Lenovo ThinkSystem ST50 V2 - Page 4

Processor replacement (trained technician
only) . . . . . . . . . . . . . . . . . . . 133
Remove the processor (trained technician
only) . . . . . . . . . . . . . . . . . 133
Install the processor (trained technician
only) . . . . . . . . . . . . . . . . . 135
Server replacement . . . . . . . . . . . . . 137
Remove the server from the rails . . . . . . 137
Install the server to the rails . . . . . . . . 139
Server cover replacement . . . . . . . . . . . 143
Remove the server cover . . . . . . . . . 143
Install the server cover . . . . . . . . . . 146
System board replacement (trained technician
only) . . . . . . . . . . . . . . . . . . . 148
Remove the system board (trained technician
only) . . . . . . . . . . . . . . . . . 148
Install the system board (trained technician
only) . . . . . . . . . . . . . . . . . 150
Thermal sensor replacement . . . . . . . . . . 153
Remove the thermal sensor . . . . . . . . 153
Install the thermal sensor . . . . . . . . . 156
Complete the parts replacement . . . . . . . . 158
Chapter 4. Problem
determination . . . . . . . . . . . . . 159
Event logs . . . . . . . . . . . . . . . . . 159
General problem determination procedures . . . . 159
List of POST error messages . . . . . . . . 160
Resolving suspected power problems . . . . 163
Resolving suspected Ethernet controller
problems . . . . . . . . . . . . . . . 163
Troubleshooting by symptom . . . . . . . . . 164
Power on and power off problems . . . . . . 164
Memory problems . . . . . . . . . . . . 165
Hard disk drive problems . . . . . . . . . 166
Monitor and video problems . . . . . . . . 167
Optional-device problems . . . . . . . . . 168
Intermittent problems. . . . . . . . . . . 169
Network problems . . . . . . . . . . . . 170
Observable problems. . . . . . . . . . . 171
Software problems. . . . . . . . . . . . 172
Chapter 5. Hardware disassembling
for recycle . . . . . . . . . . . . . . . 175
Disassemble the server for chassis recycle . . . . 175
Appendix A. Getting help and
technical assistance . . . . . . . . . . 177
Before you call . . . . . . . . . . . . . . . 177
Contacting Support . . . . . . . . . . . . . 178
Appendix B. Notices. . . . . . . . . . 179
Trademarks . . . . . . . . . . . . . . . . 180
Important notes . . . . . . . . . . . . . . . 180
Telecommunication regulatory statement. . . . . 180
Electronic emission notices . . . . . . . . . . 181
Taiwan BSMI RoHS declaration . . . . . . . 181
Taiwan import and export contact information . . . 181
ii ThinkSystem ST50 V2 Maintenance Manual