Lenovo M5800 Desktop - Manual (Page 4)

Replacing the front audio and USB
assembly . . . . . . . . . . . . . . .
88
Replacing the system fan. . . . . . . . . 89
Replacing the thermal sensor . . . . . . . 91
Replacing the WiFi units . . . . . . . . . 93
Installing or removing the rear WiFi antenna . 99
Installing or removing the front WiFi
antenna
. . . . . . . . . . . . . . . 100
Completing the parts replacement . . . . . 102
Chapter 9. Additional service
information . . . . . . . . . . . . .
105
Security features . . . . . . . . . . . . . . 105
Hardware-controlled passwords . . . . . . 105
Operating system password . . . . . . . 105
Vital Product Data . . . . . . . . . . . 105
BIOS levels . . . . . . . . . . . . . . . . 105
Flash update procedures . . . . . . . . . . 105
Updating (flashing) the BIOS from a disc. . . 106
Updating (flashing) the BIOS from your
operating system . . . . . . . . . . . .
107
Recovering from a POST and BIOS update
failure . . . . . . . . . . . . . . . .
107
Power management . . . . . . . . . . . . 108
Advanced Configuration and Power Interface
(ACPI) BIOS . . . . . . . . . . . . . .
108
Automatic Power-on features . . . . . . . 108
Appendix A. Notices . . . . . . . . . 109
Television output notice . . . . . . . . . . . 110
European conformance CE mark . . . . . . . 110
Trademarks . . . . . . . . . . . . . . . . 110
Index. . . . . . . . . . . . . . . . . 111
ii Lenovo M5800 Hardware Maintenance Manual