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System board

The system board executes all the major logic functions of the storage expansion node.

The following illustration shows the locations of the components on the system board.


Graphic illustrating the system-board components
Flash/RAID adapter connector
The storage expansion node supports an optional 512 MB or 1 GB flash/RAID adapter.
Light path diagnostics LEDs and light path button
Light path diagnostics is a system of LEDs in the storage expansion node and the attached compute node that you can use to diagnose problems. For more information, see Light path diagnostics.