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The
following
illustration
shows
the
LEDs
on
the
I/O
board.
BMC error LED (DS7B1)
Primary IDE
error LED (DS2H1)
Secondary IDE
error LED (DS6H1)
Processor
board
error LED (DS8A2)
Board error
(DS7A2)
Light path
diagnostics
button (S8A1)
NMI error LED (DS7A3)
Temperature error LED (DS7A4)
I/O board error LED (DS7A1)
Light path
diagnostics LED (green)
(DS8A1)
For
example:
A
blade
server
error
has
occurred
and
you
have
noted
that
the
blade
server
blade-error
LED
is
lit
on
the
blade
server
control
panel.
You
then:
1.
Remove
the
blade
server
from
the
BladeCenter
unit.
2.
Place
the
blade
server
on
a
flat,
non-conductive
surface.
3.
Remove
the
cover
from
the
blade
server.
4.
Press
and
hold
the
light
path
diagnostics
button
to
relight
the
LEDs
that
were
lit
before
you
removed
the
blade
server
from
the
BladeCenter
unit.
The
LEDs
will
remain
lit
for
as
long
as
you
press
the
button,
to
a
maximum
of
25
seconds.
Use
the
table
at
“Light
path
diagnostics”
on
page
86
to
help
determine
the
cause
of
the
error
and
the
action
you
should
take.
Memory
errors
If
a
memory
problem
occurs,
complete
the
following
steps
before
replacing
a
DIMM:
1.
Reseat
both
DIMMs
in
the
bank.
2.
Check
for
a
memory
type
mismatch
in
the
bank.
3.
Run
the
diagnostic
programs.
For
more
information
about
memory,
see
“Installing
memory
modules”
on
page
44.
Chapter
3.
Diagnostics
29