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Locating connectors on the rear of your
computer . . . . . . . . . . . . . . .
72
Locating major FRUs and CRUs . . . . . .
73
Looking up FRU information . . . . . . .
75
Locating parts on the system board
. . . .
76
Locating internal drives . . . . . . . . .
78
For machine types: 3688, 3690, 3691, 3693, and
3695
. . . . . . . . . . . . . . . . . .
78
Locating connectors, controls, and indicators
on the front of your computer . . . . . . .
79
Locating connectors on the rear of your
computer . . . . . . . . . . . . . . .
80
Locating major FRUs and CRUs . . . . . .
81
Looking up FRU information . . . . . . .
83
Locating parts on the system board
. . . .
84
Locating internal drives . . . . . . . . .
86
Chapter 10. Replacing FRUs (for
machine types: 2551, 2552, 2553,
2554, and 2555) . . . . . . . . . . . .
87
Installing or replacing hardware . . . . . . . .
87
Handling static-sensitive devices
. . . . .
87
Installing external options
. . . . . . . .
87
Removing the computer cover. . . . . . .
88
Removing and reinstalling the front bezel . .
89
Installing or replacing a PCI card . . . . . .
90
Installing or replacing a memory module . . .
93
Installing or replacing the optical drive
. . .
95
Replacing the card reader . . . . . . . .
97
Replacing the heat sink and fan assembly . .
99
Replacing the front fan assembly
. . . . .
101
Replacing the rear fan assembly . . . . . .
102
Installing the solid state drive . . . . . . .
104
Replacing the primary hard disk drive . . . .
106
Replacing the secondary hard disk drive. . .
108
Installing the tertiary hard disk drive
. . . .
110
Replacing the power supply assembly
. . .
113
Replacing the microprocessor . . . . . . .
114
Replacing the system board
. . . . . . .
117
Completing the parts replacement . . . . .
120
Chapter 11. Replacing FRUs (for
machine types: 3688, 3690, 3691,
3693, and 3695) . . . . . . . . . . .
121
Installing or replacing hardware . . . . . . . .
121
Handling static-sensitive devices
. . . . .
121
Installing external options
. . . . . . . .
121
Opening the computer cover . . . . . . .
122
Removing and reinstalling the front bezel . .
122
Accessing the system board components and
drives . . . . . . . . . . . . . . . .
124
Installing or replacing a memory module . . .
125
Installing or replacing a PCI card . . . . . .
127
Installing or replacing the card reader . . . .
129
Replacing the battery . . . . . . . . . .
134
Installing the solid state drive . . . . . . .
135
Replacing the hard disk drive . . . . . . .
137
Replacing the optical drive . . . . . . . .
139
Replacing the heat sink and fan assembly . .
142
Replacing the power supply assembly
. . .
145
Replacing the microprocessor . . . . . . .
150
Replacing the cover presence switch . . . .
153
Replacing the internal speaker. . . . . . .
155
Replacing the front audio and USB
assembly . . . . . . . . . . . . . . .
157
Replacing the system fan. . . . . . . . .
159
Replacing the thermal sensor . . . . . . .
160
Replacing the power switch. . . . . . . .
163
Replacing the system board
. . . . . . .
164
Completing the parts replacement . . . . .
167
Chapter 12. Additional service
information . . . . . . . . . . . . .
169
Security features . . . . . . . . . . . . . .
169
Hardware-controlled passwords . . . . . .
169
Operating system password
. . . . . . .
169
Vital product data. . . . . . . . . . . .
169
BIOS levels . . . . . . . . . . . . . . . .
169
Flash update procedures
. . . . . . . . . .
169
Updating (flashing) the BIOS from a disc. . .
170
Updating (flashing) the BIOS from your
operating system . . . . . . . . . . . .
171
Recovering from a POST/BIOS update
failure . . . . . . . . . . . . . . . .
171
Power management
. . . . . . . . . . . .
171
Automatic configuration and power interface
(ACPI) BIOS . . . . . . . . . . . . . .
172
Automatic Power-on features . . . . . . .
172
Appendix A. Notices . . . . . . . . .
173
Television output notice . . . . . . . . . . .
174
European conformance CE mark . . . . . . .
174
Trademarks . . . . . . . . . . . . . . . .
174
Index. . . . . . . . . . . . . . . . .
175
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ThinkStation Hardware Maintenance Manual
Summary of Contents for ThinkStation 2551
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