2.
Connect
the
light
path
diagnostics
ribbon
cable
and
front
USB
cable
to
the
I/O
board.
3.
Slide
the
front-panel
assembly
into
the
server
until
the
blue
tab
on
the
chassis
engages.
4.
Replace
the
bezel
and
top
cover.
5.
Reconnect
external
cables
and
power
cords.
I/O
board
When
replacing
the
I/O
board,
you
must
either
update
the
server
with
the
latest
SAS
firmware
or
restore
the
pre-existing
firmware
from
a
diskette
or
CD
image.
The
I/O
board
contains
three-pin
jumper
blocks.
See
“I/O
board
internal
connectors
and
jumpers”
on
page
8
for
the
location
and
description
of
each
jumper
block.
Replacing
the
I/O
board
To
remove
the
I/O
board,
complete
the
following
steps.
AC
D
C
1.
Read
the
safety
information
that
begins
on
page
vii,
and
“Handling
static-sensitive
devices”
on
page
31.
2.
Turn
off
the
server
and
peripheral
devices,
and
disconnect
the
power
cords
and
all
external
cables
necessary
to
replace
the
device.
3.
Remove
the
top
cover.
Attention:
When
moving
the
I/O
board,
do
not
allow
it
to
impact
any
components
or
structures
inside
the
server.
4.
Open
the
release
latches
on
both
ends
of
the
I/O
board
and
pull
the
board
from
the
server
slightly.
Chapter
4.
Removing
and
replacing
server
components
49
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