Power-Supply Leds - IBM 7378 Problem Determination And Service Manual

USB connectors
Ethernet connectors
Ethernet transmit/receive activity LED
Ethernet link status LED

Power-supply LEDs

The following illustration shows the locations of the 670-watt power supply LEDs.
Fault (error) LED
The following table describes the problems that are indicated by various
combinations of the power-supply LEDs. For more information about solving
power-supply problems, see "Power-supply LEDs" on page 96.
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IBM System x3400 M3 Types 7378 and 7379: Problem Determination and Service Guide
from the production network. You can use the Setup utility to configure the
server to use a dedicated systems management network or a shared
network.
Connect USB devices to these 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.
This LED is on the Ethernet connector. When this LED is lit, it indicates that
there is activity between the server and the network.
This LED is on the Ethernet connector. When this LED is lit, it indicates that
there is an active connection on the Ethernet port.
AC power LED
DC power LED
Power cord
connector