IBM 7378, Problem Determination And Service Manual

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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 x3400 M3 Types 7378 and 7379,” on page 141 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.
The Processor CPU n Status has
Failed with FRB1/BIST condition.
(
n = microprocessor number)
Error A processor failed -
FRB1/BIST condition has
occurred.
1. Check for a server firmware
update.
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.
2. Make sure that the installed
microprocessors are
compatible with each other
(see “Installing a
microprocessor and heat sink”
on page 286 for information
about microprocessor
requirements).
3. (Trained service technician
only) Reseat microprocessor
n .
4. (Trained service technician
only) Replace microprocessor
n .
( n = microprocessor number)
The Processor CPU n Status has a
Configuration Mismatch.
(
n = microprocessor number)
Error A processor configuration
mismatch has occurred.
1. Make sure that the installed
microprocessors are
compatible with each other
(see “Installing a
microprocessor and heat sink”
on page 286 for information
about microprocessor
requirements).
2. (Trained service technician
only) Replace the
incompatible microprocessor.
Chapter 3. Diagnostics
39