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Replacing the front audio and USB assembly . . 100
Replacing the internal speaker . . . . . . . . 101
Completing the FRU replacement . . . . . . . 103
Chapter 10. FRU lists . . . . . . . . 105
Overall: MT 4215, 4219, 4220, 4221, and 4222 . . 105
Mechanical FRUs . . . . . . . . . . . . . 116
Keyboard and Mouse . . . . . . . . . . . . 120
Adapters and miscellaneous FRUs . . . . . . . 141
Power Cords . . . . . . . . . . . . . . . 144
Recovery discs . . . . . . . . . . . . . . 150
Windows Vista Business 32 Recovery CD . . 150
Windows 7 Professional 64 Recovery CD . . 151
Windows 7 Professional 64 Ofce 2010 Starter
Recovery CD . . . . . . . . . . . . . 156
Windows XP Professional 64 Recovery CD . . 161
Windows XP Professional 64 Mono Recovery
CD . . . . . . . . . . . . . . . . . 161
Windows XP Professional Recovery CD . . . 162
Chapter 11. Additional service
information . . . . . . . . . . . . . 165
Security features . . . . . . . . . . . . . . 165
Hardware-controlled passwords . . . . . . 165
Operating system password . . . . . . . 165
Vital product data. . . . . . . . . . . . 165
BIOS levels . . . . . . . . . . . . . . . . 165
Updating (ashing) the BIOS . . . . . . . . . 165
Updating (ashing) the BIOS from a disc. . . 166
Updating (ashing) BIOS from your operating
system . . . . . . . . . . . . . . . . 166
Recovering from a POST/BIOS update failure . . 166
Power management . . . . . . . . . . . . 167
Automatic conguration and power interface
(ACPI) BIOS . . . . . . . . . . . . . . 167
Automatic Power-On features . . . . . . . 167
Appendix A. Notices. . . . . . . . . 169
Television output notice . . . . . . . . . . . 170
Trademarks . . . . . . . . . . . . . . . . 170
iv Hardware Maintenance Manual