Lenovo RD210 - Manual (Page 49)

System-board LEDs
The following illustration shows the light-emitting diodes (LEDs) on the system
board.
1 Slot 2 missing PCI riser card LED 13 Fan 6 error LED
2 Enclosure manager heartbeat LED 14 Power channel A error LED
3 Battery LED 15 Power channel B error LED
4 IMM heartbeat LED 16 Power channel C error LED
5 Slot 1 missing PCI riser card LED 17 Power channel D error LED
6 Microprocessor 1 error LED 18 Power channel E error LED
7 DIMM 1-8 error LEDs 19 Power channel F error LED
8 Fan 1 error LED 20 240 VA error LED
9 Fan 2 error LED 21 SAS/SATA RAID riser card LED
10 Fan 3 error LED 22 System error LED
11 Fan 4 error LED 23 Microprocessor 2 error LED
12 Fan 5 error LED
Chapter 4. Server controls, LEDs, and power 33