IBM HS40 Hardware Maintenance Manual - Page 103

self-tests

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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 The screen is wavy, unreadable, rolling, distorted, or has screen jitter. 1. If the monitor self-tests show the monitor is working properly, 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. (Moving a color monitor while it is turned on might cause screen discoloration.) Then move the device and the monitor at least 305 mm (12 in.) apart. Turn on the monitor. Notes: a. To prevent diskette drive read/write errors, be sure the distance between monitors and diskette drives is at least 76 mm (3 in.). b. Non-IBM monitor cables might cause unpredictable problems. c. An enhanced monitor cable with additional shielding is available for the 9521 and 9527 monitors. For information about the enhanced monitor cable, contact your IBM reseller or IBM marketing representative. 2. Monitor. 3. System board. Wrong characters appear on the screen. 1. If the wrong language is displayed, update the firmware or operating system with the correct language in the blade server that has ownership of the monitor. 2. Monitor. 3. System board. No video. 1. Make sure the correct machine is selected, if applicable. 2. Make sure all cables are locked down. Note: See Chapter 7, "Parts listing, Type 8839," on page 105 to determine which components should be replaced by a field service technician. Option problems Symptom FRU/action An IBM option that was just installed does not work. 1. Make sure that: v The option is designed for the server (see the ServerProven list on the World Wide Web at http://www.ibm.com/pc/us/compat/). v You followed the installation instructions that came with the option. v The option is installed correctly. v You have not loosened any other installed options or cables and that all option hardware and cable connections are secure. v If the failing option is a SCSI storage expansion unit: - The cables for the SCSI expansion unit are connected correctly. - If the SCSI storage expansion unit has been removed, verify that the socket is terminated correctly. - The external SCSI expansion unit is turned on. You must turn on the external SCSI expansion unit before turning on the server. v You updated the configuration information in the Configuration/Setup Utility program. Whenever memory or an option is changed, you must update the configuration. 2. If the option comes with its own test instructions, use those instructions to test the option. 3. Replace the option you just installed. Chapter 6. Symptom-to-FRU index 93

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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
The
screen
is
wavy,
unreadable,
rolling,
distorted,
or
has
screen
jitter.
1.
If
the
monitor
self-tests
show
the
monitor
is
working
properly,
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.
(Moving
a
color
monitor
while
it
is
turned
on
might
cause
screen
discoloration.)
Then
move
the
device
and
the
monitor
at
least
305
mm
(12
in.)
apart.
Turn
on
the
monitor.
Notes:
a.
To
prevent
diskette
drive
read/write
errors,
be
sure
the
distance
between
monitors
and
diskette
drives
is
at
least
76
mm
(3
in.).
b.
Non-IBM
monitor
cables
might
cause
unpredictable
problems.
c.
An
enhanced
monitor
cable
with
additional
shielding
is
available
for
the
9521
and
9527
monitors.
For
information
about
the
enhanced
monitor
cable,
contact
your
IBM
reseller
or
IBM
marketing
representative.
2.
Monitor.
3.
System
board.
Wrong
characters
appear
on
the
screen.
1.
If
the
wrong
language
is
displayed,
update
the
firmware
or
operating
system
with
the
correct
language
in
the
blade
server
that
has
ownership
of
the
monitor.
2.
Monitor.
3.
System
board.
No
video.
1.
Make
sure
the
correct
machine
is
selected,
if
applicable.
2.
Make
sure
all
cables
are
locked
down.
Note:
See
Chapter
7,
“Parts
listing,
Type
8839,”
on
page
105
to
determine
which
components
should
be
replaced
by
a
field
service
technician.
Option
problems
Symptom
FRU/action
An
IBM
option
that
was
just
installed
does
not
work.
1.
Make
sure
that:
v
The
option
is
designed
for
the
server
(see
the
ServerProven
list
on
the
World
Wide
Web
at
v
You
followed
the
installation
instructions
that
came
with
the
option.
v
The
option
is
installed
correctly.
v
You
have
not
loosened
any
other
installed
options
or
cables
and
that
all
option
hardware
and
cable
connections
are
secure.
v
If
the
failing
option
is
a
SCSI
storage
expansion
unit:
–
The
cables
for
the
SCSI
expansion
unit
are
connected
correctly.
–
If
the
SCSI
storage
expansion
unit
has
been
removed,
verify
that
the
socket
is
terminated
correctly.
–
The
external
SCSI
expansion
unit
is
turned
on.
You
must
turn
on
the
external
SCSI
expansion
unit
before
turning
on
the
server.
v
You
updated
the
configuration
information
in
the
Configuration/Setup
Utility
program.
Whenever
memory
or
an
option
is
changed,
you
must
update
the
configuration.
2.
If
the
option
comes
with
its
own
test
instructions,
use
those
instructions
to
test
the
option.
3.
Replace
the
option
you
just
installed.
Chapter
6.
Symptom-to-FRU
index
93