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Replacing the heat sink and fan assembly . . 95
Replacing the microprocessor. . . . . . . 97
Replacing the system board . . . . . . . 100
Replacing the primary hard disk drive . . . . 103
Replacing the secondary hard disk drive. . . 105
Replacing the front fan assembly . . . . . 107
Replacing the rear fan assembly . . . . . . 108
Replacing the front audio and USB
assembly . . . . . . . . . . . . . . . 110
Replacing the internal speaker. . . . . . . 111
Completing the parts replacement . . . . . 113
Chapter 9. Replacing FRUs (Machine
Types: 4466, 4471, 4474, 4477, 4480,
4485, 4496, 4498, 4503, 4512, 4514,
4518, 4554, 7005, 7023, 7033, 7035,
7072, 7079, and 7177.) . . . . . . . 115
Locations. . . . . . . . . . . . . . . . . 115
Locating connectors, controls, and indicators
on the front of your computer . . . . . . . 116
Locating connectors on the rear of your
computer . . . . . . . . . . . . . . . 117
Locating components . . . . . . . . . . 118
Locating parts on the system board . . . . 119
Locating internal drives . . . . . . . . . 120
Handling static-sensitive devices . . . . . . . 120
Installing or replacing hardware . . . . . . . . 121
Opening the computer cover . . . . . . . 121
Removing and reinstalling the front bezel . . 122
Accessing the system board components and
drives . . . . . . . . . . . . . . . . 124
Installing or replacing a memory module. . . 125
Installing or replacing a PCI card . . . . . . 126
Installing or replacing the card reader . . . . 128
Replacing the battery . . . . . . . . . . 133
Replacing the hard disk drive . . . . . . . 134
Replacing the optical drive . . . . . . . . 137
Replacing the heat sink and fan assembly . . 139
Replacing the power supply assembly . . . 142
Replacing the microprocessor. . . . . . . 147
Replacing the system board . . . . . . . 150
Replacing the system fan assembly . . . . 153
Replacing the internal speaker. . . . . . . 155
Replacing the front audio and USB
assembly . . . . . . . . . . . . . . . 159
Completing the parts replacement . . . . . 160
Chapter 10. FRU lists . . . . . . . . 163
Overall: MT 4468, 4473, 4476, 4479, 4495, 4497,
4499, 4504, 4513, 4517, 4524, 7021, 7032, 7034,
7049, 7052, 7053, 7073, 7136, and 7178 . . . . 163
Mechanical FRUs . . . . . . . . . . . . . 183
Keyboard and Mouse . . . . . . . . . . . . 194
Adapters and miscellaneous FRUs . . . . . . . 250
Power Cords . . . . . . . . . . . . . . . 254
Recovery discs . . . . . . . . . . . . . . 266
Windows 7 Professional 32 Recovery CD . . 266
Windows 7 Home Basic 32 Recovery CD . . 275
Windows 7 Home Premium 32 Recovery
CD . . . . . . . . . . . . . . . . . 278
Windows 7 Home Premium 64 Recovery
CD . . . . . . . . . . . . . . . . . 278
Windows 7 Professional 64 Recovery CD . . 283
Windows XP Professional 32 Recovery CD. . 291
Windows XP Professionally Generic 32
Recovery CD . . . . . . . . . . . . . 296
Windows Vista Business 32 Recovery CD . . 298
Windows Vista Home Basic 32 Recovery
CD . . . . . . . . . . . . . . . . . 298
Overall: MT 4466, 4471, 4474, 4477, 4480, 4485,
4496, 4498, 4503, 4512, 4514, 4518, 4554, 7005,
7023, 7033, 7035, 7072, 7079, and 7177 . . . . 300
Mechanical FRUs . . . . . . . . . . . . . 325
Keyboard and Mouse . . . . . . . . . . . . 342
Adapters and miscellaneous FRUs . . . . . . . 407
Power Cords . . . . . . . . . . . . . . . 411
Recovery discs . . . . . . . . . . . . . . 424
Windows 7 Professional 32 Recovery CD . . 424
Windows 7 Home Basic 32 Recovery CD . . 435
Windows 7 Home Premium 32 Recovery
CD . . . . . . . . . . . . . . . . . 439
Windows 7 Home Premium 64 Recovery
CD . . . . . . . . . . . . . . . . . 439
Windows 7 Professional 64 Recovery CD . . 445
Windows XP Professional 32 Recovery CD. . 455
Windows XP Professionally Generic 32
Recovery CD . . . . . . . . . . . . . 462
Windows Vista Business 32 Recovery CD . . 464
Windows Vista Home Basic 32 Recovery
CD . . . . . . . . . . . . . . . . . 465
Chapter 11. Additional service
information . . . . . . . . . . . . . 469
Security features . . . . . . . . . . . . . . 469
Hardware-controlled passwords . . . . . . 469
Operating system password . . . . . . . 469
Vital Product Data . . . . . . . . . . . 469
BIOS levels . . . . . . . . . . . . . . . . 469
Updating (ashing) the BIOS from a disc . . . . 469
Updating (ashing) the BIOS from your operating
system. . . . . . . . . . . . . . . . . . 470
Recovering from a POST and BIOS update
failure . . . . . . . . . . . . . . . . . . 470
Power management . . . . . . . . . . . . 471
iv ThinkCentre Hardware Maintenance Manual