Lenovo ThinkSystem DE Series - Page 4

Understanding the controller LEDs and
displays . . . . . . . . . . . . . . . . . . 173
LEDs on the rear of controllers . . . . . . . 174
LEDs on the operator display panel . . . . . 176
LEDs on the drives . . . . . . . . . . . . 179
LEDs on the IOMs . . . . . . . . . . . . 180
LEDs on the power-fan canister. . . . . . . 181
Seven-segment display overview . . . . . . 182
Critical Events Reference . . . . . . . . . . . 186
Appendix A. Getting help and
technical assistance . . . . . . . . . . 277
Appendix B. Notices. . . . . . . . . . 279
Trademarks . . . . . . . . . . . . . . . . 280
Important notes . . . . . . . . . . . . . . . 280
Particulate contamination . . . . . . . . . . . 280
Telecommunication regulatory statement. . . . . 281
Electronic emission notices . . . . . . . . . . 281
Taiwan BSMI RoHS declaration . . . . . . . 282
Taiwan import and export contact information . . . 282
Index . . . . . . . . . . . . . . . . . . 283
ii ThinkSystem DE Series Hardware Installation and Maintenance Guide for 2U Enclosures