Lenovo M4350 Desktop - Manual (Page 4)

Replacing the heat sink and fan assembly . . 88
Replacing the microprocessor . . . . . . . 90
Replacing the system board . . . . . . . 92
Replacing the WiFi units . . . . . . . . . 94
Installing or removing the rear WiFi antenna . . 100
Installing or removing the front WiFi
antenna
. . . . . . . . . . . . . . . 101
Completing the parts replacement . . . . . 103
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 M4350 Hardware Maintenance Manual