Light path diagnostic LEDs - BladeCenter T and BladeCenter HT chassis

The system LEDs are displayed on the media tray.

System LED panel

The following system LEDs are displayed:
Power-on
When this green LED is lit, power is present in the BladeCenter HT unit. When this LED is off, the power subsystem, the power module, or the LED has failed.
Attention
If the power-on LED is off, it does not mean that electrical current is not present in the BladeCenter HT unit. The LED might be defective. To remove all electrical current from the BladeCenter HT chassis, you must disconnect all power cords from all power input connectors.
Location
When this blue LED is lit or flashing, it has been turned on by the system administrator to aid in visually locating the BladeCenter HT unit. If a blade server requires attention, the location LED on the blade server usually will also be lit. After the BladeCenter HT unit has been located, the system administrator turns off the location LED.
Critical system fault
When this LED is lit, the BladeCenter HT chassis has a critical system fault. A critical system fault is an error or event that is detected by the system with a significant impact to the system. In this case, the system cannot continue to operate or is operating in a non-redundant power configuration or a non-redundant cooling configuration.
Note: The color of this LED can be set to amber or red through the management module.
Major system fault
When this LED is lit, the BladeCenter HT unit has a major system fault. The system can continue to operate but might lose some function and performance.
Note: The color of this LED can be set to amber or red through the management module.
Minor system fault
When this amber LED is lit, the BladeCenter HT unit has a minor system fault. The system can continue to operate, usually without noticeable loss of functionality or performance.
Media tray fault
When this amber LED is lit, there is a fault on the media tray. The system can continue to operate, usually without the use of the components on the media tray.