| Label or Type | Color/State | Meaning |
|---|---|---|
| PSU1, PSU2 (Power Supplies) | Solid green | PSU is installed and providing power |
| Solid amber | PSU is installed but input power is disconnected or unit fault detected | |
| Off | PSU is not installed | |
| FAN | Solid green | All fans operating normally |
| Solid amber | A fan has been removed or fault detected | |
| Off | No power to fan modules | |
| SYS
(System) | Solid green | System loaded properly and is ready |
| Solid amber | Either the PSU or fan or both are faulty, not present, or the system has not loaded properly | |
| Off | CPU power is off | |
| PWR
(Power) | Solid green | Normal operation |
| Blinking green | System in reset | |
| Off | Unit not operational | |
| SECURE | Solid blue | Authentication complete |
| Very slow blinking blue (0.25Hz) | Bypass authentication (debug only) | |
| Fast blinking blue (4Hz) | Authentication failed | |
| Slow blinking blue (1Hz) | Authenticating or updating images | |
| Off | Authentication begin or fault |