Memory
problems
Symptom
FRU/action
The
amount
of
system
memory
displayed
is
less
than
the
amount
of
physical
memory
installed.
1.
Make
sure
that:
v
The
memory
modules
are
seated
correctly.
v
You
have
installed
the
correct
type
of
memory.
v
If
you
changed
the
memory,
you
updated
the
memory
configuration
in
the
Configuration/Setup
Utility
program.
v
All
banks
of
memory
are
enabled.
The
computer
might
have
automatically
disabled
a
memory
bank
when
it
detected
a
problem,
or
a
memory
bank
might
have
been
manually
disabled.
2.
Check
POST
error
log
for
error
message
289:
v
If
the
DIMM
was
disabled
by
a
system-management
interrupt
(SMI),
replace
the
DIMM.
v
If
the
DIMM
was
disabled
by
the
user
or
by
POST,
run
the
Configuration/Setup
Utility
program
and
enable
the
DIMM.
3.
DIMM.
4.
System
board.
Microprocessor
problems
Symptom
FRU/action
The
computer
emits
a
continuous
tone
during
POST.
(The
startup
(boot)
microprocessor
is
not
working
correctly.)
1.
Verify
that
the
microprocessor
is
seated
properly.
2.
Microprocessor.
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
computer
power
cord
is
connected
to
the
computer
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
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
correctly.
–
The
selected
computer
is
turned
on.
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
computer
three
times
to
force
the
BIOS
to
reset
the
configuration
settings
to
the
default
configuration
(memory
connector
or
bank
of
connectors
enabled).
2.
If
the
problem
remains,
replace:
a.
Monitor
b.
Video
adapter,
if
installed
c.
System
board
Only
the
cursor
appears.
See
106
IBM
IntelliStation
M
Pro
Types
6220
and
6230:
Hardware
Maintenance
Manual
Содержание IntelliStation M Pro
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