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Removing the hard disk drive . . . . . . . 79
Installing a hard disk drive . . . . . . . . 80
Replacing the optical drive . . . . . . . . . . 81
Removing the optical drive . . . . . . . . 82
Installing an optical drive . . . . . . . . . 82
Replacing the memory module . . . . . . . . 83
Removing the memory module . . . . . . 84
Installing a memory module. . . . . . . . 84
Replacing the microprocessor fan assembly . . . 85
Removing the microprocessor fan assembly . 85
Installing a microprocessor fan assembly . . 87
Replacing the microprocessor and heat sink
assembly . . . . . . . . . . . . . . . . . 88
Removing the microprocessor and heat sink
assembly . . . . . . . . . . . . . . . 89
Installing the microprocessor and heat sink
assembly . . . . . . . . . . . . . . . 90
Replacing the system board . . . . . . . . . 92
Removing the system board . . . . . . . 92
Installing a system board . . . . . . . . . 93
Replacing the internal speakers . . . . . . . . 94
Removing the internal speakers . . . . . . 94
Installing internal speakers . . . . . . . . 94
Replacing the rear I/O assembly. . . . . . . . 95
Removing the rear I/O assembly . . . . . . 95
Installing a rear I/O assembly . . . . . . . 96
Replacing the inverter . . . . . . . . . . . . 97
Removing the inverter . . . . . . . . . . 98
Installing an inverter . . . . . . . . . . . 99
Replacing the battery . . . . . . . . . . . . 100
Removing the battery . . . . . . . . . . 100
Installing a battery . . . . . . . . . . . 101
Replacing the power supply assembly . . . . . 101
Removing the power supply assembly . . . 101
Installing a power supply assembly . . . . . 103
Replacing the LCD panel. . . . . . . . . . . 105
Removing the LCD panel . . . . . . . . . 105
Installing an LCD panel . . . . . . . . . 106
Replacing the WIFI card . . . . . . . . . . . 107
Removing the WIFI card . . . . . . . . . 107
Installing the WIFI card. . . . . . . . . . 108
Installing a computer wall mount . . . . . . . 109
Completing the FRU installation . . . . . . . . 109
Installing a computer cover . . . . . . . . 110
Installing a computer stand . . . . . . . . 110
Chapter 10. Additional Service
Information . . . . . . . . . . . . . 113
Security features . . . . . . . . . . . . . . 113
Hardware controlled Passwords . . . . . . 113
Operating system password . . . . . . . 113
Vital product data. . . . . . . . . . . . 113
BIOS levels . . . . . . . . . . . . . . . . 113
Flash update procedures . . . . . . . . . . 113
Updating (ashing) the BIOS from a disc . . . . 114
Updating (ashing) the BIOS from your operating
system. . . . . . . . . . . . . . . . . . 115
Recovering from a POST/BIOS update failure . . 115
Power management . . . . . . . . . . . . 116
Automatic conguration and power interface
(ACPI) BIOS . . . . . . . . . . . . . . 116
Automatic Power-On features . . . . . . . 116
Appendix A. Notices. . . . . . . . . 117
Television output notice . . . . . . . . . . . 118
European conformance CE mark . . . . . . . 118
Trademarks . . . . . . . . . . . . . . . . 118
Index. . . . . . . . . . . . . . . . . 119
iv ThinkCentre Hardware Maintenance Manual