v
No
:
Exchange
the
first
power
supply
in
order
left
installed
in
step
3b
(See
page
This
ends
the
procedure.
6.
Perform
the
following:
a.
Power
off
the
frame
or
system
that
you
are
working
on.
Frames
with
an
FC
5078
or
FC
0578
attached
-
trace
and
remove
the
lower
frame
power
supply
ac
jumper
cables
at
the
AC
input/battery
charger,
or
at
the
AC
modules.
b.
Remove
one
of
the
air
moving
devices
(AMDs)
from
the
system
that
was
not
previously
removed
during
this
procedure.
Disregard
an
AMD
SRC
if
it
occurs
during
this
step.
c.
Power
on
the
frame
or
system
that
you
are
working
on.
Frames
with
an
FC
5078
or
FC
0578
attached-
reconnect
the
lower
frame
power
supply
ac
jumper
cables
at
the
AC
input/battery
charger,
or
at
the
AC
modules.
Does
a
power
reference
code
occur?
v
Yes
:
Continue
with
the
next
step.
v
No
:
The
AMD
that
you
removed
in
this
step
is
the
failing
item.
This
ends
the
procedure.
7.
Have
you
removed
all
of
the
AMDs
one
at
a
time?
v
Yes
:
Install
all
of
the
AMDs
and
continue
with
the
next
step.
v
No
:
Perform
the
following:
a.
Power
off
the
frame
or
system
that
you
are
working
on.
(Frames
with
an
FC
5078
or
FC
0578
attached
-
trace
and
remove
the
lower
frame
power
supply
ac
jumper
cables
at
the
AC
input/battery
charger,
or
at
the
AC
modules.
b.
Install
the
AMD
that
was
removed
in
step
6
(See
page
in
the
original
location.
c.
Repeat
step
6
(See
page
8.
Perform
the
following:
a.
Remove
the
power
cable
from
one
of
the
lower
DASD
backplanes
that
was
not
previously
removed.
b.
Power
on
the
frame
or
system
that
you
are
working
on.
Frames
with
an
FC
5078
or
FC
0578
attached
-
reconnect
the
lower
frame
power
supply
ac
jumper
cables
at
the
AC
input/battery
charger,
or
at
the
AC
modules.
Does
a
power
reference
code
occur?
v
Yes
:
Continue
with
the
next
step.
v
No
:
Replace
the
DASD
backplane
that
the
power
cable
was
removed
from
in
this
step.
See
symbolic
FRU
This
ends
the
procedure.
9.
Is
a
second
lower
DASD
backplane
installed?
v
Yes
:
Repeat
step
8
(See
page
v
No
:
Replace
the
following
one
at
a
time:
a.
DASD
backplane
upper
(CCIN
283C
or
28CB),
see
symbolic
FRU
b.
System
unit
backplane,
see
symbolic
FRU
c.
I/O
tower,
see
symbolic
FRU
This
ends
the
procedure.
10.
Perform
the
following:
a.
Power
off
the
frame
or
system
that
you
are
working
on.
Frames
with
an
FC
5078
or
FC
0578
attached
-
trace
and
remove
the
lower
frame
power
supply
ac
jumper
cables
at
the
AC
input/battery
charger,
or
at
the
ac
modules.
b.
Reinstall
all
of
the
cards
that
you
removed
in
step
2
(See
page
c.
Reconnect
the
ac
power
cable
to
the
unit
that
you
are
working
on.
162
iSeries:
iSeries
Server
270,
800,
810,
820,
825,
830,
840,
870,
890,
SB2,
and
SB3
Hardware
Problem
Analysis
and
Isolation