Many
Manuals
search
Categories
Brands
Home
Lenovo
Motherboards
THINKCENTRE 2491
User Manual
Lenovo THINKCENTRE 2491 User Manual Page 102
Download
Share
Sharing
Add to my manuals
Print
Page
/
194
Table of contents
BOOKMARKS
Rated
.
/ 5. Based on
customer reviews
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
4.
P
ress
the
metal
clip
1
as
shown
and
then
lift
the
power
adapter
br
acket
up
to
r
emove
it
from
the
chassis.
Figure
33.
Removing
the
ac
power
adapter
bracket
5.
Slide
the
ac
power
adapt
er
out
of
the
brack
et.
96
ThinkCentre
Hardwar
e
Maint
enance
Manual
1
2
...
97
98
99
100
101
102
103
104
105
106
107
...
193
194
ThinkCentre
1
HardwareMaintenanceManual
1
“Safetyinformation”onpage3
4
Contents
5
Chapter10.Additionalservice
6
AppendixA.Notices.........183
6
Index.................185
6
Chapter1.Aboutthismanual
7
Chapter2.Safetyinformation
9
Voltage-selectionswitch
11
Safetyinspectionguide
11
Groundingrequirements
12
Chapter2.Safetyinformation7
13
.Safetyinformation9
15
Chapter2.Safetyinformation11
17
.Safetyinformation13
19
.Safetyinformation15
21
Chapter2.Safetyinformation17
23
Chapter2.Safetyinformation19
25
.Safetyinformation21
27
Chapter2.Safetyinformation23
29
.Safetyinformation25
31
Chapter2.Safetyinformation27
33
Chapter3.Generalinformation
35
Specications
37
Chapter4.Generalcheckout
39
Problemdeterminationtips
40
Chapter4.Generalcheckout35
41
Chapter5.Diagnostics
43
Runningtests
44
Testresults
45
QuickandFullerase-harddrive
45
Viewingthetestlog
46
Viewingandchangingsettings
47
Usingpasswords
47
Passwordconsiderations
48
Power-OnPassword
48
AdministratorPassword
48
HardDiskPassword
48
Enablingordisablingadevice
49
Selectingastartupdevice
50
Smartperformancechoices
50
Chapter7.Symptom-to-FRUindex
53
.Symptom-to-FRUindex49
55
.Symptom-to-FRUindex51
57
.Symptom-to-FRUindex53
59
.Symptom-to-FRUindex55
61
.Symptom-to-FRUindex57
63
.Symptom-to-FRUindex59
65
.Symptom-to-FRUindex61
67
Beepsymptoms
69
POSTerrorcodes
69
Miscellaneouserrormessages
71
Undeterminedproblems
72
Chapter8.ReplacingFRUs
75
Locatingcomponents
77
Locatingpartsonthesystemboard
77
Openingthecomputercover
78
Figure6.Removingthefrontbezel
80
Chapter8.ReplacingFRUs75
81
Figure10.RemovingthePCIcard
82
Replacingtheharddiskdrive
83
Replacingtheopticaldrive
84
Chapter8.ReplacingFRUs79
85
Replacingthebattery
86
Replacingtheheatsink
87
Replacingthemicroprocessor
88
Chapter8.ReplacingFRUs83
89
2onthemicroprocessor
91
Chapter8.ReplacingFRUs85
91
Replacingthesystemboard
92
2ofthemicroprocessorsocket
93
Chapter8.ReplacingFRUs87
93
Replacingthesystemfanassembly
94
Chapter8.ReplacingFRUs89
95
Replacingtheinternalspeaker
97
.ReplacingFRUs93
99
Replacingtheacpoweradapter
100
Attention:
101
Chapter8.ReplacingFRUs97
103
Completingthepartsreplacement
104
Chapter9.FRUlists
105
.FRUlists101
107
.FRUlists103
109
.FRUlists105
111
.FRUlists107
113
MechanicalFRUs
114
.FRUlists109
115
.FRUlists111
117
KeyboardandMouse
119
.FRUlists115
121
.FRUlists117
123
.FRUlists119
125
.FRUlists121
127
.FRUlists123
129
.FRUlists125
131
.FRUlists127
133
.FRUlists129
135
.FRUlists131
137
.FRUlists133
139
.FRUlists135
141
.FRUlists137
143
.FRUlists139
145
.FRUlists141
147
.FRUlists143
149
.FRUlists145
151
AdaptersandmiscellaneousFRUs
153
PowerCords
155
.FRUlists151
157
.FRUlists153
159
.FRUlists155
161
Recoverydiscs
162
.FRUlists157
163
.FRUlists159
165
.FRUlists161
167
Windows7HomeBasic32RecoveryCD
168
.FRUlists163
169
.FRUlists165
171
.FRUlists167
173
.FRUlists169
175
.FRUlists171
177
.FRUlists173
179
.FRUlists175
181
.FRUlists177
183
©CopyrightLenovo2011
185
Powermanagement
187
AutomaticPower-Onfeatures
187
AppendixA.Notices
189
Televisionoutputnotice
190
Trademarks
190
*0A74394*
194
Comments to this Manuals
No comments
Publish
Related products and manuals for Motherboards Lenovo THINKCENTRE 2491
Motherboards Lenovo Computer Monitor 7098 User Manual
(798 pages)
Motherboards Lenovo Z61 User Manual
(76 pages)
Print document
Print page 102
Comments to this Manuals