Lenovo ThinkSystem SR250 V2 Maintenance Manual page 4

Remove a PCIe adapter (Riser) . . . . . . .
Install a PCIe adapter (Riser) . . . . . . . .
Remove the PCIe adapter (Slot 3) . . . . . .
Install the PCIe adapter (Slot 3) . . . . . . .
PCIe riser assembly replacement . . . . . . . .
Remove the PCIe riser assembly . . . . . .
Install the PCIe riser assembly . . . . . . . 101
Power supply unit replacement . . . . . . . . . 102
Remove the fixed power supply unit . . . . . 102
Install the fixed power supply unit . . . . . . 104
Remove a hot-swap power supply unit . . . . 105
Install a hot-swap power supply unit . . . . . 107
Power distribution board replacement . . . . . . 109
Remove the power distribution board . . . . 109
Install the power distribution board . . . . . 111
Processor replacement . . . . . . . . . . . . 114
Remove the processor . . . . . . . . . . 114
Install the processor . . . . . . . . . . . 115
Rack latches replacement . . . . . . . . . . . 117
Remove the rack latches . . . . . . . . . 117
Install the rack latches . . . . . . . . . . 119
Security bezel replacement . . . . . . . . . . 121
Remove the security bezel . . . . . . . . . 121
Install the security bezel . . . . . . . . . . 122
System board replacement (trained technician
only) . . . . . . . . . . . . . . . . . . . 123
Remove the system board . . . . . . . . . 123
Install the system board . . . . . . . . . . 125
Update the machine type and serial
number . . . . . . . . . . . . . . . . 128
Enable TPM . . . . . . . . . . . . . . 130
Enable UEFI Secure Boot . . . . . . . . . 132
Top cover replacement . . . . . . . . . . . . 132
Remove the top cover . . . . . . . . . . 132
Install the top cover . . . . . . . . . . . 134
VGA cable replacement. . . . . . . . . . . . 135
Remove the VGA cable (2.5-inch drive
model) . . . . . . . . . . . . . . . . 135
Install the VGA cable (2.5-inch drive
model) . . . . . . . . . . . . . . . . 136
Remove the VGA cable (3.5-inch drive
model) . . . . . . . . . . . . . . . . 137
Install the VGA cable (3.5-inch drive
model) . . . . . . . . . . . . . . . . 138
Complete the parts replacement . . . . . . . . 140
ThinkSystem SR250 V2 Maintenance Manual
ii
94 Chapter 5. Problem
95
determination . . . . . . . . . . . . . 141
97 Event logs . . . . . . . . . . . . . . . . . 141
The front operator panel and error LEDs . . . . . 143
98
99 Power supply LEDs . . . . . . . . . . . 144
99 System-board LEDs . . . . . . . . . . . 145
General problem determination procedures . . . . 146
Resolving suspected power problems . . . . 146
Resolving suspected Ethernet controller
problems . . . . . . . . . . . . . . . 147
Troubleshooting by symptom . . . . . . . . . 147
Power on and power off problems . . . . . . 148
Memory problems . . . . . . . . . . . . 149
Hard disk drive problems . . . . . . . . . 150
Monitor and video problems . . . . . . . . 152
Keyboard, mouse, KVM switch or USB-device
problems . . . . . . . . . . . . . . . 154
Optional-device problems . . . . . . . . . 155
Serial-device problems . . . . . . . . . . 157
Intermittent problems . . . . . . . . . . . 157
Power problems . . . . . . . . . . . . . 158
Network problems . . . . . . . . . . . . 159
Observable problems . . . . . . . . . . . 159
Software problems . . . . . . . . . . . . 162
Appendix A. Hardware
disassembling for recycle . . . . . . . 163
Disassemble the server for chassis recycle . . . . 163
Appendix B. Getting help and
technical assistance . . . . . . . . . . 165
Before you call . . . . . . . . . . . . . . . 165
Collecting service data . . . . . . . . . . . . 166
Contacting Support . . . . . . . . . . . . . 167
Appendix C. Notices. . . . . . . . . . 169
Trademarks . . . . . . . . . . . . . . . . 170
Important notes . . . . . . . . . . . . . . . 170
Telecommunication regulatory statement . . . . . 170
Electronic emission notices . . . . . . . . . . 171
Taiwan BSMI RoHS declaration . . . . . . . 171
Taiwan import and export contact information . . . 171
Index . . . . . . . . . . . . . . . . . . 173