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.
Symptom
Action
The
OVER
SPEC
LED
on
the
light
path
diagnostics
panel
is
lit,
and
the
power
channel
B
LED
on
the
system
board
is
lit.
1.
Remove
the
following
components:
v
IDE
CD/DVD
cable
v
Fans
1,
2,
3
and
5
v
(Trained
service
technician
only)
Microprocessor
2
and
the
VRM,
together
2.
Restart
the
server.
If
the
OVER
SPEC
and
power
channel
LEDs
are
still
lit,
see
the
actions
for
+12
v
critical
overvoltage
fault
in
“System
event/error
log
messages”
on
page
68.
3.
Test
the
IDE
CD/DVD
cable
and
drive:
a.
Reinstall
the
IDE
CD/DVD
cable;
then,
restart
the
server.
b.
If
the
OVER
SPEC
and
power
channel
LEDs
are
still
off,
replace
the
CD-RW/DVD
drive.
4.
Reinstall
the
remaining
components
listed
in
step
1,
one
at
a
time,
in
the
order
shown,
restarting
the
server
each
time.
If
the
power
channel
B
LED
is
lit,
the
component
that
you
just
reinstalled
is
defective.
Replace
the
defective
component.
The
OVER
SPEC
LED
on
the
light
path
diagnostics
panel
is
lit,
and
the
power
channel
C
LED
on
the
system
board
is
lit.
1.
Remove
the
following
components:
v
Tape
drive
power
cable
v
DIMMs
v
ServeRAID
SAS
controller
2.
Restart
the
server.
If
the
OVER
SPEC
and
power
channel
LEDs
are
still
lit,
see
the
actions
for
+12
v
critical
overvoltage
fault
in
“System
event/error
log
messages”
on
page
68.
3.
Test
the
tape
drive
and
cable:
a.
Reinstall
the
tape
drive
power
cable;
then,
restart
the
server.
b.
If
the
OVER
SPEC
and
power
channel
LEDs
are
still
off,
replace
the
tape
drive.
4.
Restart
the
server.
If
the
OVER
SPEC
and
power
channel
LEDs
are
off,
reinstall
the
DIMMs,
one
pair
at
a
time,
restarting
the
server
each
time.
If
the
power
channel
C
LED
is
lit,
the
pair
of
DIMMs
that
you
just
reinstalled
is
defective.
Replace
the
defective
DIMMs.
5.
Reinstall
the
ServeRAID
SAS
controller
and
restart
the
server.
If
the
OVER
SPEC
and
power
channel
LEDs
are
off,
replace
the
ServeRAID
SAS
controller.
The
OVER
SPEC
LED
on
the
light
path
diagnostics
panel
is
lit,
and
the
power
channel
D
LED
on
the
system
board
is
lit.
1.
Remove
all
PCI
adapters
(the
low-profile
PCI
Express
adapters
in
PCI
slots
3
and
4,
and
the
adapters
on
the
PCI
riser
card
in
PCI
slots
1
and
2).
2.
Restart
the
server.
If
the
OVER
SPEC
and
power
channel
LEDs
are
still
lit,
see
the
actions
for
+12
v
critical
overvoltage
fault
in
“System
event/error
log
messages”
on
page
68.
3.
Reinstall
the
adapters,
one
at
a
time,
restarting
the
server
each
time.
If
the
power
channel
D
LED
is
lit,
the
adapter
that
you
just
reinstalled
is
defective.
Replace
the
defective
adapter.
46
IBM
System
x3650
Type
7979
and
1914:
Problem
Determination
and
Service
Guide
Summary of Contents for System x3650 Type 7979
Page 1: ...IBM System x3650 Type 7979 and 1914 Problem Determination and Service Guide...
Page 2: ......
Page 3: ...IBM System x3650 Type 7979 and 1914 Problem Determination and Service Guide...
Page 8: ...vi IBM System x3650 Type 7979 and 1914 Problem Determination and Service Guide...
Page 18: ...xvi IBM System x3650 Type 7979 and 1914 Problem Determination and Service Guide...
Page 104: ...86 IBM System x3650 Type 7979 and 1914 Problem Determination and Service Guide...
Page 180: ...162 IBM System x3650 Type 7979 and 1914 Problem Determination and Service Guide...
Page 193: ......
Page 194: ...Part Number 31R1705 Printed in USA 1P P N 31R1705...
