Lenovo H520g Desktop - Manual (Page 4)

Replacing the microprocessor . . . . . . . 85
Replacing the system board . . . . . . . 88
Replacing the primary hard disk drive . . . . 90
Replacing the front audio and USB
assembly . . . . . . . . . . . . . . .
92
Completing the parts replacement . . . . . 93
Chapter 10. FRU lists . . . . . . . . . 95
Chapter 11. Additional service
information . . . . . . . . . . . . . .
99
Security features . . . . . . . . . . . . . . 99
Hardware-controlled passwords . . . . . . 99
Operating system password . . . . . . . 99
Vital Product Data . . . . . . . . . . . 99
BIOS levels . . . . . . . . . . . . . . . . 99
Flash update procedures . . . . . . . . . . 99
Updating (flashing) the BIOS from a disc. . . 100
Updating (flashing) the BIOS from your
operating system . . . . . . . . . . . .
101
Recovering from a POST and BIOS update
failure . . . . . . . . . . . . . . . .
101
Power management . . . . . . . . . . . . 102
Advanced Configuration and Power Interface
(ACPI) BIOS . . . . . . . . . . . . . .
102
Automatic Power-on features . . . . . . . 102
Appendix A. Notices . . . . . . . . . 103
Television output notice . . . . . . . . . . . 104
European conformance CE mark . . . . . . . 104
Trademarks . . . . . . . . . . . . . . . . 104
Index. . . . . . . . . . . . . . . . . 105
ii Lenovo H520gHardware Maintenance Manual