IBM 8863 Service Guide - Page 97

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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 3, "Parts listing, Type 8863," on page 93 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. System-error log message Action CPU IERR detected, the system has been restarted Information only; if the message persists: 1. (Trained service technician only) Reseat the microprocessors. 2. Reseat the microprocessor VRMs, if present. 3. (Trained service technician only) Replace the microprocessor. CPU IERR, the CPU has been disabled Information only; if the message persists: 1. (Trained service technician only) Reseat the microprocessors. 2. Reseat the microprocessor VRMs, if present. 3. (Trained service technician only) Replace the microprocessor. CPU non-critical over temperature warning 1. Make sure that the fans have good airflow and are not obstructed. 2. (Trained service technician only) Reseat the microprocessor heat sink. CPU non-recoverable over temperature fault 1. Make sure that the fans have good airflow and are not obstructed. 2. (Trained service technician only) Reseat the microprocessor heat sink. CPU mismatch: CPU unsupported by VRM. CPU nn, where nn is the CPU number. Replace the 10.1 VRM with a 10.2 VRM. CPU removal detected Informational only; if the message persists: 1. (Trained service technician only) Reseat the microprocessors. 2. Reseat the microprocessor VRMs, if present. CPU X Over Temperature 1. Check all fans and remove any obstacles from the path of the airflow. 2. Make sure that the room temperature is within the recommended range. 3. Make sure that the microprocessor heat sinks are correctly seated. Ethernet Data Rate modified from to Information only by user Ethernet Duplex setting modified from Information only to by user Ethernet interface by user Information only Ethernet locally administered MAC address modified from x:x:x:x:x:x Information only Ethernet MTU setting modified from x to y by user Information only Fan X Failure (X of 1-8) 1. Make sure that nothing is blocking the fan. 2. Check the physical connection and make sure that the fan is correctly seated. 3. Replace fan X. Chapter 2. Diagnostics 81

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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
3,
“Parts
listing,
Type
8863,”
on
page
93
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.
System-error
log
message
Action
CPU
IERR
detected,
the
system
has
been
restarted
Information
only;
if
the
message
persists:
1.
(Trained
service
technician
only)
Reseat
the
microprocessors.
2.
Reseat
the
microprocessor
VRMs,
if
present.
3.
(Trained
service
technician
only)
Replace
the
microprocessor.
CPU
IERR,
the
CPU
has
been
disabled
Information
only;
if
the
message
persists:
1.
(Trained
service
technician
only)
Reseat
the
microprocessors.
2.
Reseat
the
microprocessor
VRMs,
if
present.
3.
(Trained
service
technician
only)
Replace
the
microprocessor.
CPU
non-critical
over
temperature
warning
1.
Make
sure
that
the
fans
have
good
airflow
and
are
not
obstructed.
2.
(Trained
service
technician
only)
Reseat
the
microprocessor
heat
sink.
CPU
non-recoverable
over
temperature
fault
1.
Make
sure
that
the
fans
have
good
airflow
and
are
not
obstructed.
2.
(Trained
service
technician
only)
Reseat
the
microprocessor
heat
sink.
CPU
mismatch:
CPU
unsupported
by
VRM.
CPU
nn,
where
nn
is
the
CPU
number.
Replace
the
10.1
VRM
with
a
10.2
VRM.
CPU
removal
detected
Informational
only;
if
the
message
persists:
1.
(Trained
service
technician
only)
Reseat
the
microprocessors.
2.
Reseat
the
microprocessor
VRMs,
if
present.
CPU
X
Over
Temperature
1.
Check
all
fans
and
remove
any
obstacles
from
the
path
of
the
airflow.
2.
Make
sure
that
the
room
temperature
is
within
the
recommended
range.
3.
Make
sure
that
the
microprocessor
heat
sinks
are
correctly
seated.
Ethernet
Data
Rate
modified
from
<value1>
to
<value2>
by
user
<USERID>
Information
only
Ethernet
Duplex
setting
modified
from
<value1>
to
<value1>
by
user
<USERID>
Information
only
Ethernet
interface
<value>
by
user
<USERID>
Information
only
Ethernet
locally
administered
MAC
address
modified
from
x:x:x:x:x:x
Information
only
Ethernet
MTU
setting
modified
from
x
to
y
by
user
<USERID>
Information
only
Fan
X
Failure
(X
of
1-8)
1.
Make
sure
that
nothing
is
blocking
the
fan.
2.
Check
the
physical
connection
and
make
sure
that
the
fan
is
correctly
seated.
3.
Replace
fan
X.
Chapter
2.
Diagnostics
81