4.
Open
the
top
cover
(see
“Opening
the
cover”
on
page
88).
5.
Remove
the
memory-board
assembly
(see
“Memory
board”
on
page
115
for
details).
6.
Remove
the
shipping
thumbscrews
from
the
right
side
of
the
server,
and
lift
the
retention
bracket
from
the
server.
7.
Remove
the
processor-board
assembly
(see
“Processor-board
assembly”
on
page
119
for
details).
8.
Remove
the
PCI-X
board
assembly
(see
“PCI-X
board
assembly”
on
page
123).
9.
Remove
the
two
screws
1
that
secure
the
ac
box
assembly
mechanism
to
the
chassis.
10.
Remove
the
two
screws
2
that
secure
the
side
panel
to
the
chassis,
and
lift
the
panel
away
from
the
server.
11.
Detach
each
of
the
two
power
connectors
near
the
power
supplies:
a.
Using
a
screwdriver,
depress
the
two
tabs
on
the
connector.
b.
Pull
the
connector
toward
the
rear
of
the
server
and
detach.
12.
Detach
the
bundled
power
cable
from
the
chassis:
a.
Pull
the
bundled
power
cable
through
the
slot
in
the
crossbar.
b.
Slide
the
two
power
connectors
through
the
opening
3
on
the
side
of
the
server.
13.
Remove
the
ac
box
assembly
from
the
server.
NOTE:FOR PROPER AIRFLOW, REPLACE FANWITHIN 2 MINUTES
FRONT OF BOX
NOTE:FOR PROPER AIRFLOW, REPLACE FANWITHIN 2 MINUTES
FRONT OF BOX
14.
To
install
the
ac
box
assembly,
reverse
the
above
steps.
Note:
When
replacing
the
side
panel:
a.
Line
up
the
tabs
on
the
panel
with
the
notches
on
the
server,
then
slide
the
side
panel
towards
the
rear
of
the
server.
b.
Position
the
bundled
cable
towards
the
bottom
of
the
panel
before
securing
the
panel.
c.
The
screw
nearest
the
rear
of
the
server
secures
both
the
panel
and
the
ac
box
assembly
mechanism.
142
IBM
xSeries
450
Type
8688:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide