v
MCM
module
3
at
location
M14
v
MCM
module
1
at
location
M16
v
MCM
module
2
at
location
M11
23.
Power
on
the
system.
See
24.
Did
the
system
stop
with
the
same
error
code
as
recorded
in
step
1
(See
page
?
v
Yes:
Go
to
step
30
(See
page
.
v
No:
Continue
with
the
next
step.
25.
One
of
the
modules
just
removed
is
defective.
a.
Power
off
the
system.
See
b.
Make
sure
all
amber
logic-power
LEDs
of
all
installed
processor
subsystem
DCAs
are
off.
26.
Attention:
Before
you
remove
or
replace
an
MCM
module,
stop,
read,
and
understand
the
procedure.
Attention:
MCM
modules
have
a
limit
of
three
plug
cycles.
Before
replacing
any
of
the
MCMs
in
the
following
list,
call
your
next
level
of
support.
Reinstall
one
of
the
MCM
modules
that
is
removed
and
listed
in
step
22
(See
page
.
27.
Power
on
the
system.
See
28.
Did
the
system
stop
with
the
same
error
code
as
recorded
in
step
1
(See
page
?
v
Yes:
The
module
just
reinserted
is
defective.
Replace
it.
Return
the
system
to
its
original
configuration.
See
This
ends
the
procedure.
v
No:
Continue
with
the
next
step.
29.
Have
all
the
modules
listed
in
step
22
(See
page
been
reinstalled?
v
Yes:
The
symptom
has
changed.
Return
the
system
to
its
original
configuration.
See
This
ends
the
procedure.
v
No:
Go
to
step
25
(See
page
.
30.
Examine
the
amber
logic-power
LEDs
of
all
installed
processor
subsystem
DCAs.
31.
Are
all
amber
logic-power
LEDs
of
all
installed
processor
subsystem
DCAs
off?
v
Yes:
Continue
with
the
next
step.
v
No:
Replace
the
DCA
that
has
the
amber
logic
power
LED
that
did
not
turn
off.
See
symbolic
FRU
32.
Attention:
Before
replacing
the
system
backplane,
call
your
next
level
of
support.
Replace
the
system
backplane
at
location
M1.
33.
Power
on
the
system.
See
34.
Did
the
system
stop
with
the
same
error
code
as
recorded
in
step
1
(See
page
?
v
Yes:
Continue
with
the
next
step.
v
No:
The
system
backplane
was
defective.
Return
the
system
to
its
original
configuration.
See
This
ends
the
procedure.
35.
Power
off
the
system.
See
Then,
make
sure
all
amber
logic-power
LEDs
of
all
installed
processor
subsystem
DCAs
are
off.
36.
Has
the
system
backplane
been
replaced?
v
Yes:
Call
your
next
level
of
support.
v
No:
Go
to
step
32
(See
page
.
MAPPWR-D:
3.3
V
current/voltage
problem
in
processor
subsystem
For
use
by
authorized
service
providers.
388
iSeries:
iSeries
Server
270,
800,
810,
820,
825,
830,
840,
870,
890,
SB2,
and
SB3
Hardware
Problem
Analysis
and
Isolation
Содержание iSeries Series
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Страница 504: ...492 iSeries iSeries Server 270 800 810 820 825 830 840 870 890 SB2 and SB3 Hardware Problem Analysis and Isolation...
Страница 508: ...496 iSeries iSeries Server 270 800 810 820 825 830 840 870 890 SB2 and SB3 Hardware Problem Analysis and Isolation...
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