3.
Record
the
bus
number
value,
BBBB,
of
the
IOP
or
IOA
Direct
Select
Address.
See
Search
for
the
bus
number
in
HSM
or
the
System
Configuration
Listing
to
determine
which
frame
or
I/O
tower
contains
the
failing
component.
Record
the
frame
or
tower
type.
4.
The
failing
component
is
the
FRU
containing
the
multi-adapter
bridge.
Identify
the
system
model,
tower,
expansion
unit,
or
machine
type
that
is
indicated
by
the
location
in
the
SAL,
or
by
using
the
bus
number,
BBBB.
Using
the
information
provided
in
the
table
below,
exchange
the
FRU
that
is
indicated.
Table
1.
FRU
containing
the
multi-adapter
bridge
System
model,
tower,
expansion
unit
or
machine
type
Name
of
FRU
to
exchange
FRU
position
Link
to
failing
component
service
information
(CCIN,
locations
diagram,
remove
and
replace
procedure).
Model
270
Record
the
processor
feature
code
(characters
5
through
8
of
function
20
on
the
control
panel)
System
unit
backplane
MB1
Use
the
and
follow
the
Locations
diagram
link
or
the
FRU
positions
and
failing
components
link
for
the
processor
feature
code.
Models
800
and
810
System
unit
backplane
MB1
See
Model
820
System
unit
backplane
MB1
See
Model
825
System
unit
backplane
CB1
See
Models
830
and
SB2
base
I/O
tower
(FC
9074)
Tower
card
CB1
See
Models
840
and
SB3
Base
I/O
Tower
(FC
9079)
Tower
card
CB1
See
Models
870
and
890
Tower
card
CB1
See
FC
5074
Expansion
I/O
Tower
Tower
card
CB1
See
FC
5075
Expansion
I/O
Tower
Tower
card
CB1
See
FC
5078,
0578
expansion
I/O
unit
Tower
card
CB1
See
FC
5079
(1.8m
expansion
tower)
Tower
card
CB1
See
FC
5088,
FC
0588
PCI
Expansion
Unit
Tower
card
CB1
See
FC
5095,
FC
0595
PCI
Expansion
Tower
Tower
card
CB1
See
External
xSeries
Server
Integrated
xSeries
Adapter
Card
Follow
the
HSL
cables.
See
This
ends
the
procedure.
MAPPWR
For
use
by
authorized
service
providers.
Use
this
procedure
to
help
locate
power
problems
in
the
processor
subsystem,
I/O
subsystems,
or
rack.
If
a
problem
is
detected,
this
procedure
helps
you
isolate
the
problem
to
a
failing
unit.
Observe
the
following
safety
notices
during
service
procedures.
DANGER
An
electrical
outlet
that
is
not
correctly
wired
could
place
hazardous
voltage
on
metal
parts
of
the
system
or
the
products
that
attach
to
the
system.
It
is
the
customer’s
responsibility
to
ensure
that
the
outlet
is
correctly
wired
and
grounded
to
prevent
an
electrical
shock.
(RSFTD201)
364
iSeries:
iSeries
Server
270,
800,
810,
820,
825,
830,
840,
870,
890,
SB2,
and
SB3
Hardware
Problem
Analysis
and
Isolation