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Chapter 3: System Interface
3-3
Power
Indicates power is being supplied to the system's power supply unit. This LED should
normally be illuminated when the system is operating.
3-4 SATA Drive Carrier LEDs
Each SATA drive carrier has two LEDs.
Green:
• When illuminated, the green LED on the front of the SATA drive carrier
indicates drive activity. A connection to the SATA backplane enables this LED
to blink on and off when that particular drive is being accessed.
Red:
• There is no function associated with the red LED.