8.
Remove
the
protective
cover
2
that
protects
the
gold
contacts
on
the
new
microprocessor
1
.
9.
Hold
the
new
microprocessor
and
align
the
notches
on
it
with
the
tabs
in
the
microprocessor
socket,
or
align
the
small
triangle
on
one
corner
with
the
corresponding
beveled
corner
of
the
microprocessor
socket.
10.
Lower
the
new
microprocessor
straight
down
into
the
microprocessor
socket
on
the
system
board.
11.
Close
the
microprocessor
retainer
and
lock
it
into
position
with
the
small
handle
to
secure
the
new
microprocessor
in
the
socket.
12.
Reinstall
the
heat
sink.
See
“Replacing
the
heat
sink”
on
page
19.
13.
Reinstall
any
other
parts
or
reconnect
any
other
cables
you
removed.
14.
Go
to
“Completing
the
parts
replacement”
on
page
30.
Replacing
the
adapter
card
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
adapter
card.
To
replace
the
adapter
card:
1.
Open
the
computer
cover.
See
“Opening
the
computer
cover”
on
page
12.
2.
Locate
the
system
board
and
disconnect
all
cables
connected
to
the
system
board.
See
“Locating
parts
on
the
system
board”
on
page
10.
Chapter
2.
Installing
options
and
replacing
hardware
23
Summary of Contents for 6136A1U
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