Table 5. Power-supply LEDs
v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See Chapter 4, “Parts listing, Type 7377 server,” on page 125 to determine which components are
customer replaceable units (CRU) and which components are field replaceable units (FRU).
v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
v Go to the IBM support Web site at http://www.ibm.com/systems/support/ to check for technical
information, hints, tips, and new device drivers or to submit a request for information.
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. 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. Replace the power supply.
3. (Trained service technician only)
Replace the system board.
Note: Make sure the technician
refreshes the VPD.
Typically indicates
that a power supply
is not fully seated.
On Off or
Flashing
On Faulty power
supply
Replace the power supply.
On On On Power supply is
faulty but still
operational
Replace the power supply.
IBM Dynamic System Analysis
IBM Dynamic System Analysis (DSA) collects and analyzes system information to
aid in diagnosing server problems. DSA collects the following information about the
server:
v Drive health information
v Event logs for ServeRAID controllers and service processors
Chapter 3. Diagnostics 59
To Next Page
Loading...
Need help?
General
