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Table 10. Light path diagnostics panel LEDs (continued)
• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• See "Parts listing" to determine which components are customer replaceable units (CRU) and which
components are field replaceable units (FRU).
• If an action step is preceded by "(Trained service technician only)", that step must be performed only by a
trained service technician.
Description
LED
PS
Power supply 1 or 2 has failed.
When both the PS and CNFG
LEDs are lit, the power supply
configuration is invalid.
PCI
An error has occurred on a PCI
bus or on the system board. An
additional LED is lit next to a
failing PCI slot.
SP
A service processor error has
been detected.
FAN
A fan has failed, is operating too
slowly, or has been removed. The
TEMP LED might also be lit.
System x3550 M3Problem Determination and Service Guide
388
Action
1. Check the power-supply that has an lit amber LED (see
"Power-supply LEDs" on page
2. Make sure that the power supplies are seated correctly.
3. Remove one of the power supplies to isolate the failed
power supply.
4. Make sure that both power supplies installed in the server
are of the same type.
5. Replace the failed power supply.
1. Check the LEDs on the PCI slots to identify the component
that caused the error.
2. Check the system-error log for information about the error.
3. If you cannot isolate the failing adapter by using the LEDs
and the information in the system-error log, remove one
adapter at a time from the failing PCI bus; and restart the
server after each adapter is removed.
4. Replace the following components, in the order shown,
restarting the server each time:
• PCI riser card
• (Trained service technician only) Replace the system
board.
5. For more information, go to
entry/portal/docdisplay?lndocid=SERV-CALL
1. Shut down the system and remove the power cords from
the server; then, reconnect the server to power and restart
the server.
2. Update the IMM firmware.
3. (Trained service technician only) Replace the system
board, if the problem remains.
4. For more information, go to
entry/portal/docdisplay?lndocid=SERV-CALL
1. Reseat the failing fan, which is indicated by a lit LED near
the fan connector on the system board.
2. Replace the failing fan, which is indicated by a lit LED near
the fan connector on the system board.
Note: If an LED near an unused fan connector on the
system board is lit, a PCI riser-card assembly might be
absent. Replace the PCI riser-card assembly. One PCI
riser-card assembly must always be present in PCI
connector 2.
391).
http://www.ibm.com/support/
.
http://www.ibm.com/support/
.
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