Note:
See
Chapter
7,
“Parts
listing,
Type
8839,”
on
page
105
to
determine
which
components
should
be
replaced
by
a
field
service
technician.
Monitor
problems
Symptom
FRU/action
Testing
the
monitor.
See
the
information
that
comes
with
the
monitor
for
adjusting
and
testing
instructions.
(Some
IBM
monitors
have
their
own
self-tests.)
The
screen
is
blank.
1.
Make
sure
that:
v
The
keyboard/mouse/video
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
system
power
cord
is
plugged
into
the
BladeCenter
power
module
and
a
working
electrical
outlet.
v
The
monitor
cables
are
connected
properly.
v
The
monitor
is
turned
on
and
the
Brightness
and
Contrast
controls
are
adjusted
correctly.
v
If
the
computers
are
C2T
chained
together,
verify
that:
–
The
C2T
chain
cables
are
securely
connected
to
the
computers.
–
The
C2T
breakout
cable
is
connected
properly.
–
A
computer
that
is
turned
on
is
selected.
Important:
In
some
memory
configurations,
the
3-3-3
beep
code
might
sound
during
POST
followed
by
a
blank
display
screen.
If
this
occurs
and
the
Boot
Fail
Count
feature
in
the
Start
Options
of
the
Configuration/Setup
Utility
program
is
set
to
Enabled
(its
default
setting),
you
must
restart
the
computer
three
times
to
force
the
system
BIOS
to
reset
the
CMOS
values
to
the
default
configuration
(memory
connector
or
bank
of
connectors
enabled).
2.
If
you
have
verified
these
items
and
the
screen
remains
blank,
replace:
a.
Monitor
b.
Management
module
on
the
BladeCenter
(see
the
IBM
BladeCenter
Type
8677
Hardware
Maintenance
Manual
and
Troubleshooting
Guide
).
Only
the
cursor
appears.
Make
sure
that
the
keyboard,
video
and
mouse
on
the
BladeCenter
have
not
been
switched
to
another
blade
server.
If
the
problem
remains,
see“Undetermined
problems”
on
page
101.
The
monitor
goes
blank
when
you
direct
it
to
a
working
blade
server,
or
goes
blank
when
you
start
some
application
programs
in
the
blade
servers.
Make
sure
that
the
monitor
cable
is
connected
to
the
video
port
on
the
BladeCenter
management
module.
Some
IBM
monitors
have
their
own
self-tests.
If
you
suspect
a
problem
with
your
monitor,
see
the
information
that
comes
with
the
monitor
for
adjusting
and
testing
instructions.
If
you
still
cannot
find
the
problem,
try
using
the
monitor
with
another
blade
server.
If
the
problem
persists,
see
the
IBM
BladeCenter
Type
8677
Hardware
Maintenance
Manual
and
Troubleshooting
Guide
on
the
IBM
BladeCenter
Documentation
CD.
92
BladeCenter
HS40
Type
8839:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide
Summary of Contents for HS40 - BladeCenter - 8839
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