System-board LEDs
See this topic to identify the light-emitting diodes (LEDs) on the system board.
Figure 1. System-board LEDs


| 1 DIMM error LED (10 to 6) | 5 ME heartbeat LED |
| 2 Processor error LED | 6 XCC heartbeat LED |
| 3 DIMM error LED (5 to 1) | 7 FPGA heartbeat LED |
| 4 System error LED |
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