Lenovo ThinkCentre Edge 91 Hardware Maintenance Manual page 4

Chapter 9. Replacing FRUs (Machine
Types: 1857, 1893, and 1895) . . . .
Locations. . . . . . . . . . . . . . . . .
Locating connectors, controls, and indicators
on the front of your computer . . . . . . .
Locating connectors on the rear of your
computer . . . . . . . . . . . . . . .
Locating components . . . . . . . . . .
Locating parts on the system board . . . .
Locating internal drives . . . . . . . . .
Handling static-sensitive devices . . . . . . .
Installing or replacing hardware . . . . . . . .
Removing the computer cover. . . . . . .
Removing and reinstalling the front bezel . .
Accessing the system board components and
drives . . . . . . . . . . . . . . . .
Installing or replacing a PCI card . . . . . .
Installing or replacing a memory module . . .
Replacing the battery . . . . . . . . . .
Replacing the hard disk drive . . . . . . .
Replacing the optical drive . . . . . . . .
Replacing the power supply assembly . . .
Replacing the heat sink and fan assembly . .
Replacing the microprocessor . . . . . . .
Replacing the system board . . . . . . .
Replacing the system fan assembly
Replacing the front audio and USB
assembly . . . . . . . . . . . . . . .
Completing the parts replacement . . . . .
Chapter 10. FRU lists . . . . . . . .
Overall: 1852, 1853, 1855, 3247, and 3248 . . .
Mechanical FRUs . . . . . . . . . . . . .
Keyboard and Mouse . . . . . . . . . . . .
Adapters and miscellaneous FRUs . . . . . . .
Power Cords . . . . . . . . . . . . . . .
Recovery discs . . . . . . . . . . . . . .
Windows 7 Starter Recovery CD . . . . . .
Windows 7 Home Basic 32 Recovery CD . .
Windows 7 Home Premium 32 Recovery
CD . . . . . . . . . . . . . . . . .
Windows 7 Home Premium 64 Recovery
CD . . . . . . . . . . . . . . . . .
Windows 7 Professional 32 Recovery CD . .
Windows 7 Professional 64 Recovery CD . .
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ThinkCentre Hardware Maintenance Manual
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Overall: MT 1857, 1893, 1895, 3250, and 3253 . .
107
Mechanical FRUs . . . . . . . . . . . . .
Keyboard and Mouse . . . . . . . . . . . .
108
Adapters and miscellaneous FRUs . . . . . . .
108
Power Cords . . . . . . . . . . . . . . .
109
Recovery discs . . . . . . . . . . . . . .
111
111
112
112
113
114
116
118
119
120
123
126
Chapter 11. Additional service
130
information . . . . . . . . . . . . .
133
136
Security features . . . . . . . . . . . . . .
. . . . 139
140
141
BIOS levels . . . . . . . . . . . . . . . .
Updating (flashing) the BIOS from a disc . . . .
143
Updating (flashing) the BIOS from your operating
143
system . . . . . . . . . . . . . . . . . .
149
Recovering from a POST/BIOS update failure . .
152
Power management
177
178
183
183
Appendix A. Notices . . . . . . . . .
184
Television output notice . . . . . . . . . . .
185
European conformance CE mark . . . . . . .
Trademarks . . . . . . . . . . . . . . . .
186
Index. . . . . . . . . . . . . . . . .
189
190
Windows XP Professional 32 Recovery CD . .
Windows XP Professional Generic 32
Recovery CD . . . . . . . . . . . . .
Windows 7 Starter Recovery CD . . . . . .
Windows 7 Home Basic 32 Recovery CD . .
Windows 7 Home Premium 32 Recovery
CD . . . . . . . . . . . . . . . . .
Windows 7 Home Premium 64 Recovery
CD . . . . . . . . . . . . . . . . .
Windows 7 Professional 32 SP 1 Recovery
CD . . . . . . . . . . . . . . . . .
Windows 7 Professional 64 SP 1 Recovery
CD . . . . . . . . . . . . . . . . .
Windows XP Professional 32 Recovery CD . .
Windows XP Professional Generic Recovery
CD . . . . . . . . . . . . . . . . .
Hardware-controlled passwords . . . . . .
Operating system password . . . . . . .
Vital Product Data . . . . . . . . . . .
. . . . . . . . . . . .
Advanced Configuration and Power Interface
(ACPI) BIOS . . . . . . . . . . . . . .
Automatic Power-On features . . . . . . .
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