IBM HS40 User Guide - Page 83

Monitor, problems

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Monitor problems Note: The monitor remains blank until it is directed to a blade server that is turned on; this is normal behavior. Symptom Suggested action 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 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 remains, see the IBM BladeCenter Type 8677 Hardware Maintenance Manual and Troubleshooting Guide on the IBM BladeCenter Documentation CD or the IBM BladeCenter T Types 8720 and 8730 Hardware Maintenance Manual and Troubleshooting Guide on the IBM BladeCenter T Documentation CD. The screen is blank. 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 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. 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 feature in the Start Options of the Configuration/Setup Utility program is enabled (its default setting), you must restart the server three times to force the BIOS to reset the configuration settings to the default configuration (the memory connector or bank of connectors enabled). Only the cursor appears. If the problem remains, call for service. Make sure that the keyboard, video, and mouse on the BladeCenter unit have not been switched to another blade server. If the problem remains, call for service. The monitor has screen jitter, or the screen image is wavy, unreadable, rolling, or distorted. If the monitor self-tests show 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. Move the device and the monitor at least 300 mm (12 in.) apart and turn on the monitor. Attention: Moving a color monitor while it is turned on might cause screen discoloration. Notes: 1. To prevent diskette drive read/write errors, make sure that the distance between the monitor and diskette drives is at least 75 mm (3 in.). 2. Non-IBM monitor cables might cause unpredictable problems. 3. An enhanced monitor cable with additional shielding is available for the 9521 and 9527 monitors. For information about the enhanced monitor cable, see your IBM marketing representative or authorized reseller. If the problem remains, call for service. Chapter 6. Solving problems 69

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Monitor
problems
Note:
The
monitor
remains
blank
until
it
is
directed
to
a
blade
server
that
is
turned
on;
this
is
normal
behavior.
Symptom
Suggested
action
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
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
remains,
see
the
IBM
BladeCenter
Type
8677
Hardware
Maintenance
Manual
and
Troubleshooting
Guide
on
the
IBM
BladeCenter
Documentation
CD
or
the
IBM
BladeCenter
T
Types
8720
and
8730
Hardware
Maintenance
Manual
and
Troubleshooting
Guide
on
the
IBM
BladeCenter
T
Documentation
CD.
The
screen
is
blank.
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
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.
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
feature
in
the
Start
Options
of
the
Configuration/Setup
Utility
program
is
enabled
(its
default
setting),
you
must
restart
the
server
three
times
to
force
the
BIOS
to
reset
the
configuration
settings
to
the
default
configuration
(the
memory
connector
or
bank
of
connectors
enabled).
If
the
problem
remains,
call
for
service.
Only
the
cursor
appears.
Make
sure
that
the
keyboard,
video,
and
mouse
on
the
BladeCenter
unit
have
not
been
switched
to
another
blade
server.
If
the
problem
remains,
call
for
service.
The
monitor
has
screen
jitter,
or
the
screen
image
is
wavy,
unreadable,
rolling,
or
distorted.
If
the
monitor
self-tests
show
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.
Move
the
device
and
the
monitor
at
least
300
mm
(12
in.)
apart
and
turn
on
the
monitor.
Attention:
Moving
a
color
monitor
while
it
is
turned
on
might
cause
screen
discoloration.
Notes:
1.
To
prevent
diskette
drive
read/write
errors,
make
sure
that
the
distance
between
the
monitor
and
diskette
drives
is
at
least
75
mm
(3
in.).
2.
Non-IBM
monitor
cables
might
cause
unpredictable
problems.
3.
An
enhanced
monitor
cable
with
additional
shielding
is
available
for
the
9521
and
9527
monitors.
For
information
about
the
enhanced
monitor
cable,
see
your
IBM
marketing
representative
or
authorized
reseller.
If
the
problem
remains,
call
for
service.
Chapter
6.
Solving
problems
69