Lenovo a57 9702 Zusätzliches Handbuch
Notes:
a.
Notice
the
orientation
of
the
notches
1
on
the
microprocessor.
This
is
important
when
reinstalling
the
microprocessor
on
the
new
system
board.
b.
Do
not
drop
anything
onto
the
microprocessor
socket
while
it
is
exposed.
The
socket
pins
must
be
kept
as
clean
as
possible.
15.
On
the
new
system
board,
release
the
lever
securing
the
microprocessor
retainer
and
then
pivot
the
retainer
until
it
is
fully
open.
Note:
There
will
be
a
black
plastic
cover
on
the
microprocessor
retainer
to
protect
the
socket
on
the
new
system
board.
Remove
the
black
plastic
cover
and
place
it
on
the
microprocessor
socket
of
the
failing
system
board
when
you
complete
this
procedure.
16.
Holding
the
microprocessor
with
your
fingers,
position
the
microprocessor
so
that
the
notches
on
the
microprocessor
are
aligned
with
the
tabs
in
the
microprocessor
socket
on
the
new
system
board.
Important
To
avoid
damaging
the
microprocessor
contacts,
do
not
tilt
the
microprocessor
when
installing
it
into
the
socket.
17.
Lower
the
microprocessor
straight
down
into
the
system
board
socket
of
the
new
system
board.
18.
To
secure
the
microprocessor
in
the
socket,
close
the
microprocessor
retainer
and
lock
it
into
position
with
the
small
handle.
19.
Install
the
new
retention
module
(if
required)
on
the
new
system
board.
20.
Install
the
heat
sink
and
fan
assembly
on
the
new
system
board.
98
Hardware
Maintenance
Manual