b.
I/O
board
c.
Memory
card
d.
Microprocessor
tray
If
the
problem
is
solved
when
you
remove
an
adapter
from
the
server
but
the
problem
recurs
when
you
reinstall
the
same
adapter,
suspect
the
adapter;
if
the
problem
recurs
when
you
replace
the
adapter
with
a
different
one,
suspect
the
PCI-X
board.
If
you
suspect
a
networking
problem
and
the
server
passes
all
the
system
tests,
suspect
a
network
cabling
problem
that
is
external
to
the
server.
Calling
IBM
for
service
See
for
information
about
calling
IBM
for
service.
When
you
call
for
service,
have
as
much
of
the
following
information
available
as
possible:
v
Machine
type
and
model
v
Microprocessor
and
hard
disk
drive
upgrades
v
Failure
symptoms
–
Does
the
server
fail
the
diagnostic
programs?
If
so,
what
are
the
error
codes?
–
What
occurs?
When?
Where?
–
Is
the
failure
repeatable?
–
Has
the
current
server
configuration
ever
worked?
–
What
changes,
if
any,
were
made
before
it
failed?
–
Is
this
the
original
reported
failure,
or
has
this
failure
been
reported
before?
v
Diagnostic
program
type
and
version
level
v
Hardware
configuration
screen
of
the
system
summary)
v
BIOS
code
level
v
Operating-system
type
and
version
level
You
can
solve
some
problems
by
comparing
the
configuration
and
software
setups
between
working
and
nonworking
servers.
When
you
compare
servers
to
each
other
for
diagnostic
purposes,
consider
them
identical
only
if
all
the
following
factors
are
exactly
the
same
in
all
the
servers:
v
Machine
type
and
model
v
BIOS
level
v
Adapters
and
attachments,
in
the
same
locations
v
Address
jumpers,
terminators,
and
cabling
v
Software
versions
and
levels
v
Diagnostic
program
type
and
version
level
v
Configuration
option
settings
v
Operating-system
control-file
setup
Chapter
2.
Diagnostics
107
