1 LED Description
The PMB status LED can be in one of the following states:
Off
The source power is not delivered to the system board normally:
• The 300-watt power adapter is not working properly.
To resolve the issue:
• Check to see if the external power cords are correctly connected to the server and to a
working electrical output.
• Check to see if the connection of the cables between the power module board and the power
input board module is stable (see
“Cable routing for the power module board and power input
board module” on page 172
).
• Replace the power input board module or the power module board (see
“Power input board
module replacement” on page 118
or “Power module board replacement” on page 122).
Green
The source power is delivered to the system board normally. The server is or is ready to be
powered on.
System-board LEDs
The following illustrations show the light-emitting diodes (LEDs) on the system board.
Press the power button to light the LEDs on the system board when the power source has been removed
from the server.
Figure 140. System-board LEDs
192 ThinkEdge SE350 V2 User Guide
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