The
following
illustration
shows
the
location
of
the
light
path
diagnostics
switch
on
the
optional
IBM
BladeCenter
Memory
and
I/O
Expansion
Blade.
Light path diagnostics
System
board
LEDs
The
following
illustration
shows
the
LEDs
on
the
system
board.
You
must
remove
the
blade
server
from
the
BladeCenter
unit,
open
the
cover
or
remove
any
optional
expansion
units,
and
press
the
light
path
diagnostics
switch
to
light
any
error
LEDs
that
were
turned
on
during
processing.
Diagnosing
problems
using
the
light
path
LEDs
is
described
in“Light
path
diagnostics”
on
page
93.
Note:
Some
system
boards
are
not
equipped
with
the
power
jumper
error
LED.
SAS 1 hard disk drive error LED
SAS 0 hard disk drive error LED
Battery error LED
Power jumper error LED, if equipped
Microprocessor 1 error LED
Microprocessor 2 error LED
Light path diagnostics panel
DIMM 4 error LED
DIMM 3 error LED
DIMM 2 error LED
DIMM 1 error LED
Chapter
1.
Introduction
9
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