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
8878
and
8879,”
on
page
23
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
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.
Fan
X
not
detected
(X
of
1-8)
1.
Make
sure
that
nothing
is
blocking
the
fan
or
power
supply.
2.
Check
the
physical
connection
and
make
sure
that
the
fan
is
correctly
seated.
3.
Replace
fan
X.
Front
Panel
is
not
plugged
in
1.
Make
sure
that
the
operator
information
panel
cables
are
correctly
connected
(verify
LED
activity).
2.
Replace
the
operator
information
panel.
Hard
Drive
X
Fault
1.
Run
diagnostics.
2.
Reseat
the
following
components:
a.
Hard
disk
drive
b.
SAS
backplane
3.
Replace
the
components
listed
in
step
2
one
at
a
time,
in
the
order
shown,
restarting
the
server
each
time.
Hard
drive
X
removal
detected
Reseat
hard
disk
drive
X
and
restart
the
server.
Hostname
set
to
<value>
by
user
<USERID>
Information
only
Hot
plug
card
is
not
plugged
in
1.
Make
sure
that
the
PCI
or
PCI-X
cables
are
correctly
connected.
2.
Reseat
the
failing
hot-plug
cable
or
adapter.
3.
Replace
the
failing
hot-plug
cable
or
adapter.
136
IBM
System
x3950
Type
8878
and
System
x3950
E
Type
8879:
Problem
Determination
and
Service
Guide
Summary of Contents for System x3950 Type 8878
Page 2: ......
Page 185: ...Japanese Voluntary Control Council for Interference VCCI statement Appendix B Notices 169...
Page 191: ......
Page 192: ...Part Number 31R1891 Printed in USA 1P P N 31R1891...