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Installing or replacing a hard disk drive . . . 83
Installing or replacing a hard disk drive
enablement module . . . . . . . . . . . 87
Replacing the front audio and USB
assembly . . . . . . . . . . . . . . . 88
Replacing the internal speaker. . . . . . . 89
Installing or replacing the microprocessor . . 90
Replacing the system board . . . . . . . 99
Replacing the power supply assembly . . . 102
Completing the parts replacement . . . . . 104
Chapter 11. Additional service
information . . . . . . . . . . . . . 105
Security features . . . . . . . . . . . . . . 105
Hardware-controlled passwords . . . . . . 105
Operating system password . . . . . . . 105
Vital product data. . . . . . . . . . . . 105
BIOS levels . . . . . . . . . . . . . . . . 105
Updating (ashing) the BIOS . . . . . . . . . 105
Updating (ashing) the BIOS from a disc. . . 105
Updating (ashing) the BIOS from your
operating system . . . . . . . . . . . . 106
Recovering from a POST/BIOS update failure . . 106
Power management . . . . . . . . . . . . 107
Automatic conguration and power interface
(ACPI) BIOS . . . . . . . . . . . . . . 107
Automatic Power-On features . . . . . . . 107
System memory speed . . . . . . . . . . . 107
Appendix A. Notices. . . . . . . . . 109
Television output notice . . . . . . . . . . . 110
European conformance CE mark . . . . . . . 110
Trademarks . . . . . . . . . . . . . . . . 110
Index. . . . . . . . . . . . . . . . . 111
iv ThinkStation Hardware Maintenance Manual