Lenovo ThinkServer TS200 Hardware Maintenance Manual page 73

1
AC power LED
2
DC power LED
3
Fault LED
4
Fault LED
5
Power LED
The following table describes the problems that are indicated by various combinations of the power supply
LEDs and the power-on LED on the front information panel and suggested actions to correct the detected
problems.
Table 4. power supply LEDs
power supply LEDs
AC DC Error
Off Off Off
Off Off On
Off On Off
Off On On
On Off Off
Description Action
No ac power to 1. Check the ac power to the server.
the server or a
2. Make sure that the power cord is
problem with the
connected to a functioning power
ac power source
source.
3. Turn the server off and then turn the
server back on.
4. If the problem remains, replace the
power supply.
No ac power 1. Replace the power supply.
to the server or
2. Make sure that the power cord is
a problem with
connected to a functioning power
the ac power
source.
source and the
power supply
had detected an
internal problem
Faulty power Replace the power supply.
supply
Faulty power Replace the power supply.
supply
Power supply 1. Reseat the power supply.
not fully seated,
2. If the system board error (fault) LED is
faulty system
not lit, replace the power supply.
board, or faulty
3. If the system board error (fault) LED is lit,
power supply
(Trained service technician only) replace
the system board.
Notes
This is a normal
condition when no
ac power is present.
This happens only
when a second
power supply is
providing power to
the server.
Typically indicates
that a power supply
is not fully seated.
65
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Chapter 4 Diagnostics