Replacing
the
microprocessor
(Types
7390,
7391,
and
7392)
Note:
A
thermal
grease
syringe
is
required
to
complete
the
microprocessor
installation.
Make
sure
the
grease
syringe
is
available
before
beginning
the
procedure.
The
FRU
number
for
the
thermal
grease
is
91P8835.
1.
Remove
the
cover.
See
“Removing
the
cover”
on
page
114.
2.
Lift
the
fan
duct
off
the
heat
sink
fan.
3.
Disconnect
the
heat
sink
and
fan
assembly
cable
from
the
system
board.
See
“Identifying
parts
on
the
system
board”
on
page
116.
4.
Rotate
handle
1
to
release
the
heat
sink
clamp
and
then
disengage
the
clamp
from
the
plastic
retention
bracket.
5.
Lift
the
heat
sink
and
fan
assembly
off
the
system
board.
136
Lenovo
3000
J
Series
Summary of Contents for 7387
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