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2. Remove the heat sink. If you have an UMA graphics heat sink, go to step c.
a. Loosen all of the captive screws (1) and (2) and then lift the switchable discrete graphics
heat sink (3) from the system board.
CAUTION: To prevent damage to the cooling tubes, do not lift the assembly by the
cooling tubes. The tubes bend easily.
68 Chapter 4 Removal and replacement procedures