
Solving
undetermined
problems
If
the
diagnostic
tests
did
not
diagnose
the
failure
or
if
the
server
is
inoperative,
use
the
information
in
this
section.
If
you
suspect
that
a
software
problem
is
causing
failures
(continuous
or
intermittent),
see
“Software
problems”
on
page
48.
Damaged
data
in
CMOS
memory
or
damaged
BIOS
code
can
cause
undetermined
problems.
To
reset
the
CMOS
data,
use
the
password
override
jumper
to
override
the
power-on
password
and
clear
the
CMOS
memory;
see
“I/O
board
internal
connectors
and
jumpers”
on
page
8.
If
you
suspect
that
the
BIOS
code
is
damaged,
see
“Recovering
from
a
BIOS
update
failure”
on
page
77.
Check
the
LEDs
on
all
the
power
supplies
(see
“Power-supply
LEDs”
on
page
57).
If
the
LEDs
indicate
that
the
power
supplies
are
working
correctly,
complete
the
following
steps:
1.
Turn
off
the
server.
2.
Make
sure
that
the
server
is
cabled
correctly.
3.
Remove
or
disconnect
the
following
devices,
one
at
a
time,
until
you
find
the
failure.
Turn
on
the
server
and
reconfigure
it
each
time.
v
Any
external
devices.
v
Surge-suppressor
device
(on
the
server).
v
Modem,
printer,
mouse,
and
non-IBM
devices.
v
Each
adapter.
v
Hard
disk
drives.
v
Memory
modules.
The
minimum
configuration
requirement
is
2
GB
(two
1
GB
DIMMs).
v
Service
processor.
The
following
minimum
configuration
is
required
for
the
server
to
turn
on:
v
One
microprocessor
v
Two
1
GB
DIMMs
on
the
memory
card
v
One
power
supply
v
Power
backplane
v
Power
cord
v
I/O
board
v
PCI-X
board
4.
Turn
on
the
server.
If
the
problem
remains,
suspect
the
following
components
in
the
following
order:
a.
Power
backplane
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.
90
IBM
xSeries
460
Type
8872
and
xSeries
MXE
460
Type
8874:
Problem
Determination
and
Service
Guide
Содержание 8872 - eServer xSeries 460
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