Replacing
the
microprocessor
(Types
7396,
7397,
and
7398)
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.
Lay
the
computer
on
the
right
side
to
make
the
system
board
and
microprocessor
accessible.
3.
Disconnect
the
heat
sink
and
fan
assembly
cable
from
the
system
board.
See
“Identifying
parts
on
the
system
board”
on
page
87.
4.
Remove
the
four
screws
securing
the
heat
sink
and
fan
assembly
to
the
system
board.
Notice
that
there
is
a
retention
bracket
on
the
back
side
of
the
system
board.
5.
Lift
the
heat
sink
and
fan
assembly
off
the
failing
system
board.
132
Lenovo
3000
J
Series
Summary of Contents for 7387
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