Power Supply Status Leds - Nvidia Mellanox SB7700 Hardware User Manual

Fan Status Rear LED Assignments (One LED per Fan)
LED Behavior
Solid Green
Solid Amber*
Off
* A limited number of MSB7800-ES2F system units may show Solid Red instead of Solid Amber.

Risk of Electric Shock! With the fan module removed, power pins are accessible within the
module cavity. Do not insert tools or body parts into the fan module cavity.

Power Supply Status LEDs

There are two power supply inlets in the system (for redundancy). The system can operate with only
one power supply connected. In case the power supply is an FRU, a second power supply unit can be
added to support hot-swap ability. Each power supply unit has a single 2 color LED on the right side
of the unit, that indicates the status of the unit.
Power Status LED
Rear Side Panel
The primary power supply (PS) unit is located on the left side, and the secondary unit is located on
the right side.
Power Supply Unit Status Front LED Assignments
LED Behavior
Solid Green
Description
A specific fan unit is operating.
A specific fan unit is missing or not
operating properly.
System boot
Description
All plugged (one or two) power supplies
are running normally.
Action Required
N/A
The fan unit should be replaced.
N/A
Action Required
N/A
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