IBM eserver xSeries 350 User Reference Manual page 119

The following table describes the ac and dc power LEDs.
AC power LED
On On
On Off
Off Off
DC power LED
The power supply is on and operating correctly.
There is a dc power problem.
Possible causes:
1. The server is not turned on (the power LED is blinking on the front
of the server).
Action: Press the power-control button to start the server.
2. The power supply has failed.
Action: Replace the power supply.
If the problem persists, have the system serviced.
There is an ac power problem.
Possible causes:
1. There is no ac power to the power supply.
Actions:
2. The power supply has failed.
Action: Replace the power supply.
If the problem persists, have the system serviced.
Description and action
Verify that:
• The electrical cord is properly connected to the
server.
• The electrical outlet functions properly.
Chapter 6. Solving problems
107