Lenovo ThinkCentre M51 Hardware Maintenance Manual - Page 6

Replacing, Types, lists, Additional, Service, Information, Appendix., Notices - 8144

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Removing and replacing the diskette drive . . . 133 Removing and replacing the fan assembly . . . . 134 Replacing the cover and connecting the cables . . 135 Chapter 10. Replacing FRUs (Types 8098, 8171, 8172, 8173, 8424, and 8425 137 Locating controls and connectors on the front of the computer 137 Locating connectors on the rear of the computer 138 Opening the cover 138 Locating components 139 Identifying parts on the system board . . . . . 140 Removing and replacing memory 141 Replacing a PCI adapter 142 Removing and replacing the battery 143 Removing and replacing the power supply . . . 143 Removing and replacing the system board . . . 146 Removing and replacing the microprocessor . . . 147 Removing and replacing the hard disk drive . . . 152 Removing and replacing the optical drive . . . . 153 Removing and replacing the diskette drive . . . 154 Removing and replacing the fan assembly . . . . 154 Removing and replacing the internal speaker . . . 157 Removing and replacing the power button and LED assembly 157 Closing the cover and connecting cables . . . . 159 Chapter 11. FRU lists 161 Machine Type 8095 161 Machine Type 8098 167 Machine Type 8141 172 Machine Type 8142 187 Machine Type 8143 198 Machine Type 8144 214 Machine Type 8145 224 Machine Type 8146 231 Machine Type 8171 237 Machine Type 8172 255 Machine Type 8173 265 Machine Type 8420 272 Machine Type 8421 280 Machine Type 8422 287 Machine Type 8423 298 Machine Type 8424 310 Machine Type 8425 319 Machine Type 8427 328 Chapter 12. Additional Service Information 337 Security features 337 Hardware controlled Passwords 337 Operating system password 337 Vital product data 337 Management Information Format (MIF) . . . 337 BIOS levels 338 Flash update procedures 338 Updating (flashing) BIOS from a diskette or CD-ROM 338 Updating (flashing) BIOS from your operating system 338 Recovering from a POST/BIOS update failure 339 Power management 340 Automatic configuration and power interface (ACPI) BIOS 340 Automatic Power-On features 340 Recovering software using the Rescue and Recovery program 341 Starting the Rescue and Recovery workspace 341 Appendix. Notices 343 Television output notice 344 Trademarks 344 iv Hardware Maintenance Manual

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  • 352
Removing
and
replacing
the
diskette
drive
.
.
. 133
Removing
and
replacing
the
fan
assembly
.
.
.
. 134
Replacing
the
cover
and
connecting
the
cables
.
. 135
Chapter
10.
Replacing
FRUs
(Types
8098,
8171,
8172,
8173,
8424,
and
8425)
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 137
Locating
controls
and
connectors
on
the
front
of
the
computer
.
.
.
.
.
.
.
.
.
.
.
.
. 137
Locating
connectors
on
the
rear
of
the
computer
138
Opening
the
cover
.
.
.
.
.
.
.
.
.
.
.
. 138
Locating
components
.
.
.
.
.
.
.
.
.
.
. 139
Identifying
parts
on
the
system
board
.
.
.
.
. 140
Removing
and
replacing
memory
.
.
.
.
.
. 141
Replacing
a
PCI
adapter
.
.
.
.
.
.
.
.
.
. 142
Removing
and
replacing
the
battery
.
.
.
.
.
. 143
Removing
and
replacing
the
power
supply
.
.
. 143
Removing
and
replacing
the
system
board
.
.
. 146
Removing
and
replacing
the
microprocessor
.
.
. 147
Removing
and
replacing
the
hard
disk
drive
.
.
. 152
Removing
and
replacing
the
optical
drive
.
.
.
. 153
Removing
and
replacing
the
diskette
drive
.
.
. 154
Removing
and
replacing
the
fan
assembly
.
.
.
. 154
Removing
and
replacing
the
internal
speaker
.
.
. 157
Removing
and
replacing
the
power
button
and
LED
assembly
.
.
.
.
.
.
.
.
.
.
.
.
. 157
Closing
the
cover
and
connecting
cables
.
.
.
. 159
Chapter
11.
FRU
lists
.
.
.
.
.
.
.
. 161
Machine
Type
8095
.
.
.
.
.
.
.
.
.
.
. 161
Machine
Type
8098
.
.
.
.
.
.
.
.
.
.
. 167
Machine
Type
8141
.
.
.
.
.
.
.
.
.
.
. 172
Machine
Type
8142
.
.
.
.
.
.
.
.
.
.
. 187
Machine
Type
8143
.
.
.
.
.
.
.
.
.
.
. 198
Machine
Type
8144
.
.
.
.
.
.
.
.
.
.
. 214
Machine
Type
8145
.
.
.
.
.
.
.
.
.
.
. 224
Machine
Type
8146
.
.
.
.
.
.
.
.
.
.
. 231
Machine
Type
8171
.
.
.
.
.
.
.
.
.
.
. 237
Machine
Type
8172
.
.
.
.
.
.
.
.
.
.
. 255
Machine
Type
8173
.
.
.
.
.
.
.
.
.
.
. 265
Machine
Type
8420
.
.
.
.
.
.
.
.
.
.
. 272
Machine
Type
8421
.
.
.
.
.
.
.
.
.
.
. 280
Machine
Type
8422
.
.
.
.
.
.
.
.
.
.
. 287
Machine
Type
8423
.
.
.
.
.
.
.
.
.
.
. 298
Machine
Type
8424
.
.
.
.
.
.
.
.
.
.
. 310
Machine
Type
8425
.
.
.
.
.
.
.
.
.
.
. 319
Machine
Type
8427
.
.
.
.
.
.
.
.
.
.
. 328
Chapter
12.
Additional
Service
Information
.
.
.
.
.
.
.
.
.
.
.
. 337
Security
features
.
.
.
.
.
.
.
.
.
.
.
. 337
Hardware
controlled
Passwords
.
.
.
.
.
. 337
Operating
system
password
.
.
.
.
.
.
. 337
Vital
product
data
.
.
.
.
.
.
.
.
.
.
. 337
Management
Information
Format
(MIF)
.
.
. 337
BIOS
levels
.
.
.
.
.
.
.
.
.
.
.
.
.
. 338
Flash
update
procedures
.
.
.
.
.
.
.
.
.
. 338
Updating
(flashing)
BIOS
from
a
diskette
or
CD-ROM
.
.
.
.
.
.
.
.
.
.
.
.
.
. 338
Updating
(flashing)
BIOS
from
your
operating
system
.
.
.
.
.
.
.
.
.
.
.
.
.
. 338
Recovering
from
a
POST/BIOS
update
failure
339
Power
management
.
.
.
.
.
.
.
.
.
.
. 340
Automatic
configuration
and
power
interface
(ACPI)
BIOS
.
.
.
.
.
.
.
.
.
.
.
.
. 340
Automatic
Power-On
features
.
.
.
.
.
.
. 340
Recovering
software
using
the
Rescue
and
Recovery
program
.
.
.
.
.
.
.
.
.
.
.
. 341
Starting
the
Rescue
and
Recovery
workspace
341
Appendix.
Notices
.
.
.
.
.
.
.
.
. 343
Television
output
notice
.
.
.
.
.
.
.
.
.
. 344
Trademarks
.
.
.
.
.
.
.
.
.
.
.
.
.
. 344
iv
Hardware
Maintenance
Manual