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
