Video
problems
To
check
for
video
problems,
complete
the
following
steps
until
the
problem
is
solved:
1.
Make
sure
that:
v
Both
the
blade
server
and
the
monitor
are
turned
on,
and
that
the
monitor
brightness
and
contrast
controls
are
correctly
adjusted.
v
The
keyboard/video/mouse
select
button
LED
on
the
front
of
the
blade
server
is
lit,
indicating
that
the
blade
server
is
connected
to
the
shared
BladeCenter
monitor.
v
The
video
cable
is
securely
connected
to
the
BladeCenter
management-module.
Non-IBM
monitor
cables
might
cause
unpredictable
problems.
v
The
monitor
works
with
another
blade
server.
v
Some
IBM
monitors
have
their
own
self-tests.
If
you
suspect
a
problem
with
the
monitor,
see
the
information
that
comes
with
the
monitor
for
instructions
for
adjusting
and
testing
the
monitor.
If
the
monitor
self-tests
show
that
the
monitor
is
working
correctly,
consider
the
location
of
the
monitor.
Magnetic
fields
around
other
devices
(such
as
transformers,
appliances,
fluorescent
lights,
and
other
monitors)
can
cause
screen
jitter
or
wavy,
unreadable,
rolling,
or
distorted
screen
images.
If
this
happens,
turn
off
the
monitor.
Attention:
Moving
a
color
monitor
while
it
is
turned
on
might
cause
screen
discoloration.
Move
the
device
and
the
monitor
at
least
305
mm
(12
in.)
apart.
Turn
on
the
monitor.
To
prevent
diskette
drive
read/write
errors,
make
sure
that
the
distance
between
the
monitor
and
any
diskette
drive
is
at
least
76
mm
(3
in.).
2.
Check
for
correct
management-module
operation
(see
the
documentation
for
your
BladeCenter
unit).
Note:
Some
BladeCenter
unit
types
have
several
management-module
components
that
might
need
to
be
tested
or
replaced
(see
the
Installation
Guide
for
your
management
module
for
more
information).
3.
Replace
the
monitor
cable,
if
applicable.
4.
Replace
the
monitor.
5.
Replace
the
management
module
(see
the
documentation
for
your
BladeCenter
unit).
If
these
steps
do
not
resolve
the
problem,
it
is
likely
a
problem
with
the
blade
server.
See
Solving
undetermined
problems
Note:
When
you
are
diagnosing
a
problem
in
the
blade
server,
you
must
determine
whether
the
problem
is
in
the
blade
server
or
in
the
BladeCenter
unit.
v
If
all
of
the
blade
servers
have
the
same
symptom,
the
problem
is
probably
in
the
BladeCenter
unit.
For
more
information,
see
the
Hardware
Maintenance
Manual
and
Troubleshooting
Guide
or
Problem
Determination
and
Service
Guide
for
your
BladeCenter
unit.
v
If
the
BladeCenter
unit
contains
more
than
one
blade
server
and
only
one
of
the
blade
servers
has
the
problem,
troubleshoot
the
blade
server
that
has
the
problem.
If
the
diagnostic
tests
did
not
diagnose
the
failure
or
if
the
blade
server
is
inoperative,
use
the
information
in
this
section.
70
BladeCenter
HS21
Types
1885
and
8853:
Problem
Determination
and
Service
Guide
Содержание HS21 - BladeCenter - 8853
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