v
Follow
the
suggested
actions
in
the
order
in
which
they
are
listed
in
the
Action
column
until
the
problem
is
solved.
v
See
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.
Error
code
Description
Action
166-412-001
System
Management:
Failed
I
2
C
bus
failure.
1.
Disconnect
all
power
cords
and
external
cables
from
the
server,
wait
30
seconds,
reconnect
the
power
cords
and
cables,
and
retry
the
test.
2.
Update
the
BMC
firmware
to
the
latest
level.
3.
Reseat
the
power
backplane.
4.
Replace
the
following
components
one
at
a
time,
in
the
order
shown,
restarting
the
server
each
time:
a.
(Trained
service
technician
only)
Power
backplane
b.
(Trained
service
technician
only)
System
board
166-414-001
System
Management:
Failed
I
2
C
bus
failure.
1.
Disconnect
all
power
cords
and
external
cables
from
the
server,
wait
30
seconds,
reconnect
the
power
cords
and
cables,
and
retry
the
test.
2.
Update
the
BMC
firmware
to
the
latest
level.
3.
Reseat
the
hard
disk
drive
cable.
4.
Replace
the
following
components
one
at
a
time,
in
the
order
shown,
restarting
the
server
each
time:
a.
(Trained
service
technician
only)
Hard
disk
drive
backplane
b.
(Trained
service
technician
only)
System
board
166-415-001
System
Management:
Failed
I
2
C
bus
failure.
1.
Disconnect
all
power
cords
and
external
cables
from
the
server,
wait
30
seconds,
reconnect
the
power
cords
and
cables,
and
retry
the
test.
2.
Update
the
BMC
firmware
to
the
latest
level.
3.
Reseat
the
operator
information
panel
cable.
4.
Replace
the
following
components
one
at
a
time,
in
the
order
shown,
restarting
the
server
each
time:
a.
Operator
information
panel
assembly
b.
(Trained
service
technician
only)
System
board
180-xxx-000
Diagnostics
LED
failure.
Run
the
diagnostics
panel
LED
test
for
the
failing
LED.
64
IBM
System
x3655
Type
7985
and
7943:
Problem
Determination
and
Service
Guide
Summary of Contents for 7985
Page 1: ...IBM System x3655 Type 7985 and 7943 Problem Determination and Service Guide...
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Page 3: ...IBM System x3655 Type 7985 and 7943 Problem Determination and Service Guide...
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Page 112: ...View 1...
Page 159: ...Battery Chapter 5 Removing and replacing server components 141...
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Page 218: ...Part Number 42D2167 Printed in USA 1P P N 42D2167...