Lenovo 410554U Hardware Maintenance Manual page 6

Diagnostic error codes . . . . . . . . . . .
Beep symptoms . . . . . . . . . . . . . .
POST error codes . . . . . . . . . . . . .
Miscellaneous error messages . . . . . . . .
Undetermined problems . . . . . . . . . . .
Chapter 10. Replacing FRUs (Type
4105, 4157, 4217) . . . . . . . . . . . 75
Locating controls and connectors on the front of
your computer . . . . . . . . . . . . . . .
Rear connectors . . . . . . . . . . . . . .
Removing the cover . . . . . . . . . . . .
Locations. . . . . . . . . . . . . . . . .
Locating parts on the system board . . . . . .
Removing the front bezel
Replacing the power supply . . . . . . . . .
Replacing a memory module . . . . . . . . .
Replacing a PCI adapter card . . . . . . . . .
Replacing the heat sink . . . . . . . . . . .
Replacing the microprocessor
Replacing the system board . . . . . . . . .
Replacing a hard disk drive. . . . . . . . . .
Replacing the hard disk drive fan assembly . . .
Replacing an optical drive . . . . . . . . . .
Replacing the diskette drive or card reader . . .
Replacing the front and rear fan assemblies . . .
Replacing the front panel connectors assembly . .
Replacing the power switch/LED assembly . . .
Replacing the battery . . . . . . . . . . . .
Replacing the internal speaker . . . . . . . .
Completing the FRU replacement . . . . . . .
Chapter 11. Replacing FRUs (Type
4155, 4158, 4218) . . . . . . . . . .
Locating controls and connectors on the front of
your computer . . . . . . . . . . . . . . .
Rear connectors . . . . . . . . . . . . . .
Removing the cover . . . . . . . . . . . .
Locations. . . . . . . . . . . . . . . . .
Locating parts on the system board . . . . . .
Removing the front bezel
Replacing the power supply . . . . . . . . .
Installing or replacing a memory module . . . .
Replacing a PCI adapter card . . . . . . . . .
Replacing the heat sink . . . . . . . . . . .
Replacing the microprocessor
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ThinkStation Hardware Maintenance Manual
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. . . . . . . .
107
. . . . . . . . . .
. . . . . . . .
52 Replacing the system board . . . . . . . . .
69 Replacing a hard disk drive. . . . . . . . . .
70 Replacing the hard disk drive fan assembly . . .
71 Replacing an optical drive . . . . . . . . . .
73 Replacing the diskette drive or card reader . . .
Replacing the front and rear fan assemblies . . .
Replacing the front panel connectors assembly . .
Replacing the power switch/LED assembly . . .
Replacing the battery . . . . . . . . . . . .
75
Replacing the internal speaker . . . . . . . .
75
Completing the FRU replacement . . . . . . .
76
77
Chapter 12. FRU lists . . . . . . . .
79
Machine Type 4105 . . . . . . . . . . . . .
80
Machine Type 4155 . . . . . . . . . . . . .
80
Machine Type 4157 . . . . . . . . . . . . .
82
Machine Type 4158 . . . . . . . . . . . . .
84
Machine Type 4217 . . . . . . . . . . . . .
88
Machine Type 4218 . . . . . . . . . . . . .
90
Chapter 13. Additional Service
92
Information . . . . . . . . . . . . .
95
98 Security features . . . . . . . . . . . . . .
Hardware controlled Passwords . . . . . .
99
Operating system password . . . . . . .
100
102 Vital product data. . . . . . . . . . . .
103 BIOS levels . . . . . . . . . . . . . . . .
104 Flash update procedures
104 Updating (flashing) BIOS from a disc . . . .
Updating (flashing) BIOS from the operating
105
system . . . . . . . . . . . . . . . . . .
106
Recovering from a POST/BIOS update failure . .
Power management
Automatic configuration and power interface
(ACPI) BIOS . . . . . . . . . . . . . .
107
Automatic Power-On features . . . . . . .
107
Appendix A. Notices . . . . . . . .
108
Television output notice . . . . . . . . . . .
109
Trademarks . . . . . . . . . . . . . . . .
111
112
Appendix B. System memory
112
speed . . . . . . . . . . . . . . . .
114
116
Index. . . . . . . . . . . . . . . . .
119
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