Lenovo ThinkCentre M50 Quick Reference Manual

ThinkCentre M50
Lenovo
Brand
Lenovo
Model
ThinkCentre M50
Type
Quick Reference Manual
ThinkCentre
™
Quick
Reference
Inside
-
Important
safety
information
-
Warranty
and
other
notices
-
Computer
setup
-
Software
recovery
-
Troubleshooting
and
diagnostics
-
IBM
help
and
service
-
IBM
Lotus
software
offer

ThinkCentre
™
Quick
Reference

Note
Before
using
this
information
and
the
product
it
supports,
be
sure
to
read
the
following:
v
“Important
safety
information”
on
page
v
v
Appendix
B,
“IBM
Statement
of
Limited
Warranty
Z125-4753-07
11/2002,”
on
page
33
v
Appendix
C,
“Notices,”
on
page
59
Fifth
Edition
(October
2003)
©
Copyright
International
Business
Machines
Corporation
2003.
All
rights
reserved.
US
Government
Users
Restricted
Rights
–
Use,
duplication
or
disclosure
restricted
by
GSA
ADP
Schedule
Contract
with
IBM
Corp.
Contents
Important
safety
information
.
.
.
.
.
.
.
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.
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.
.
.v
Conditions
that
require
immediate
action
.
.
.
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.
.
.
.
.v
General
safety
guidelines
.
.
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.
.vi
Additional
safety
information
.
.
.
.
.
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.
.
.
.
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.
.
.ix
Lithium
battery
notice
.
.
.
.
.
.
.
.
.
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.
.
.
.
.xi
Modem
safety
information
.
.
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.
.
. xii
Laser
compliance
statement
.
.
.
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.
.
. xii
Additional
help
.
.
.
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.
.xv
Chapter
1.
Arranging
your
workspace
.
.
.
.
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.
.
.1
Comfort
.
.
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.
.
.1
Chapter
2.
Setting
up
your
computer
.
.
.
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.
.
.
.
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.
.
.3
Turning
on
power
.
.
.
.
.
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.
.7
Finishing
the
software
installation
.
.
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.7
Completing
important
tasks
.
.
.
.
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.
.7
Updating
your
operating
system
.
.
.
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.
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.
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.8
Installing
other
operating
systems
.
.
.
.
.
.
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.
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.
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.
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.8
Updating
anivirus
your
software
.
.
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.
.
.8
Starting
the
IBM
Setup
Utility
.
.
.
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.9
Shutting
down
the
computer
.
.
.
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.
.
.
.9
Recording
your
computer
information
.
.
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.
.
.
.
.9
Chapter
3.
Recovering
software
.
.
.
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.
.
.11
Performing
a
software
recovery
.
.
.
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.
.11
Solving
recovery
problems
.
.
.
.
.
.
.
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.
.
.
.
.
.
.
.12
Recovering
or
installing
device
drivers
.
.
.
.
.
.
.
.
.
.
.
.
.13
Chapter
4.
Troubleshooting
and
diagnostics
.
.
.
.
.
.
.
.
.
.15
Basic
troubleshooting
.
.
.
.
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.
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.
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.
.
.15
IBM
Enhanced
Diagnostics
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.17
Error
codes
.
.
.
.
.
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.
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.
.
.
.18
POST
beep
codes
.
.
.
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.
.
.20
Chapter
5.
Getting
information,
help,
and
service
.
.
.
.
.
.
.
.
.23
Getting
information
.
.
.
.
.
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.
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.
.
.
.
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.
.23
Getting
help
and
service
.
.
.
.
.
.
.
.
.
.
.
.
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.
.
.
.
.23
Purchasing
additional
services
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.27
Appendix
A.
IBM
Lotus
Software
Offer
.
.
.
.
.
.
.
.
.
.
.
.29
©
Copyright
IBM
Corp.
2003
iii
Appendix
B.
IBM
Statement
of
Limited
Warranty
Z125-4753-07
11/2002
33
Part
1
-
General
Terms
.
.
.
.
.
.
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.
.
.
.
.33
Part
2
-
Country-unique
Terms
.
.
.
.
.
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.
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.
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.
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.
.
.36
Part
3
-
Warranty
Information
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.48
Guarantee
supplement
for
Mexico
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.56
Appendix
C.
Notices
.
.
.
.
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.
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.
.59
Trademarks
.
.
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.
.60
Electronic
emissions
notices
.
.
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.
.60
Power
cord
notice
.
.
.
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.
.
.
.
.64
Polyvinyl
Chloride
(PVC)
cable
and
cord
notice
.
.
.
.
.
.
.
.
.
.66
iv
Quick
Reference
Table
des
matières
Avis
aux
lecteurs
canadiens
.
.
.
.
.
.
.
.
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.
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.
.
67
Consignes
de
sécurité
.
.
.
.
.
.
.
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.
.
.
.
.
.
.
71
Conditions
nécessitant
une
intervention
immédiate
.
.
.
.
.
.
.
.
71
Consignes
de
sécurité
générales
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
73
Consignes
de
sécurité
supplémentaires
.
.
.
.
.
.
.
.
.
.
.
.
. 76
Batterie
au
lithium
.
.
.
.
.
.
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.
77
Informations
relatives
au
modem
.
.
.
.
.
.
.
.
.
.
.
.
.
.
77
Conformité
aux
normes
relatives
aux
appareils
à
Laser
.
.
.
.
.
.
. 78
Aide
supplémentaire
.
.
.
.
.
.
.
.
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.
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.
. .79
Chapitre
1.
Organisation
de
l’espace
de
travail
.
.
.
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.
.
81
Confort
.
.
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.
81
Chapitre
2.
Installation
de
l’ordinateur
.
.
.
.
.
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.
83
Mise
sous
tension
.
.
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.
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.
.
87
Fin
de
l’installation
.
.
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.
88
Tâches
importantes
à
effectuer
.
.
.
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.
.
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.
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.
.
.
.
.
88
Mise
à
jour
de
votre
système
d’exploitation
.
.
.
.
.
.
.
.
.
.
.
89
Installation
d’autres
systèmes
d’exploitation
.
.
.
.
.
.
.
.
.
.
.
89
Mise
à
jour
de
votre
logiciel
antivirus
.
.
.
.
.
.
.
.
.
.
.
.
.
89
Lancement
de
l’utilitaire
de
configuration
IBM
.
.
.
.
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.
.
.
.
.
89
Arrêt
de
l’ordinateur
.
.
.
.
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.
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.
.
.
.
.
.
.
.
.
.
.
100
Tableau
d’informations
.
.
.
.
.
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.
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.
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.
.
100
Chapitre
3.
Récupération
de
logiciels
.
.
.
.
.
.
.
.
.
.
.
.
.91
Récupération
des
logiciels
.
.
.
.
.
.
.
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.
.
.
.
.
.
.
.
.91
Résolution
des
incidents
de
récupération
.
.
.
.
.
.
.
.
.
.
.
.92
Récupération
ou
installation
de
pilotes
de
périphérique
.
.
.
.
.
.
.
.93
Chapitre
4.
Résolution
des
incidents
et
restauration
.
.
.
.
.
.
.95
Résolution
des
incidents
-
Procédures
de
base
.
.
.
.
.
.
.
.
.
.
.95
IBM
Enhanced
Diagnostics
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.97
Codes
d’erreur
.
.
.
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.
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.
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.
.
.
.
.
.
.
.99
Bips
sonores
émis
pendant
le
POST
.
.
.
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.
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.
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.
.
.101
Chapitre
5.
Assistance
technique
.
.
.
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.
.
.
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.
.
.
.
.103
Informations
.
.
.
.
.
.
.
.
.
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.
.
.
.
.
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.
.
.103
Services
d’assistance
.
.
.
.
.
.
.
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.
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.
.
.
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.
.
.104
Services
complémentaires
.
.
.
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.
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.
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.
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.
.
.107
©
Copyright
IBM
Corp.
2003
Annexe
A.
Offre
de
logiciel
IBM
Lotus
.
.
.
.
.
.
.
.
.
.
.
.109
Annexe
B.
Déclaration
de
garantie
IBM
Z125-4753-07
11/2002
.
.
.
.113
Chapitre
1
-
Dispositions
Générales
.
.
.
.
.
.
.
.
.
.
.
.
.
.113
Chapitre
2
-
Dispositions
Nationales
Particulières
.
.
.
.
.
.
.
.
.
.117
Chapitre
3
-
Informations
relatives
à
la
garantie
.
.
.
.
.
.
.
.
.
.130
Supplément
de
garantie
pour
le
Mexique
.
.
.
.
.
.
.
.
.
.
.
.141
Annexe
C.
Remarques
.
.
.
.
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.
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.
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.
.143
Marques
.
.
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.
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.
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.
.
.144
Bruits
radioélectriques
.
.
.
.
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.
.
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.
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.
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.
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.
.
.145
Cordons
d’alimentation
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.148
Cordons
d’alimentation
et
câbles
sous
enveloppe
de
PVC
(chlorure
de
polyvinyle)
.
.
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.
.150
ThinkCentre
-
Aide-mémoire
Inhaltsverzeichnis
Wichtige
Sicherheitshinweise
.
.
.
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.
.
151
Situationen,
in
denen
sofort
reagiert
werden
muss
.
.
.
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.
.
.
.
.
151
Allgemeine
Sicherheitsrichtlinien
.
.
.
.
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.
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.
. 153
Zusätzliche
Sicherheitsinformationen
.
.
.
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.
.
154
Hinweis
zur
Lithiumbatterie
.
.
.
.
.
.
.
.
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.
.
.
.
.
.
. 158
Sicherheitshinweise
zu
Modems
.
.
.
.
.
.
.
.
.
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.
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.
.
. 159
Lasersicherheit
.
.
.
.
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.
.
.
.
.
.
.
. 160
Weiterführende
Hilfe
.
.
.
.
.
.
.
.
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.
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.
.
.
.
. 163
Kapitel
1.
Arbeitsplatz
einrichten
.
.
.
.
.
.
.
.
.
.
.
.
.
.
163
Ergonomie
.
.
.
.
.
.
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.
.
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.
.
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.
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.
.
.
.
163
Kapitel
2.
Computer
in
Betrieb
nehmen
.
.
.
.
.
.
.
.
.
.
.
167
Computer
einschalten
.
.
.
.
.
.
.
.
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.
.
.
.
.
.
.
.
.173
Softwareinstallation
abschließen
.
.
.
.
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.
.
.
.
.172
Wichtige
Aufgaben
.
.
.
.
.
.
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.
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.
.
.
.
.172
Betriebssystem
aktualisieren
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.173
Andere
Betriebssysteme
installieren
.
.
.
.
.
.
.
.
.
.
.
.
.
.173
Antivirensoftware
aktualisieren
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.173
Programm
″IBM
Setup
Utility″
starten
.
.
.
.
.
.
.
.
.
.
.
.
.174
Systemabschluss
durchführen
.
.
.
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.
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.
.
.174
Computerdaten
notieren
.
.
.
.
.
.
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.
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.
.
.
.
.174
Kapitel
3.
Software
wiederherstellen
.
.
.
.
.
.
.
.
.
.
.
.
.177
Softwarewiederherstellung
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.177
Fehler
bei
der
Wiederherstellung
beheben
.
.
.
.
.
.
.
.
.
.
.
.178
Einheitentreiber
wiederherstellen
oder
installieren
.
.
.
.
.
.
.
.
.180
Kapitel
4.
Fehlerbehebung
und
Diagnoseprogramme
.
.
.
.
.
.
.183
Grundlegende
Fehlerbehebung
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.183
IBM
Enhanced
Diagnostics
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.185
Fehlercodes
.
.
.
.
.
.
.
.
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.
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.
.
.
.
.187
POST-Signaltöne
.
.
.
.
.
.
.
.
.
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.
.
.
.
.
.
.
.
.190
Kapitel
5.
Informationen,
Hilfe
und
Service
anfordern
.
.
.
.
.
.
.193
Informationen
anfordern
.
.
.
.
.
.
.
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.
.
.
.
.
.193
Hilfe
und
Service
anfordern
.
.
.
.
.
.
.
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.
.
.
.
.
.
.194
Zusätzliche
Services
bestellen
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.198
Anhang
A.
IBM
Lotus
Software-Angebot
.
.
.
.
.
.
.
.
.
.
.
.199
Anhang
B.
IBM
Erklärung
über
begrenzte
Gewährleistung
Z125-4753-07
11/2002
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.203
Teil
1
-
Allgemeine
Bestimmungen
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.203
Teil
2
-
Länderspezifische
Bestimmungen
.
.
.
.
.
.
.
.
.
.
.
.207
Teil
3
-
Gewährleistungsinformationen
.
.
.
.
.
.
.
.
.
.
.
.
.222
Anhang
C.
Bemerkungen
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.231
Marken
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.234
Hinweise
zur
elektromagnetischen
Verträglichkeit
.
.
.
.
.
.
.
.
.234
Hinweis
zu
Netzkabeln
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.239
Kurzübersicht
Indice
Informazioni
importanti
sulla
sicurezza
.
.
.
.
.
.
.
.
.
.
.
.
241
Condizioni
che
richiedono
un
intervento
immediato
.
.
.
.
.
.
.
.
241
Linee
guida
generali
per
la
sicurezza
.
.
.
.
.
.
.
.
.
.
.
.
.
242
Ulteriori
informazioni
sulla
sicurezza
.
.
.
.
.
.
.
.
.
.
.
.
.
246
Batteria
al
litio
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
246
Informazioni
sulla
sicurezza
del
modem
.
.
.
.
.
.
.
.
.
.
.
.
247
Dichiarazione
di
conformità
relativa
al
laser
.
.
.
.
.
.
.
.
.
.
247
Ulteriori
informazioni
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 249
Capitolo
1.
Organizzazione
dell’area
di
lavoro
.
.
.
.
.
.
.
.
.
251
Organizzazione
ottimale
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
251
Capitolo
2.
Installazione
dell’elaboratore
.
.
.
.
.
.
.
.
.
.
.
255
Accensione
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.260
Completamento
dell’installazione
del
software
.
.
.
.
.
.
.
.
.
.
.260
Attività
importanti
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.261
Aggiornamento
del
sistema
operativo
.
.
.
.
.
.
.
.
.
.
.
.
.
.261
Installazione
di
altri
sistemi
operativi
.
.
.
.
.
.
.
.
.
.
.
.
.
.261
Aggiornamento
del
software
antivirus
.
.
.
.
.
.
.
.
.
.
.
.
.262
Avvio
del
programma
IBM
Setup
Utility
.
.
.
.
.
.
.
.
.
.
.
.
.262
Spegnimento
dell’elaboratore
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.262
Registrazione
delle
informazioni
dell’elaboratore
.
.
.
.
.
.
.
.
.
.262
Capitolo
3.
Ripristino
del
software
.
.
.
.
.
.
.
.
.
.
.
.
.
.265
Esecuzione
del
ripristino
del
software
.
.
.
.
.
.
.
.
.
.
.
.
.265
Soluzioni
relative
ai
problemi
di
ripristino
.
.
.
.
.
.
.
.
.
.
.
.266
Ripristino
o
installazione
dei
driver
di
periferica
.
.
.
.
.
.
.
.
.
.267
Capitolo
4.
Risoluzione
dei
problemi
e
programmi
di
diagnostica
.
.
.269
Risoluzione
dei
problemi
basilari
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.269
Diagnostica
avanzata
IBM
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.271
Codici
di
errore
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.273
Segnali
acustici
del
POST
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.275
Capitolo
5.
Richiesta
di
informazioni,
supporto
e
assistenza
.
.
.
.
.277
Come
ottenere
le
informazioni
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.277
Come
ottenere
aiuto
e
assistenza
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.277
Acquisto
di
altri
servizi
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.281
Appendice
A.
Offerta
software
Lotus
IBM
.
.
.
.
.
.
.
.
.
.
.283
©
Copyright
IBM
Corp.
2003
Appendice
B.
Dichiarazione
di
garanzia
IBM
Z125-4753-07
11/2002
.
.287
Parte
1
-
Condizioni
generali
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.287
Parte
2
-
Condizioni
specifiche
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.290
Parte
3
-
Informazioni
sulla
garanzia
.
.
.
.
.
.
.
.
.
.
.
.
.
.292
Appendice
C.
Informazioni
particolari
.
.
.
.
.
.
.
.
.
.
.
.
.311
Marchi
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.312
Informazioni
sulle
emissioni
elettromagnetiche
.
.
.
.
.
.
.
.
.
.312
Informazioni
relative
ai
cavi
di
alimentanzione
.
.
.
.
.
.
.
.
.
.313
Informazioni
sui
cavi
PVC
(Polyvinyl
Chloride)
.
.
.
.
.
.
.
.
.
.314
Guida
di
riferimento
rapido
Inhoudsopgave
Belangrijke
veiligheidsinformatie
.
.
.
.
.
.
.
.
.
.
.
.
.
.
317
Omstandigheden
waarbij
onmiddellijk
actie
moet
worden
ondernomen
.
317
Algemene
veiligheidsrichtlijnen
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
318
Aanvullende
veiligheidsinformatie
.
.
.
.
.
.
.
.
.
.
.
.
.
.
321
Kennisgeving
lithiumbatterij
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
323
Veiligheidsvoorschriften
voor
de
modem
.
.
.
.
.
.
.
.
.
.
.
. 324
Verklaring
van
conformiteit
met
laserrichtlijnen
.
.
.
.
.
.
.
.
.
. 325
Aanvullende
hulp
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.327
Hoofdstuk
1.
De
werkplek
inrichten
.
.
.
.
.
.
.
.
.
.
.
.
.
327
Comfort
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
327
Hoofdstuk
2.
De
computer
installeren
.
.
.
.
.
.
.
.
.
.
.
.
331
De
computer
aanzetten
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.336
De
installatie
van
de
software
voltooien
.
.
.
.
.
.
.
.
.
.
.
.
.336
Belangrijk
om
te
doen
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.337
Het
besturingssysteem
bijwerken
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.337
Andere
besturingssystemen
installeren
.
.
.
.
.
.
.
.
.
.
.
.
.337
De
antivirussoftware
bijwerken
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.337
IBM
Setup
Utility
starten
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.338
De
computer
afsluiten
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.338
Computergegevens
noteren
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.338
Hoofdstuk
3.
Software
herstellen
.
.
.
.
.
.
.
.
.
.
.
.
.
.341
Herstelprocedure
uitvoeren
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.341
Herstelproblemen
oplossen
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.342
Stuurprogramma’s
installeren
of
herstellen
.
.
.
.
.
.
.
.
.
.
.
.343
Hoofdstuk
4.
Diagnose
en
probleemoplossing
.
.
.
.
.
.
.
.
.
.345
Elementaire
probleemoplossing
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.345
Diagnoseprogramma
(IBM
Enhanced
Diagnostics)
.
.
.
.
.
.
.
.
.347
Foutcodes
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.348
Geluidssignalen
bij
de
zelftest
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.351
Hoofdstuk
5.
Informatie,
hulp
en
service
.
.
.
.
.
.
.
.
.
.
.
.353
Informatie
opvragen
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.353
Informatie
over
hulp
en
service
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.353
Extra
services
aanschaffen
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.357
Bijlage
A.
Software-aanbod
van
IBM
Lotus
.
.
.
.
.
.
.
.
.
.
.359
©
Copyright
IBM
Corp.
2003
Bijlage
B.
IBM
Garantieverklaring
Z125-4753-07
11/2002
.
.
.
.
.
.363
Deel
1
-
Algemene
voorwaarden
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.363
Deel
2
-
Landspecifieke
voorwaarden
.
.
.
.
.
.
.
.
.
.
.
.
.
.367
Deel
3
-
Garantie-informatie
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.380
Garantiesupplement
voor
Mexico
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.390
Bijlage
C.
Kennisgevingen
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.391
Handelsmerken
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.392
Elektronische
emissie
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.393
Kennisgevingen
voor
het
netsnoer
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.397
Kennisgeving
voor
PVC-kabels
(polyvinylchloride)
en
-snoeren
.
.
.
.
.398
Naslagboek
Important
safety
information
This
information
can
help
you
safely
use
your
IBM
®
personal
computer.
Follow
and
retain
all
information
included
with
your
IBM
computer.
The
information
in
this
document
does
not
alter
the
terms
of
your
purchase
agreement
or
the
IBM
Statement
of
Limited
Warranty.
Customer
safety
is
important
to
IBM.
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
mobile
personal
computers,
IBM
ships
some
products
(such
as
speakers
or
monitors)
with
external
power
adapters.
If
you
have
such
a
product,
this
information
applies
to
your
product.
In
addition,
your
computer
product
may
contain
a
coin-sized
internal
battery
that
provides
power
to
your
system
clock
even
when
the
machine
is
unplugged,
so
the
battery
safety
information
applies
to
all
computers.
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
servicer.
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
machine.
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.
Frequently
inspect
your
computer
and
its
components
for
damage
or
wear
or
signs
of
danger.
If
you
have
any
question
about
the
condition
of
a
component,
do
not
use
the
product.
Contact
the
IBM
HelpCenter
®
or
the
product
manufacturer
for
instructions
on
how
to
inspect
the
product
and
©
Copyright
IBM
Corp.
2003
v
have
it
repaired,
if
necessary.
The
telephone
numbers
for
your
IBM
HelpCenter
location
are
located
in
the
“Help
and
Service”
section
later
in
this
guide.
In
the
unlikely
event
that
you
notice
any
of
the
conditions
listed
below,
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
IBM
HelpCenter
for
further
guidance.
The
telephone
numbers
for
your
HelpCenter
location
are
located
in
the
“Help
and
Service”
section
later
in
this
guide.
v
Power
cords,
plugs,
power
adapters,
extension
cords,
surge
protectors,
or
power
supplies
that
are
cracked,
broken
or
damaged.
v
Signs
of
overheating,
smoke,
sparks
or
fire.
v
Damage
to
a
battery
(such
as
cracks,
dents,
creases),
discharge
from
a
battery,
or
a
buildup
of
foreign
substances
on
the
battery.
v
A
cracking,
hissing
or
popping
sound,
or
strong
odor
that
comes
from
the
product.
v
Signs
that
liquid
has
been
spilled
or
an
object
has
fallen
onto
the
computer
product,
the
power
cord
or
power
adapter.
v
The
computer
product,
the
power
cord
or
power
adapter
has
been
exposed
to
water.
v
The
product
has
been
dropped
or
damaged
in
any
way.
v
The
product
does
not
operate
normally
when
you
follow
the
operating
instructions.
Note:
If
you
notice
these
conditions
with
a
non-IBM
product
(such
as
an
extension
cord),
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
Do
not
attempt
to
service
a
product
yourself
unless
instructed
to
do
so
by
the
IBM
HelpCenter.
Use
only
an
IBM
authorized
service
provider
who
is
approved
to
repair
your
particular
product.
Note:
Some
parts
can
be
upgraded
or
replaced
by
the
customer.
These
parts
are
referred
to
as
Customer
Replaceable
Units,
or
CRUs.
IBM
expressly
identifies
CRUs
as
such,
and
provides
documentation
with
instructions
when
it
is
appropriate
for
customers
to
replace
those
parts.
You
must
closely
follow
all
vi
Quick
Reference
instructions
when
performing
such
replacements.
Always
make
sure
that
the
power
is
turned
off
and
that
the
product
is
unplugged
from
any
power
source
before
you
attempt
the
replacement.
If
you
have
any
questions
or
concerns,
contact
the
IBM
HelpCenter.
Power
cords
and
power
adapters
Use
only
the
power
cords
and
power
adapters
supplied
by
the
product
manufacturer.
Never
wrap
a
power
cord
around
the
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
the
cord
and
power
adapters
from
liquids.
For
instance,
do
not
leave
your
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
cord
or
power
adapter
has
been
stressed
by
misuse.
Liquids
can
also
cause
gradual
corrosion
of
the
power
cord
terminals
and/or
the
connector
terminals
on
the
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
and/or
shows
signs
of
overheating
(such
as
deformed
plastic)
at
the
ac
input
or
anywhere
on
the
power
adapter.
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.
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.
Important
safety
information
vii
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.
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.
Connect
and
disconnect
the
equipment
from
the
electrical
outlet
carefully
Batteries
All
IBM
personal
computers
contain
a
non-rechargeable
coin
cell
battery
to
provide
power
to
the
system
clock.
In
addition
many
mobile
products
such
as
Thinkpad
notebook
PCs
utilize
a
rechargeable
battery
pack
to
provide
system
power
when
in
portable
mode.
Batteries
supplied
by
IBM
for
use
with
your
product
have
been
tested
for
compatibility
and
should
only
be
replaced
with
IBM
approved
parts.
Never
attempt
to
open
or
service
any
battery.
Do
not
crush,
puncture,
or
incinerate
batteries
or
short
circuit
the
metal
contacts.
Do
not
expose
the
battery
to
water
or
other
liquids.
Only
recharge
the
battery
pack
strictly
according
to
instructions
included
in
the
product
documentation.
Battery
abuse
or
mishandling
can
cause
the
battery
to
overheat,
which
can
cause
gasses
or
flame
to
“vent”
from
the
battery
pack
or
coin
cell.
If
your
battery
is
damaged,
or
if
you
notice
any
discharge
from
your
battery
or
the
buildup
of
foreign
materials
on
the
battery
leads,
stop
using
the
battery
and
obtain
a
replacement
from
the
battery
manufacturer.
Batteries
can
degrade
when
they
are
left
unused
for
long
periods
of
time.
For
some
rechargeable
batteries
(particularly
Lithium
Ion
batteries),
leaving
a
battery
unused
in
a
discharged
state
could
increase
the
risk
of
a
battery
short
viii
Quick
Reference
circuit,
which
could
shorten
the
life
of
the
battery
and
can
also
pose
a
safety
hazard.
Do
not
let
rechargeable
Lithium-Ion
batteries
completely
discharge
or
store
these
batteries
in
a
discharged
state.
Heat
and
product
ventilation
Computers
generate
heat
when
turned
on
and
when
batteries
are
charging.
Notebook
PCs
can
generate
a
significant
amount
of
heat
due
to
their
compact
size.
Always
follow
these
basic
precautions:
v
Do
not
leave
the
base
of
your
computer
in
contact
with
your
lap
or
any
part
of
your
body
for
an
extended
period
when
the
computer
is
functioning
or
when
the
battery
is
charging.
Your
computer
produces
some
heat
during
normal
operation.
Extended
contact
with
the
body
could
cause
discomfort
or,
potentially,
a
skin
burn.
v
Do
not
operate
your
computer
or
charge
the
battery
near
flammable
materials
or
in
explosive
environments.
v
Ventilation
slots,
fans
and/or
heat
sinks
are
provided
with
the
product
for
safety,
comfort,
and
reliable
operation.
These
features
might
inadvertently
become
blocked
by
placing
the
product
on
a
bed,
sofa,
carpet,
or
other
flexible
surface.
Never
block,
cover
or
disable
these
features.
CD
and
DVD
drive
safety
CD
and
DVD
drives
spin
discs
at
a
high
speed.
If
a
CD
or
DVD
is
cracked
or
otherwise
physically
damaged,
it
is
possible
for
the
disc
to
break
apart
or
even
shatter
when
the
CD
drive
is
in
use.
To
protect
against
possible
injury
due
to
this
situation,
and
to
reduce
the
risk
of
damage
to
your
machine,
do
the
following:
v
Always
store
CD/DVD
discs
in
their
original
packaging
v
Always
store
CD/DVD
discs
out
of
direct
sunlight
and
away
from
direct
heat
sources
v
Remove
CD/DVD
discs
from
the
computer
when
not
in
use
v
Do
not
bend
or
flex
CD/DVD
discs,
or
force
them
into
the
computer
or
their
packaging
v
Check
CD/DVD
discs
for
cracks
before
each
use.
Do
not
use
cracked
or
damaged
discs
Additional
safety
information
DANGER
Electrical
current
from
power,
telephone,
and
communication
cables
is
hazardous.
To
avoid
a
shock
hazard:
Important
safety
information
ix
v
Do
not
connect
or
disconnect
any
cables
or
perform
installation,
maintenance,
or
reconfiguration
of
this
product
during
an
electrical
storm.
v
Connect
all
power
cords
to
a
properly
wired
and
grounded
electrical
outlet.
v
Connect
to
properly
wired
outlets
any
equipment
that
will
be
attached
to
this
product.
v
When
possible,
use
one
hand
only
to
connect
or
disconnect
signal
cables.
v
Never
turn
on
any
equipment
when
there
is
evidence
of
fire,
water,
or
structural
damage.
v
Disconnect
the
attached
power
cords,
telecommunications
systems,
networks,
and
modems
before
you
open
the
device
covers,
unless
instructed
otherwise
in
the
installation
and
configuration
procedures.
v
Connect
and
disconnect
cables
as
described
in
the
following
table
when
installing,
moving,
or
opening
covers
on
this
product
or
attached
devices.
To
connect:
1.
Turn
everything
OFF.
2.
First,
attach
all
cables
to
devices.
3.
Attach
signal
cables
to
connectors.
4.
Attach
power
cords
to
outlet.
5.
Turn
device
ON.
To
disconnect:
1.
Turn
everything
OFF.
2.
First,
remove
power
cords
from
outlet.
3.
Remove
signal
cables
from
connectors.
4.
Remove
all
cables
from
devices.
DANGER
Le
courant
électrique
provenant
de
l’alimentation,
du
téléphone
et
des
câbles
de
transmission
peut
présenter
un
danger.
Pour
éviter
tout
risque
de
choc
électrique
:
v
Ne
manipulez
aucun
câble
et
n’effectuez
aucune
opération
d’installation,
d’entretien
ou
de
reconfiguration
de
ce
produit
au
cours
d’un
orage.
v
Branchez
tous
les
cordons
d’alimentation
sur
un
socle
de
prise
de
courant
correctement
câblé
et
mis
à
la
terre.
v
Branchez
sur
des
socles
de
prise
de
courant
correctement
câblés
tout
équipement
connecté
à
ce
produit.
v
Lorsque
cela
est
possible,
n’utilisez
qu’une
seule
main
pour
connecter
ou
déconnecter
les
câbles
d’interface.;
v
Ne
mettez
jamais
un
équipement
sous
tension
en
cas
d’incendie
ou
d’inondation,
ou
en
présence
de
dommages
matériels.
v
Avant
de
retirer
les
carters
de
l’unité,
mettez
celle-ci
hors
tension
et
déconnectez
ses
cordons
d’alimentation,
ainsi
que
les
câbles
qui
la
relient
x
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Lenovo ThinkCentre M50 Quick Reference Manual

ThinkCentre M50
Lenovo
Brand
Lenovo
Model
ThinkCentre M50
Type
Quick Reference Manual
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