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ThinkCentre Edge 91
Hardware Maintenance Manual
Page 87 (Monitor problems)
Lenovo ThinkCentre Edge 91 - Monitor problems
262 pages
Manual
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3.
At
the
rear
of
the
computer
,
remove
the
screw
that
secures
the
PCI
car
d
latch.
8
7
6
5
3
4
Figure
9.
Removing
the
screw
that
secures
the
PCI
card
latch
4.
Depending
on
whether
you
are
installing
or
replacing
a
PCI
card,
do
one
of
the
following:
•
If
you
ar
e
installing
a
PCI
card,
r
emove
the
appropriat
e
metal
slot
cover
.
Chapter
8
.
Replacing
FRUs
(Machine
T
ypes:
1852,
1853,
and
1855)
83
86
88
Table of Contents
Main Page
Table of Contents
3
Chapter 1. About this Manual
5
Important Safety Information
5
Chapter 2. Safety Information
7
General Safety
7
Electrical Safety
7
Voltage-Selection Switch
9
Safety Inspection Guide
9
Handling Electrostatic Discharge-Sensitive Devices
10
Grounding Requirements
10
Safety Notices (Multi-Lingual Translations)
10
Chapter 3. General Information
37
Lenovo Welcome
37
Lenovo Thinkvantage Tools
37
Lenovo Solution Center
37
Simpletap
37
Additional Information Resources
38
Specifications
38
For Machine Types: 1852, 1853, 1855, 3247, and 3248
38
For Machine Types: 1857, 1893, 1895, 3250, and 3253
39
Chapter 4. General Checkout
41
Problem Determination Tips
41
Chapter 5. Diagnostic Programs
43
Lenovo Thinkvantage Toolbox
43
Lenovo Solution Center
43
PC-Doctor for DOS
44
Creating a Diagnostic Disc
44
Running the Diagnostic Program from the Diagnostic Disc
44
Navigating through the Diagnostic Programs
44
Running Tests
44
Test Results
45
Viewing the Test Log
46
Chapter 6. Using the Setup Utility Program
47
Starting the Setup Utility Program
47
Viewing and Changing Settings
47
Using Passwords
47
Password Considerations
48
Power-On Password
48
Administrator Password
48
Hard Disk Password
48
Setting, Changing, and Deleting a Password
48
Erasing Lost or Forgotten Passwords (Clearing CMOS)
49
Enabling or Disabling a Device
49
Selecting a Startup Device
50
Selecting a Temporary Startup Device
50
Selecting or Changing the Startup Device Sequence
50
Enabling Erp Compliance Mode
50
Exiting the Setup Utility Program
51
Chapter 7. Symptom-To-FRU Index
53
Hard Disk Drive Boot Error
53
Power Supply Problems
53
Diagnostic Error Codes
53
Beep Symptoms
71
POST Error Codes
71
Miscellaneous Error Messages
73
Undetermined Problems
75
Chapter 8. Replacing Frus (Machine Types: 1852, 1853, and 1855)
77
Locations
77
Locating Connectors, Controls, and Indicators on the Front of Your Computer
78
Locating Connectors on the Rear of Your Computer
79
Locating Components
80
Locating Parts on the System Board
81
Locating Internal Drives
82
Handling Static-Sensitive Devices
82
Installing or Replacing Hardware
83
Removing the Computer Cover
83
Removing and Reinstalling the Front Bezel
84
Installing or Replacing a PCI Card
86
Installing or Replacing a Memory Module
89
Replacing the Battery
91
Replacing the Primary Hard Disk Drive
92
Replacing the Optical Drive
94
Replacing the Power Supply Assembly
96
Replacing the Heat Sink and Fan Assembly
98
Replacing the Microprocessor
100
Replacing the System Board
102
Replacing the Rear Fan Assembly
105
Replacing the Front Audio and USB Assembly
107
Completing the Parts Replacement
108
Chapter 9. Replacing Frus (Machine Types: 1857, 1893, and 1895)
111
Locations
111
Locating Connectors, Controls, and Indicators on the Front of Your Computer
111
Locating Connectors on the Rear of Your Computer
112
Locating Components
112
Locating Parts on the System Board
113
Locating Internal Drives
115
Handling Static-Sensitive Devices
115
Installing or Replacing Hardware
116
Removing the Computer Cover
116
Removing and Reinstalling the Front Bezel
117
Accessing the System Board Components and Drives
118
Installing or Replacing a PCI Card
120
Installing or Replacing a Memory Module
122
Replacing the Battery
123
Replacing the Hard Disk Drive
124
Replacing the Optical Drive
127
Replacing the Power Supply Assembly
130
Replacing the Heat Sink and Fan Assembly
134
Replacing the Microprocessor
137
Replacing the System Board
140
Replacing the System Fan Assembly
143
Replacing the Front Audio and USB Assembly
144
Completing the Parts Replacement
145
Chapter 10. FRU Lists
147
Overall: 1852, 1853, 1855, 3247, and 3248
147
Mechanical Frus
153
Keyboard and Mouse
156
Table of Contents
171
Default Chapter
172
Mt 1853: Cto 57Y4807
172
Mt 1853: Cto 57Y4808
172
Mt 1853: Cto 57Y4809
172
Mt 1853: Cto 57Y4810
172
Mt 1853: Cto 57Y4811
172
Mt 1853: Cto 57Y4812
172
Mt 1855: Cto
172
Mt 3248: Cto
172
Mt 1852: Cto
173
Mt 1853: Cto 57Y4814
175
Mt 1855: Cto
175
Mt 3248: Cto
175
FRU Lists
177
Adapters and Miscellaneous Frus
181
Power Cords
182
Recovery Discs
187
Windows 7 Starter Recovery CD
187
Windows 7 Home Basic 32 Recovery CD
188
Windows 7 Home Premium 32 Recovery CD
189
Windows 7 Home Premium 64 Recovery CD
190
Windows 7 Professional 32 Recovery CD
193
Windows 7 Professional 64 Recovery CD
194
Windows XP Professional 32 Recovery CD
196
Windows XP Professional Generic 32 Recovery CD
196
Overall: MT 1857, 1893, 1895, 3250, and 3253
206
Keyboard and Mouse
209
Adapters and Miscellaneous Frus
234
Power Cords
234
Recovery Discs
239
Windows 7 Starter Recovery CD
239
Windows 7 Home Basic 32 Recovery CD
240
Windows 7 Home Premium 32 Recovery CD
241
Windows 7 Home Premium 64 Recovery CD
242
Windows 7 Professional 32 SP 1 Recovery CD
245
Windows 7 Professional 64 SP 1 Recovery CD
246
Windows XP Professional 32 Recovery CD
248
Windows XP Professional Generic Recovery CD
248
Chapter 11. Additional Service Information
253
Security Features
253
Hardware-Controlled Passwords
253
Operating System Password
253
Vital Product Data
253
BIOS Levels
253
Updating (Flashing) the BIOS from a Disc
253
Updating (Flashing) the BIOS from Your Operating System
254
Recovering from a POST/BIOS Update Failure
254
Power Management
255
Advanced Configuration and Power Interface (ACPI) BIOS
255
Automatic Power-On Features
255
Appendix A. Notices
257
Television Output Notice
258
European Conformance CE Mark
258
Trademarks
258
Index
259
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