NIC1 (GLAN1): Associated with the Management port. It indicates network activity when flashing.
NIC2 (GLAN2): Unused. Will always be off.
HDD: Indicates IDE channel activity or SATA drive activity when flashing.
Power: Indicates power is being supplied to the system power supply. This LED should be illuminated when
the system is operating.
Power Failure: When this LED flashes, it indicates a power failure in the power supply.