Monitor
or
video
problems
Some
IBM
monitors
have
their
own
self-tests.
If
you
suspect
a
problem
with
your
monitor,
see
the
documentation
that
comes
with
the
monitor
for
instructions
for
testing
and
adjusting
the
monitor.
If
you
cannot
diagnose
the
problem,
call
for
service.
v
Follow
the
suggested
actions
in
the
order
in
which
they
are
listed
in
the
Action
column
until
the
problem
is
solved.
v
See
Chapter
3,
“Parts
listing,
Type
7981
and
1884,”
on
page
53
to
determine
which
components
are
customer
replaceable
units
(CRU)
and
which
components
are
field
replaceable
units
(FRU).
v
If
an
action
step
is
preceded
by
“(Trained
service
technician
only),”
that
step
must
be
performed
only
by
a
trained
service
technician.
Symptom
Action
The
screen
is
blank.
1.
Make
sure
that:
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.
Note:
You
can
test
the
monitor
functionality
by
enabling
the
keyboard/video/mouse
select
button
on
another
blade
server.
v
The
system
power
cord
is
connected
to
the
BladeCenter
power
module
and
a
working
electrical
outlet.
v
The
monitor
cables
are
connected
correctly.
v
The
monitor
is
turned
on
and
the
brightness
and
contrast
controls
are
adjusted
correctly.
v
Damaged
BIOS
code
is
not
affecting
the
video;
see
“Recovering
from
a
BIOS
update
failure”
on
page
48.
Important:
In
some
memory
configurations,
the
3-3-3
beep
code
might
sound
during
POST
followed
by
a
blank
monitor
screen.
If
this
occurs
and
the
Boot
Fail
Count
option
in
the
Start
Options
of
the
Configuration/Setup
Utility
program
is
enabled,
you
must
restart
the
blade
server
three
times
to
reset
the
configuration
settings
to
the
default
configuration
(the
memory
connector
or
bank
of
connectors
enabled).
2.
Replace
the
following
components:
a.
Monitor
b.
Management-module
in
the
BladeCenter
(see
the
Hardware
Maintenance
Manual
and
Troubleshooting
Guide
or
Problem
Determination
and
Service
Guide
for
your
BladeCenter
unit).
c.
(Trained
service
technician
only)
System
board
assembly
Only
the
cursor
appears.
Make
sure
that
the
keyboard,
video,
and
mouse
have
not
been
switched
to
another
blade
server.
If
the
problem
remains,
see
“Solving
undetermined
problems”
on
page
49.
The
monitor
goes
blank
when
you
direct
it
to
a
working
blade
server,
or
it
goes
blank
when
you
start
some
application
programs
in
the
blade
servers.
Make
sure
that
the
monitor
cable
is
connected
to
the
video
connector
on
the
BladeCenter
management-module.
Some
IBM
monitors
have
their
own
self-tests.
If
you
suspect
a
problem
with
the
monitor,
see
the
information
that
comes
with
the
monitor
instructions
for
adjusting
and
testing
the
monitor.
If
you
still
cannot
find
the
problem,
try
using
the
monitor
with
another
blade
server.
If
the
problem
remains,
see
the
Hardware
Maintenance
Manual
and
Troubleshooting
Guide
or
Problem
Determination
and
Service
Guide
for
your
BladeCenter
unit.
Chapter
2.
Diagnostics
31
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