IBM System x3550 M3 Type 4254 Problem Determination And Service Guide

Table 7. 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 4, “Parts listing, System x3550 M3 Types 4254 and 7944,” on page 159 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
OVER SPEC
(Continued)
The power supplies are using
more power than their maximum
rating.
If the 12 V channel E error LED is lit, complete the following
steps:
1. Turn off the server and disconnect the power from the
server.
2. Remove the PCI riser card from PCI riser connector 2 and
the microprocessor in socket 2.
3. Restart the server to see whether the problem remains.
4. Reinstall each device that you removed in step 2 one at a
time, starting the server each time, to isolate the failing
device.
5. Replace any failing device.
6. (Trained service technician only) Replace the system
board.
If the 12 V AUX channel error LED is lit, complete the
following steps:
1. Turn off the server and disconnect the power from the
server.
2. Remove all PCI Express and PCI-X cards, all PCI riser
cards, the operator information panel, and the Ethernet
adapter (if installed).
Note: The server will not power-on when the
microprocessor in socket 1 or 2 is not installed in the
server. (Trained service technician only) Toggle the switch
block (SW4), bit 3 to allow the server to power-on. See
“System-board switches and jumpers” on page 18 for the
location of the SW4 switch block on the system board.
3. Restart the server to see whether the problem remains.
4. Reinstall each device that was removed in step 2 one at a
time, starting the server each time, to isolate the failing
device.
5. Replace any failing device.
6. (Trained service technician only) Replace the system
board.
LOG An error occurred. Check the IMM system event log and the system-error log for
information about the error. Replace any components that are
identified in the error logs.
LINK Reserved.
PS Power supply 1 or 2 has failed.
1. Check the power-supply that has an lit amber LED (see
“Power-supply LEDs” on page 110).
2. Make sure that the power supplies are seated correctly.
3. Remove one of the power supplies to isolate the failed
power supply.
4. Replace the failed power supply.
106 IBM System x3550 M3 Types 4254 and 7944: Problem Determination and Service Guide

IBM System x3550 M3 Type 4254 Specifications

General

Brand	IBM
Model	System x3550 M3 Type 4254
Category	Server
Language	English