Lenovo ThinkCentre A50 Hardware Maintenance Manual - Page 104
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7. Remove the heat sink from the microprocessor by gently twisting the heat sink to break the seal formed by the thermal grease and lifting it straight up. 8. Place the heat sink on its side on a clean work surface so that the thermal grease is not contaminated. 9. Use the handle at the rear of the system board to pull the system board and tray out the rear of the chassis. 98 Hardware Maintenance Manual
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7.
Remove
the
heat
sink
from
the
microprocessor
by
gently
twisting
the
heat
sink
to
break
the
seal
formed
by
the
thermal
grease
and
lifting
it
straight
up.
8.
Place
the
heat
sink
on
its
side
on
a
clean
work
surface
so
that
the
thermal
grease
is
not
contaminated.
9.
Use
the
handle
at
the
rear
of
the
system
board
to
pull
the
system
board
and
tray
out
the
rear
of
the
chassis.
98
Hardware
Maintenance
Manual