IBM System x3550 M3 Type 4254 Problem Determination And Service Manual page 91

Table 6. IMM error messages (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.
Fault in slot System board on system
%1.
(%1 =
CIM_ComputerSystem.ElementName)
Redundancy Bckup Mem Status has
been reduced.
Sensor Planar Fault has transitioned to
critical from a less severe state.
IMM Network Initialization Complete.
Error
Error Redundancy has been lost
and is insufficient to
continue operation.
Error A sensor has changed to
Critical state from a less
severe state.
Info An IMM network has
completed initialization.
1. Check the riser-card
LEDs.
2. Reseat the affected
adapters and riser
card.
3. Update the server
firmware (UEFI and
IMM) and adapter
firmware.
Important: Some
cluster solutions
require specific code
levels or coordinated
code updates. If the
device is part of a
cluster solution, verify
that the latest level of
code is supported for
the cluster solution
before you update the
code.
4. Make sure that the
adapter is on the
serverproven list.
5. Remove both adapters.
6. Replace the PCIe
adapter.
7. Replace the riser card.
8. (Trained service
technician only)
Replace the system
board.
1. Check the
system-event log for
DIMM failure events
(uncorrectable or PFA)
and correct the
failures.
2. Re-enable mirroring in
the Setup utility.
(Trained service technician
only) Replace the system
board.
No action; information only.
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Chapter 3. Diagnostics