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
7979
and
1914
server,”
on
page
79
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
event/error
log
message
Action
+12v
critical
over
voltage
fault
1.
If
the
OVER
SPEC
LED
on
the
light
path
diagnostics
panel
is
lit,
or
any
of
the
four
power
channel
error
LEDs
(A,
B,
C,
or
D)
on
the
system
board
are
lit,
see
the
entries
about
power-channel
error
LEDs
in
“Power
problems”
on
page
45.
(See
“Internal
connectors,
LEDs,
and
jumpers”
on
page
8
for
the
location
of
the
power
channel
error
LEDs.)
2.
If
the
actions
in
“Power
problems”
on
page
45
do
not
identify
a
defective
component,
complete
the
following
steps:
a.
Remove
the
power
supplies.
Replace
the
power
supplies
one
at
a
time,
restarting
the
server
each
time,
to
isolate
a
failing
power
supply.
b.
If
the
server
fails
to
start,
replace
the
power
backplane.
Restart
the
server.
c.
If
the
server
fails
to
start,
(trained
service
technician
only)
replace
the
system
board.
+12v
critical
under
voltage
fault
1.
If
the
OVER
SPEC
LED
on
the
light
path
diagnostics
panel
is
lit,
or
any
of
the
four
power
channel
error
LEDs
(A,
B,
C,
or
D)
on
the
system
board
are
lit,
see
the
entries
about
power-channel
error
LEDs
in
“Power
problems”
on
page
45.
(See
“Internal
connectors,
LEDs,
and
jumpers”
on
page
8
for
the
location
of
the
power
channel
error
LEDs.)
2.
If
the
actions
in
“Power
problems”
on
page
45
do
not
identify
a
defective
component,
complete
the
following
steps:
a.
Remove
the
power
supplies.
Replace
the
power
supplies
one
at
a
time,
restarting
the
server
each
time,
to
isolate
a
failing
power
supply.
b.
If
the
server
fails
to
start,
replace
the
power
backplane.
Restart
the
server.
c.
If
the
server
fails
to
start,
(trained
service
technician
only)
replace
the
system
board.
12v
planar
fault
1.
If
the
OVER
SPEC
LED
on
the
light
path
diagnostics
panel
is
lit,
or
any
of
the
four
power
channel
error
LEDs
(A,
B,
C,
or
D)
on
the
system
board
are
lit,
see
the
entries
about
power-channel
error
LEDs
in
“Power
problems”
on
page
45.
(See
“Internal
connectors,
LEDs,
and
jumpers”
on
page
8
for
the
location
of
the
power
channel
error
LEDs.)
2.
If
the
actions
in
“Power
problems”
on
page
45
do
not
identify
a
defective
component,
complete
the
following
steps:
a.
Remove
the
power
supplies.
Replace
the
power
supplies
one
at
a
time,
restarting
the
server
each
time,
to
isolate
a
failing
power
supply.
b.
If
the
server
fails
to
start,
replace
the
power
backplane.
Restart
the
server.
c.
If
the
server
fails
to
start,
(trained
service
technician
only)
replace
the
system
board.
Chapter
2.
Diagnostics
69
Содержание System x3650 Type 7979
Страница 1: ...IBM System x3650 Type 7979 and 1914 Problem Determination and Service Guide...
Страница 2: ......
Страница 3: ...IBM System x3650 Type 7979 and 1914 Problem Determination and Service Guide...
Страница 8: ...vi IBM System x3650 Type 7979 and 1914 Problem Determination and Service Guide...
Страница 18: ...xvi IBM System x3650 Type 7979 and 1914 Problem Determination and Service Guide...
Страница 104: ...86 IBM System x3650 Type 7979 and 1914 Problem Determination and Service Guide...
Страница 180: ...162 IBM System x3650 Type 7979 and 1914 Problem Determination and Service Guide...
Страница 193: ......
Страница 194: ...Part Number 31R1705 Printed in USA 1P P N 31R1705...
