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, Type 7998,” on page 235 to determine which components are CRUs and which
components are FRUs.
v
If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
Isolation
Procedure Code
Symptom
Action
FSPSP47
The system has
detected an error
within the PSI link.
Replace the system board and chassis assembly, as described in
“Replacing the Tier 2 system-board and chassis assembly” on page 274.
FSPSP48
A diagnostics
function detects an
external processor
interface problem.
If the CRUs called out before this procedure do not fix the problem,
contact IBM Support.
FSPSP49
A diagnostic function
detects an internal
processor interface
problem.
If the CRUs called out before this procedure do not fix the problem,
contact IBM Support.
FSPSP50
A diagnostic function
detects a connection
problem between a
processor chip and a
GX chip.
If the CRUs called out before this procedure do not fix the problem,
contact IBM Support.
FSPSP51
Runtime diagnostics
has detected a
memory bus
correctable error that
is exceeding
threshold. The
memory bus
correctable error does
not threaten the
system operation at
the moment.
However, the system
is operating under
degraded mode.
Replace the CRU called out after this FSPSP call. If the CRU that is
called out is a DIMM CRU, perform the following procedure:
1.
Replace both memory DIMMs of the pair on the microprocessor that
contains the failing CRU:
DIMM 1 (P1-C4)
Replace DIMMS 1 and 2.
DIMM 2 (P1-C3)
Replace DIMMS 1 and 2.
DIMM 3 (P1-C1)
Replace DIMMS 3 and 4.
DIMM 4 (P1-C2)
Replace DIMMS 3 and 4.
2.
See “Removing a memory module” on page 251 for location
information and the removal procedure.
3.
Install new memory DIMMs, as described in “Installing a memory
module” on page 251.
See “Supported DIMMs” on page 4 for more information.
FSPSP53
A network error has
occurred between the
Service Processor and
the network switch.
Replace the system board and chassis assembly, as described in
“Replacing the Tier 2 system-board and chassis assembly” on page 274.
214
JS12 Type 7998: Problem Determination and Service Guide
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