DISKTRY
For
use
by
authorized
service
providers.
The
disk
unit
tray
or
disk
unit
holder
is
only
a
separate
failing
item
on
migrated
towers.
If
the
disk
unit
tray
or
holder
is
located
in
a
migration
tower,
see
the
DISKTRY
symbolic
FRU
in
manual
on
the
V5R1
Supplemental
Manuals
web
site
for
FRU
isolation
instructions.
DMREG
For
use
by
authorized
service
providers.
A
power
regulator
card
is
failing.
1.
Is
the
SRC
1xxx
1201
or
1401?
v
Yes
:
Continue
with
the
next
step.
v
No
:
Go
to
step
5
(See
page
.
2.
Perform
the
following:
a.
Remove
load
cards
Mxx
in
table
below
for
application.
The
possible
failing
loads
are:
Model
Load
position
840/SB3
M01,
M02,
M03
-
memory
b.
Power
on
the
system.
Does
the
system
power
on?
v
Yes
:
Continue
with
the
next
step.
v
No
:
Go
to
step
23
(See
page
.
3.
Perform
the
following:
a.
Power
off
the
system.
b.
Reinstall
one
of
the
Mxx
load
cards
that
was
removed
in
step
2
(See
page
.
c.
Power
on
the
system.
Does
the
system
power
on?
v
Yes
:
Continue
with
the
next
step.
v
No
:
The
last
card
that
was
reinstalled
in
this
step
is
the
failing
item.
This
ends
the
procedure.
4.
Have
all
the
Mxx
load
cards
been
reinstalled?
v
Yes
:
This
ends
the
procedure.
v
No
:
Repeat
step
3
(See
page
.
5.
Is
the
SRC
1xxx
1202
or
1402?
v
Yes
:
Continue
with
the
next
step.
v
No
:
Go
to
step
7
(See
page
.
6.
Perform
steps
23
(See
page
to
24
(See
page
and
return
here
after
completion.
Did
the
completion
of
these
steps
resolve
SRC
1xxx
1202
or
1402?
v
No
:
Replace
the
This
ends
the
procedure.
v
Yes
:
This
ends
the
procedure.
7.
Is
the
SRC
1xxx
1203
or
1403?
v
Yes
:
Continue
with
the
next
step.
v
No
:
Go
to
step
9
(See
page
.
332
iSeries:
iSeries
Server
270,
800,
810,
820,
825,
830,
840,
870,
890,
SB2,
and
SB3
Hardware
Problem
Analysis
and
Isolation
