9.
Disconnect
the
power
backplane;
then,
slide
it
to
the
side
and
set
it
out
of
the
way
(see
“Power
backplane”
on
page
59).
10.
Remove
the
six
screws
securing
the
two
heat
sink
retention
modules
to
the
system
board.
These
six
screws
also
secure
the
system
board
to
the
chassis.
11.
Remove
the
eight
screws
on
the
system
board
that
secure
the
system
board
to
the
chassis.
12.
Remove
the
four
stand-off
screws
from
the
rear
of
the
server.
13.
Lift
the
system
board
slightly
so
that
it
disengages
from
the
locator
pin.
14.
Slide
the
system
board
slightly
toward
the
front
of
the
server.
15.
Lift
up
the
left
side
of
the
system
board.
16.
Lift
the
rest
of
the
system
board
and
carefully
remove
it
from
server,
being
careful
not
to
disturb
any
surrounding
components.
17.
To
reinstall
the
board,
place
it
carefully
into
position
under
the
small
ledge
on
the
right
side
of
the
server,
then
put
it
down
and
slide
it
to
the
rear
of
the
server.
Ensure
the
locator
pin
engages
the
locator
hole
in
the
system
board.
Heat-sink retainer
bracket screws (6 places)
System board
screws (8 places)
I/O port screws
(4 places)
Locator pin
Figure
58.
System
board
removal
Chapter
4.
Service
replaceable
units
65
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