Lenovo System x3300 M4 Installation And Service Manual page 34

• Power-supply error LED: When the power-supply error LED is lit, it indicates that the power supply
has failed.
Note: In a redundant-Power supply system, the power supply 1 is the default/primary power supply. If
power supply 1 fails, you must replace the power supply immediately.
• USB connectors: Connect a USB device to any of these connectors.
• Ethernet activity LEDs: When these LEDs are lit, they indicate that the server is transmitting to or
receiving signals from the Ethernet LAN that is connected to the Ethernet port.
• Ethernet link LEDs: When these LEDs are lit, they indicate that there is an active link connection on the
10BASE-T, 100BASE-TX, or 1000BASE-TX interface for the Ethernet port.
• Ethernet connectors: Use either of these connectors to connect the server to a network. When you use
the Ethernet 1 connector, the network can be shared with the IMM through a single network cable.
Power-supply LEDs
This section shows the power-supply LEDs on the server.
The following illustration shows the location of the power-supply LEDs (redundant power supplies) on
the rear of the server.
The following illustration shows the location of the power-supply LEDs (fixed power supplies) on the rear of
the server.
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System x3300 M4 Installation and Service Guide