11.
Perform
the
following
to
bypass
the
uninterruptible
power
supply
unit:
a.
Power
down
your
system
and
the
uninterruptible
power
supply
unit.
b.
Remove
the
9-pin
D-shell
signal
cable
(p/n
17G1768)
used
between
the
uninterruptible
power
supply
and
the
system.
c.
Remove
the
power
jumper
cords
used
between
the
uninterruptible
power
supply
and
the
attached
devices.
d.
Remove
the
country
or
region
specific
power
cord
used
from
the
uninterruptible
power
supply
to
the
wall
outlet.
e.
Use
the
correct
power
cord
(that
is,
use
the
original
country
or
region
specific
power
cord
shipped
with
your
system
and
connect
it
to
the
power
inlet
on
the
system).
Note:
Plug
the
other
end
of
this
cord
into
a
compatible
wall
outlet.
f.
Attempt
to
power
on
the
system.
Does
the
system
power
on?
v
Yes
:
Continue
with
the
next
step.
v
No
:
Go
to
step
4
(See
page
.
12.
Display
the
selected
IPL
mode
on
the
system
unit
control
panel
(see
).
Is
the
selected
mode
the
same
mode
the
customer
was
using
when
the
power-on
failure
occurred?
v
No
:
Go
to
step
14
(See
page
.
v
Yes
:
Continue
with
the
next
step.
13.
Is
a
function
11
SRC
displayed
on
the
system
unit
control
panel?
v
No
:
Go
to
step
15
(See
page
.
v
Yes
:
Go
to
This
ends
the
procedure.
14.
Perform
the
following:
a.
Power
off
the
system.
b.
Select
the
mode
on
the
system
unit
control
panel
the
customer
was
using
when
the
power-on
failure
occurred.
c.
Attempt
to
power
on
the
system.
Does
the
system
power
on?
v
Yes
:
Continue
with
the
next
step.
v
No
:
Exchange
the
system
unit
control
panel
card.
See
This
ends
the
procedure.
15.
Continue
the
IPL.
Does
the
IPL
complete
successfully?
v
Yes
:
This
ends
the
procedure.
v
No
:
Go
to
This
ends
the
procedure.
Instructions
for
Models
830,
840,
SB2,
and
SB3
1.
Attempt
to
power
on
the
system.
See
Does
the
system
power
on?
v
No
:
Continue
with
the
next
step.
v
Yes
:
Go
to
step
11
(See
page
.
2.
Are
there
any
characters
displayed
on
the
control
panel?
(A
scrolling
dot
may
be
visible
as
a
character.)
v
No
:
Continue
with
the
next
step.
v
Yes
:
Go
to
step
10
(See
page
.
34
iSeries:
iSeries
Server
270,
800,
810,
820,
825,
830,
840,
870,
890,
SB2,
and
SB3
Hardware
Problem
Analysis
and
Isolation