IBM System x3750 M4 User Manual

Table 24. Power-supply LED descriptions and actions to correct detected problems (continued)
Power-supply LEDs
Description Action NotesAC DC Error
Off Off On No input power to the
power supply or the
power supply has
detected an internal
problem.
v Make sure that the power
cord is connected to a
functioning power source.
v Replace the power supply.
This happens only
when a second
power supply is
providing power to
the server.
Off On Off Faulty power supply Replace the power supply.
Off On On Faulty power supply Replace the power supply.
On Off Off The system is off: The
system is connected to
ac power.
The server is
functioning
correctly.
The system is on:
Power supply not fully
seated, faulty system
board, or faulty power
supply.
1. Reseat the power supply.
2. Replace the power supply.
3. (Trained service technician
only) replace the system
board.
Typically indicates a
power supply is not
fully seated.
On Off On Faulty power supply Replace the power supply.
On On On Faulty power supply Replace the power supply.
Fan LEDs
This information provides the location of the fan LEDs.
The following illustration shows the location of the fan LEDs.
Hot-swap
fan error LED
Hot-swap fan
Fan latch
180 System x3750 M4 Types 8722 and 8733: Installation and Service Guide

IBM System x3750 M4 Specifications

General

Brand	IBM
Model	System x3750 M4
Category	Server
Language	English