IBM THINKCENTER 8189 User Manual
Page 18

001
1.
Power-off
the
computer
and
all
external
devices.
2.
Make
sure
that
all
external
cables
and
power
cords
are
properly
connected.
3.
Remove
the
cover
and
make
sure
that
all
cables
to
the
system
board
are
seated
properly.
4.
Set
all
monitor
controls
to
the
middle
position.
5.
Power-on
all
external
devices.
6.
Power-on
the
computer.
7.
Check
the
power-on
indicator
and
listen
for
the
fan(s).
DID
THE
COMPUTER
POWER-ON
AND
STAY
ON?
YES,
continue
to
002 .
NO,
go
to
002
DID
YOU
HEAR
ANY
BEEPS
WHEN
POWERING
ON?
YES,
go
to
NO,
continue
to
003 .
003
IS
ANYTHING
DISPLAYED
ON
THE
MONITOR
SCREEN?
YES,
continue
to
004 .
NO,
make
sure
that
the
monitor
is
working
properly.
Most
monitors
have
some
sort
of
diagnostic
self
test.
Refer
to
the
manual
for
your
monitor.
If
you
determine
that
the
monitor
is
working
properly,
make
sure
it
is
properly
connected
to
the
computer.
Otherwise,
go
to
004
DID
YOU
RECEIVE
THE
EXPECTED
RESPONSE?
YES,
continue
to
005 .
NO,
proceed
to
006 .
005
Run
the
Diagnostic
programs.
If
necessary,
refer
to
v
If
you
receive
an
error,
replace
the
part
that
the
diagnostic
program
calls
out
or
go
to
v
If
an
installed
device
is
not
recognized
by
the
diagnostics
program,
that
device
might
be
defective.
12
Hardware
Maintenance
Manual