Lenovo ThinkSystem SR150 Maintenance Manual page 4

Install the top cover . . . . . . . . . . .
TPM card replacement (for Chinese Mainland
only) . . . . . . . . . . . . . . . . . . .
Remove the TPM card (for Chinese Mainland
only) . . . . . . . . . . . . . . . . .
Install the TPM card (for Chinese Mainland
only) . . . . . . . . . . . . . . . . .
VGA cable replacement. . . . . . . . . . . .
Remove the VGA cable . . . . . . . . . .
Install the VGA cable . . . . . . . . . . .
Complete the parts replacement . . . . . . . .
Chapter 4. Problem determination . . 95
Event logs . . . . . . . . . . . . . . . . .
Operator Panel and Error LEDs . . . . . . . . .
Power supply LEDs . . . . . . . . . . .
System-board LEDs . . . . . . . . . . .
General problem determination procedures . . . .
Resolving suspected power problems . . . . 100
Resolving suspected Ethernet controller
problems . . . . . . . . . . . . . . . 100
Troubleshooting by symptom . . . . . . . . . 101
Power on and power off problems . . . . . . 101
Memory problems . . . . . . . . . . . . 103
Hard disk drive problems . . . . . . . . . 104
Monitor and video problems . . . . . . . . 106
ThinkSystem SR150 Maintenance Manual
ii
87 Keyboard, mouse, or USB-device
problems . . . . . . . . . . . . . . . 108
88 Optional-device problems . . . . . . . . . 109
Serial-device problems . . . . . . . . . . 110
88
Intermittent problems . . . . . . . . . . . 111
Power problems . . . . . . . . . . . . . 112
89
Network problems . . . . . . . . . . . . 112
90
Observable problems . . . . . . . . . . . 113
90
Software problems . . . . . . . . . . . . 115
91
93
Appendix A. Getting help and
technical assistance . . . . . . . . . . 117
Before you call . . . . . . . . . . . . . . . 117
95
Collecting service data . . . . . . . . . . . . 118
97
Contacting Support . . . . . . . . . . . . . 119
98
98
Appendix B. Notices. . . . . . . . . . 121
99
Trademarks . . . . . . . . . . . . . . . . 122
Important notes . . . . . . . . . . . . . . . 122
Telecommunication regulatory statement . . . . . 122
Electronic emission notices . . . . . . . . . . 123
Taiwan BSMI RoHS declaration . . . . . . . 123
Taiwan import and export contact information . . . 123
Index . . . . . . . . . . . . . . . . . . 125