Lenovo ThinkServer TD200, Hardware Maintenance Manual

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• Power supply
• Power cord
• ServeRAID SAS/SATA adapter
• System board assembly
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 3. Power-supply LEDs
Power-supply LEDs
AC DC Error Description Action Notes
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. Turn the server off and then turn the
server back on.
4. If the problem remains, replace the
power supply.
This is a normal
condition when no
ac power is present.
Off Off On
No ac power
to the server or
a problem with
the ac power
source and the
power supply
had detected an
internal problem 1. Replace the power supply.
2. Make sure that the power cord is
connected to a functioning power
source.
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 Power supply
not fully seated,
faulty system
board, or faulty
power supply 1. Reseat the power supply.
2. If the system board error (fault) LED is
not lit, replace the power supply.
3. If the system board error (fault) LED is lit,
(Trained service technician only) replace
the system board.
Typically indicates
that a power supply
is not fully seated.
On Off or
Flashing
On Faulty power
supply Replace the power supply.
On On Off Normal
operation
On On On Power supply
is faulty but still
operational Replace the power supply.
Diagnostic programs and messages
The diagnostic programs are the primary method of testing the major components of the server. As you
run the diagnostic programs, text messages are displayed on the screen and are saved in the test log. A
Chapter 5
.
Diagnostics
69