Table of Contents
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Replacing the microprocessor . . . . . . .
Replacing the system board . . . . . . .
assembly . . . . . . . . . . . . . . .
Completing the parts replacement . . . . .
Chapter 10. FRU lists . . . . . . . . . 95
information . . . . . . . . . . . . . . 99
Security features . . . . . . . . . . . . . .
Hardware-controlled passwords . . . . . .
Operating system password . . . . . . .
Vital Product Data . . . . . . . . . . .
BIOS levels . . . . . . . . . . . . . . . .
ii
Lenovo H520gHardware Maintenance Manual
. . . . . . . . . .
85
88
operating system . . . . . . . . . . . .
90
failure . . . . . . . . . . . . . . . .
92
93
(ACPI) BIOS . . . . . . . . . . . . . .
Automatic Power-on features . . . . . . .
Appendix A. Notices . . . . . . . . .
Television output notice . . . . . . . . . . .
99
European conformance CE mark . . . . . . .
99
Trademarks . . . . . . . . . . . . . . . .
99
99
Index. . . . . . . . . . . . . . . . .
99
99
. . . . . . . . . . . .
100
101
101
102
102
102
103
104
104
104
105
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Table of Contents
Troubleshooting
