The following figure shows the LEDs on the system board. A lit LED on or beside a component identifies the component as the cause of an error.
| 1 | Slot 2 missing PCI riser card LED |
| 2 | Enclosure manager heartbeat LED |
| 3 | Battery LED |
| 4 | IMM heartbeat LED |
| 5 | Slot 1 missing PCI riser card LED |
| 6 | System error LED |
| 7 | Microprocessor 1 error LED |
| 8 | DIMM 1 through 8 error LEDs |
| 9 | Fan 1 error LED |
| 10 | Fan 2 error LED |
| 11 | Fan 3 error LED |
| 12 | Fan 4 error LED |
| 13 | Fan 5 error LED |
| 14 | Fan 6 error LED |
| 15 | 240 VA error LED |
| 16 | Power channel A error LED |
| 17 | Power channel B error LED |
| 18 | Power channel C error LED |
| 19 | Power channel D error LED |
| 20 | Power channel E error LED |
| 21 | AUX power channel error LED |
| 22 | RAID riser-card LED |
| 23 | Microprocessor 2 error LED |
| 24 | DIMM 9 through 16 error LEDs |
| 1 | Slot 2 missing PCI riser card LED |
| 2 | Enclosure manager heartbeat LED |
| 3 | Battery LED |
| 4 | IMM heartbeat LED |
| 5 | Slot 1 missing PCI riser card LED |
| 6 | Microprocessor 1 error LED |
| 7 | DIMM 1 through 8 error LEDs |
| 8 | Unused |
| 9 | Fan 1 error LED |
| 10 | Unused |
| 11 | Fan 2 error LED |
| 12 | Unused |
| 13 | Fan 3 error LED |
| 14 | Power channel A error LED |
| 15 | Power channel B error LED |
| 16 | Power channel C error LED |
| 17 | Power channel D error LED |
| 18 | Power channel E error LED |
| 19 | AUX power channel error LED |
| 20 | 240 VA error LED |
| 21 | RAID riser-card LED |
| 22 | System error LED |
| 23 | Microprocessor 2 error LED |
| 24 | DIMM 9 through 16 error LEDs |