
vThe product has been dropped or damaged in any way.
vThe product does not operate normally when you follow the operating
instructions.
Note: If you notice these conditions with a product (such as an extension cord)
that is not manufactured for or by Lenovo, stop using that product until you
can contact the product manufacturer for further instructions, or until you get
a suitable replacement.
General safety guidelines
Always observe the following precautions to reduce the risk of injury and
property damage.
Service and upgrades
Do not attempt to service a product yourself unless instructed to do so by the
Customer Support Center or your documentation. Only use a Service Provider
who is approved to repair your particular product.
2Safety and Warranty Guide

Note: Some computer parts can be upgraded or replaced by the customer.
Upgrades typically are referred to as options. Replacement parts approved for
customer installation are referred to as Customer Replaceable Units, or CRUs.
Lenovo provides documentation with instructions when it is appropriate for
customers to install options or replace CRUs. You must closely follow all
instructions when installing or replacing parts. The Off state of a power
indicator does not necessarily mean that voltage levels inside a product are
zero. Before you remove the covers from a product equipped with a power
cord, always make sure that the power is turned off and that the product is
unplugged from any power source. For more information on CRUs, refer to the
ThinkCentre User Guide for this product. If you have any questions or concerns,
contact the Customer Support Center.
Although there are no moving parts in your computer after the power cord has
been disconnected, the following warnings are required for your safety.
DANGER
Hazardous moving parts. Keep fingers and other body parts away.
CAUTION:
Before replacing any CRUs, turn off the computer and wait three to five
minutes to let the computer cool before opening the cover.
Static electricity prevention
Static electricity, although harmless to you, can seriously damage computer
components and options. Improper handling of static-sensitive parts can cause
damage to the part. When you unpack an option or CRU, do not open the
static-protective package containing the part until the instructions direct you to
install it.
When you handle options or CRUs, or perform any work inside the computer,
take the following precautions to avoid static-electricity damage:
vLimit your movement. Movement can cause static electricity to build up
around you.
Chapter 1. Important safety information 3

vAlways handle components carefully. Handle adapters, memory modules,
and other circuit boards by the edges. Never touch exposed circuitry.
vPrevent others from touching components.
vWhen you install a static-sensitive option or CRU, touch the static-protective
package containing the part to a metal expansion-slot cover or other
unpainted metal surface on the computer for at least two seconds. This
reduces static electricity in the package and your body.
vWhen possible, remove the static-sensitive part from the static-protective
packaging and install the part without setting it down. When this is not
possible, place the static-protective packaging on a smooth, level surface and
place the part on it.
vDo not place the part on the computer cover or other metal surface.
Power cords and power adapters
Use only the power cords and power adapters supplied by the product
manufacturer.
The power cords shall be safety approved. For Germany, it shall be H05VV-F,
3G, 0.75 mm2, or better. For other countries, the suitable types shall be used
accordingly.
Never wrap a power cord around a power adapter or other object. Doing so
can stress the cord in ways that can cause the cord to fray, crack, or crimp.
This can present a safety hazard.
Always route power cords so that they will not be walked on, tripped over, or
pinched by objects.
Protect power cord and power adapters from liquids. For instance, do not
leave your power cord or power adapter near sinks, tubs, toilets, or on floors
that are cleaned with liquid cleansers. Liquids can cause a short circuit,
particularly if the power cord or power adapter has been stressed by misuse.
Liquids also can cause gradual corrosion of power cord terminals and/or the
connector terminals on a power adapter, which can eventually result in
overheating.
Always connect power cords and signal cables in the correct order and ensure
that all power cord connectors are securely and completely plugged into
receptacles.
Do not use any power adapter that shows corrosion at the ac input pins or
shows signs of overheating (such as deformed plastic) at the ac input or
anywhere on the power adapter.
4Safety and Warranty Guide

Do not use any power cords where the electrical contacts on either end show
signs of corrosion or overheating or where the power cord appears to have
been damaged in any way.
Voltage-selection switch
Some computers are equipped with a voltage-selection switch located near the
power-cord connection point on the computer and some computers do not
have a voltage-selection switch. Before you install your computer or relocate
your computer to another country or region, you must be certain that you
have matched your computer to the voltage available at your electrical outlet.
CAUTION:
You must know the voltage of the electrical connection (outlet) where your
computer will be connected. If you do not know the voltage, contact your
local electric company or refer to official Web sites or other literature for
travelers to the country or region where you are located.
If your computer has a voltage-selection switch, you must set the switch to
match the voltage available at your electrical outlet. Setting the
voltage-selection switch incorrectly will cause the computer to malfunction and
might cause permanent damage to the computer. Do not connect the computer
to an electrical outlet until you have verified that the voltage-selection switch
setting matches the voltage available at the electrical outlets.
If your computer does not have a voltage-selection switch, inspect the
voltage-rating label on the bottom of the computer and note the following:
vIf the voltage-rating label shows a range of either ″100-127 V″or ″200-240 V,″
you must ensure that the voltage provided at the electrical outlet matches
the voltage rating on the computer label. If it does not match, do not
attempt to connect the computer to the electrical outlet, unless an external
device such as a voltage-converting transformer is used.
vIf the voltage-rating label shows a dual range of ″100-127 V″and ″200-240
V,″this signifies that the computer is suitable for worldwide operation and
the computer will automatically adjust to the voltage at the electrical outlet
regardless of the country or region where the computer is being connected.
Extension cords and related devices
Ensure that extension cords, surge protectors, uninterruptible power supplies,
and power strips that you use are rated to handle the electrical requirements of
the product. Never overload these devices. If power strips are used, the load
should not exceed the power strip input rating. Consult an electrician for more
information if you have questions about power loads, power requirements, and
input ratings.
Chapter 1. Important safety information 5

Plugs and outlets
If a receptacle (power outlet) that you intend to use with your computer
equipment appears to be damaged or corroded, do not use the outlet until it is
replaced by a qualified electrician.
Do not bend or modify the plug. If the plug is damaged, contact the
manufacturer to obtain a replacement.
Do not share an electrical outlet with other home or commercial appliances
that draw large amounts of electricity; otherwise, unstable voltage might
damage your computer, data, or attached devices.
Some products are equipped with a three-pronged plug. This plug fits only
into a grounded electrical outlet. This is a safety feature. Do not defeat this
safety feature by trying to insert it into a non-grounded outlet. If you cannot
insert the plug into the outlet, contact an electrician for an approved outlet
adapter or to replace the outlet with one that enables this safety feature. Never
overload an electrical outlet. The overall system load should not exceed 80
percent of the branch circuit rating. Consult an electrician for more information
if you have questions about power loads and branch circuit ratings.
Be sure that the power outlet you are using is properly wired, easily accessible,
and located close to the equipment. Do not fully extend power cords in a way
that will stress the cords.
Be sure that the power outlet provides the correct voltage and current for the
product you are installing.
Carefully connect and disconnect the equipment from the electrical outlet.
External devices
Do not connect or disconnect any external device cables other than USB and
1394 cables while the computer power is on; otherwise, you might damage
your computer. To avoid possible damage to attached devices, wait at least five
seconds after the computer is shut down to disconnect external devices.
Batteries
All personal computers manufactured by Lenovo contain a non-rechargeable
coin cell battery to provide power to the system clock. In addition, many
mobile products, such as notebook computers, utilize a rechargeable battery
pack to provide system power when in portable mode. Batteries supplied by
Lenovo for use with your product have been tested for compatibility and
should only be replaced with approved parts.
6Safety and Warranty Guide