IBM System x3550 M3, Installation And User Manual, Page: 37 / 160

Table 2. Light path diagnostics panel LEDs (continued)
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 3, "Parts listing", in the Problem Determination and Service Guide 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.
LED Description Action
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.
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:
v
PCI riser card
v
(Trained service technician only) Replace the system
board.
5. If the failure remains, go to http://www.ibm.com/systems/
support/supportsite.wss/docdisplay?brandind=5000008
&lndocid=SERV-CALL.
SP A service processor error has
been detected.
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 (see the Problem Determination
and Service Guide for more information).
3. (Trained service technician only) Replace the system
board, if the problem remains.
4. If the failure remains, go to http://www.ibm.com/systems/
support/supportsite.wss/docdisplay?brandind=5000008
&lndocid=SERV-CALL.
FAN A fan has failed, is operating too
slowly, or has been removed. The
TEMP LED might also be lit.
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.
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 (see
“Replacing a PCI riser-card assembly” on page 68). One
PCI riser-card assembly must always be present in PCI
connector 2.
TEMP The system temperature has
exceeded a threshold level. A
failing fan can cause the TEMP
LED to be lit.
1. Make sure that the heat sink is seated correctly.
2. Determine whether a fan has failed. If it has, replace it.
3. Make sure that the room temperature is not too high. See
Table 1 on page 6 for the server temperature information.
4. Make sure that the air vents are not blocked.
5. If the failure remains, go to http://www.ibm.com/systems/
support/supportsite.wss/docdisplay?brandind=5000008
&lndocid=SERV-CALL.
Chapter 1. The System x3550 M3 server
21