IBM 4851 514 Service Guide - Page 81

Removing

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Updated October, 2008 Removing and replacing FRUs Figure 50. Tailgate remove and replace. This figure shows the screws removed for illustration purposes only. 3. Remove the rear inner metal cover. See "Rear metal panel cover - removing and replacing" on page 62. 4. Remove the power supply. See "Power supply - removing and replacing" on page 68. 5. See Figure 50. Loosen the five screws, but do not remove them. 6. Pull the connector panel out and disconnect the fan cable from the system board. Reverse the steps to reassemble. Make sure the two connectors on the back of the tailgate line up with the connectors on the system board. Removing the fan To remove and replace the fan: 1. Remove the rear cover as described at "Rear cover - removing and replacing" on page 61. 2. Remove the rear inner metal cover. See "Rear metal panel cover - removing and replacing" on page 62. 3. Disconnect the fan cable from the system board. 4. Loosen the two screws holding the fan and remove. 5. To replace, align the fan with the two screw holes, insert and tighten screws. 6. Connect the fan cable to the system board. Chapter 5. Removing and replacing FRUs 65

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3.
Remove
the
rear
inner
metal
cover.
See
“Rear
metal
panel
cover
–
removing
and
replacing”
on
page
62.
4.
Remove
the
power
supply.
See
“Power
supply
–
removing
and
replacing”
on
page
68.
5.
See
Figure
50.
Loosen
the
five
screws,
but
do
not
remove
them.
6.
Pull
the
connector
panel
out
and
disconnect
the
fan
cable
from
the
system
board.
Reverse
the
steps
to
reassemble.
Make
sure
the
two
connectors
on
the
back
of
the
tailgate
line
up
with
the
connectors
on
the
system
board.
Removing
the
fan
To
remove
and
replace
the
fan:
1.
Remove
the
rear
cover
as
described
at
“Rear
cover
–
removing
and
replacing”
on
page
61.
2.
Remove
the
rear
inner
metal
cover.
See
“Rear
metal
panel
cover
–
removing
and
replacing”
on
page
62.
3.
Disconnect
the
fan
cable
from
the
system
board.
4.
Loosen
the
two
screws
holding
the
fan
and
remove.
5.
To
replace,
align
the
fan
with
the
two
screw
holes,
insert
and
tighten
screws.
6.
Connect
the
fan
cable
to
the
system
board.
Figure
50.
Tailgate
remove
and
replace.
This
figure
shows
the
screws
removed
for
illustration
purposes
only.
Removing
and
replacing
FRUs
Updated
October,
2008
Chapter
5.
Removing
and
replacing
FRUs
65