Lenovo 3633 Installation And Service Manual page 158

The heat sink might become very hot during normal operation. Allow time for the heat sink to
cool down before you touch it.
a. Use a screwdriver to loosen the captive screws
b. Alternate among the screws until they break the seal with the microprocessor.
c. Gently twist the heat sink to free it from the microprocessor and then lift the heat sink off the
system board.
Figure 85. Heat sink removal
Step 5. Place the heat sink on its side on a clean, flat surface after removal.
Step 6. Remove the microprocessor.
a. Open the microprocessor retention latch by gently pressing down the handle a little bit and
then pushing the handle outward.
b. Open the microprocessor bracket. Keep the bracket in the open position.
c. Hold the microprocessor by its edges and carefully lift the microprocessor straight up and out
of the socket.
Attention: Handle the microprocessor carefully. Dropping the microprocessor during removal can
damage the contacts. In addition, contaminants on the microprocessor contacts, such as oil from
your skin, can cause connection failures between the contacts and the socket.
Lenovo System x3250 M6 Installation and Service Guide
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by rotating screws until each screw is loose.
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