| A | Chassis ID (blue) | Indicates that a matching chassis ID LED will be present at rear panel of chassis to ease identification when servicing the rear of the server in a rack. |
| B | System Status/Fault (green/amber) | Indicates system status or fault condition. |
| C | LAN1 (green) | Indicates 100/10Mb Ethernet port activity. |
| D | LAN2 (green) | Indicates 1000/100/10Mb Ethernet port activity. |
| E | HDD Activity/Fault (green/amber) | Indicates any server hard drive activity or fault condition. |
| F | Power (green) | When continuously lit, it indicates the presence of DC power in the server. The LED goes out when the power is turned off or the power source is disrupted. When flashing it indicates the system is in ACPI sleep mode. |
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