Lenovo ThinkCentre M55e Hardware Maintenance Manual - Page 104

orientation

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a. Note the orientation of the notches 1 on the microprocessor. This is important when installing the new microprocessor on the system board. b. Do not drop anything into the socket while it is open. Keep all contacts as clean as possible. 6. Make sure that the lever on the microprocessor retainer is fully open. 7. Remove the black cover 2 that protects the gold contacts on the new microprocessor 1 . 8. Position the microprocessor so that the notches on the microprocessor are aligned with the tabs in the microprocessor socket. Important To avoid damaging the microprocessor contacts, do not tilt the microprocessor when installing it into the socket. 98 Hardware Maintenance Manual

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a.
Note
the
orientation
of
the
notches
±1²
on
the
microprocessor.
This
is
important
when
installing
the
new
microprocessor
on
the
system
board.
b.
Do
not
drop
anything
into
the
socket
while
it
is
open.
Keep
all
contacts
as
clean
as
possible.
6.
Make
sure
that
the
lever
on
the
microprocessor
retainer
is
fully
open.
7.
Remove
the
black
cover
±2²
that
protects
the
gold
contacts
on
the
new
microprocessor
±1²
.
8.
Position
the
microprocessor
so
that
the
notches
on
the
microprocessor
are
aligned
with
the
tabs
in
the
microprocessor
socket.
Important
To
avoid
damaging
the
microprocessor
contacts,
do
not
tilt
the
microprocessor
when
installing
it
into
the
socket.
98
Hardware
Maintenance
Manual