IBM x3550 M4 Type 7914 User Manual

AC power-supply LEDs:
Use this information to view AC power-supply LEDs.
The following minimum configuration is required for the DC LED on the power
supply to be lit:
v Power supply
v Power cord
Note: You must turn on the server for the DC LED on the power supply to be lit.
The following illustration shows the locations of the power-supply LEDs on the ac
power supply.
The following table describes the problems that are indicated by various
combinations of the power-supply LEDs on an ac power supply and suggested
actions to correct the detected problems.
AC power-supply LEDs
Description Action NotesAC DC Error (!)
On On Off Normal operation.
Off Off Off No ac power to the
server or a problem
with the ac power
source.
1. Check the ac power to the
server.
2. Make sure that the power
cord is connected to a
functioning power source.
3. Restart the server. If the error
remains, check the
power-supply LEDs.
4. If the problem remains,
replace the power-supply.
This is a normal
condition when no ac
power is present.
Off Off On The power supply
has failed.
Replace the power supply.
Off On Off The power supply
has failed.
Replace the power supply.
Off On On The power supply
has failed.
Replace the power supply.
Figure 89. AC power-supply LEDs
142 IBM System x3550 M4 Type 7914: Installation and Service Guide

IBM x3550 M4 Type 7914 Specifications

General

Brand	IBM
Model	x3550 M4 Type 7914
Category	Server
Language	English