Lenovo 3797 User Manual
Page 111
Attention:
v
Do
not
touch
the
microprocessor
contact;
handle
the
microprocessor
by
the
edges
only.
Contaminants
on
the
microprocessor
contacts,
such
as
oil
from
your
skin,
can
cause
connection
failures
between
the
contacts
and
the
socket.
v
Handle
the
microprocessor
carefully.
Dropping
the
microprocessor
during
installation
or
removal
can
damage
the
contacts.
v
Do
not
use
excessive
force
when
you
press
the
microprocessor
into
the
socket.
v
Make
sure
that
the
microprocessor
is
oriented
and
aligned
and
positioned
in
the
socket
before
you
try
to
close
the
lever.
3.
Align
the
microprocessor
with
the
socket
(note
the
alignment
mark
and
the
position
of
the
notches);
then,
carefully
place
the
microprocessor
on
the
socket.
Close
the
microprocessor
bracket
frame.
Note:
The
microprocessor
fits
only
one
way
on
the
socket.
1
Microprocessor
2
Alignment
marks
3
Notches
4.
Carefully
close
the
microprocessor
release
lever
to
secure
the
microprocessor
in
the
socket.
5.
Install
a
heat
sink
on
the
microprocessor.
Attention:
Do
not
touch
the
thermal
grease
1
on
the
bottom
of
the
heat
sink
2
or
set
down
the
heat
sink
after
you
remove
the
plastic
cover.
Touching
the
thermal
grease
will
contaminate
it.
The
following
illustration
shows
the
bottom
surface
of
the
heat
sink.
a.
Make
sure
that
the
heat-sink
release
lever
is
in
the
open
position.
b.
Remove
the
plastic
protective
cover
from
the
bottom
of
the
heat
sink.
Chapter
5.
Installing
optional
devices
and
replacing
customer
replaceable
units
95