Lenovo 7569 Manuel D’Utilisation
8.
Alternate
tightening
each
screw
a
small
and
equal
amount
until
the
heat
sink
and
fan
assembly
is
secured
to
the
system
board.
Do
not
over-tighten
the
screws.
9.
Connect
the
new
heat
sink
and
fan
assembly
cable
to
the
microprocessor
fan
connector
on
the
system
board.
10.
Go
to
Replacing
the
microprocessor
Attention
Do
not
open
your
computer
or
attempt
any
repair
before
reading
and
understanding
the
“Important
safety
information”
in
the
ThinkCentre
Safety
and
Warranty
Guide
that
came
with
your
computer.
To
obtain
a
copy
of
the
ThinkCentre
Safety
and
Warranty
Guide,
go
to:
http://www.lenovo.com/support
This
section
provides
instructions
on
how
to
replace
the
microprocessor.
CAUTION:
The
heat
sink
and
microprocessor
might
be
very
hot.
Turn
off
the
computer
and
wait
three
to
five
minutes
to
let
the
computer
cool
before
removing
the
computer
cover.
To
replace
the
microprocessor:
1.
Remove
the
computer
cover.
See
2.
Lay
the
computer
on
its
side
for
easier
access
to
the
system
board.
3.
Remove
any
parts
or
cables
that
may
prevent
your
access
to
the
system
board.
4.
Disconnect
the
heat
sink
and
fan
assembly
cable
from
the
microprocessor
fan
connector
on
the
system
board.
See
5.
Remove
the
heat
sink
and
fan
assembly.
See
6.
Place
the
heat
sink
and
fan
assembly
on
its
side
so
that
the
thermal
grease
does
not
come
in
contact
with
anything.
100
Hardware
Maintenance
Manual