Removing the processor fan (Models 742, 782 only)
Follow these steps to remove and replace the processor fan:
1. Follow the instructions in “Removing the covers” on page 29 to remove the front
bezel and top cover.
2. Follow the instructions in “Removing the top plate” on page 32 to remove the
top plate.
3. Follow the instructions in “Removing the air duct (Models 722, 74x, 78x, and
C4x)” on page 44.
4. Remove the processor fan by pressing down on the levers (B in Figure 33) to
release the connections.
5. Lift to remove.
6. To replace, align the fan with the board connectors and press down to lock into
place.
Removing the heat sink and processor
Attention: Establish personal grounding before touching this unit. For more
information, see “Federal Communications Commission (FCC) statement” on page
105.
To remove the heat sink and processor:
1. Follow the instructions in “Removing the covers” on page 29 to remove the
front bezel and top cover.
2. Follow the instructions in “Removing the top plate” on page 32 to remove the
top plate.
3. If installed, remove the air duct.
4. For Models 7x2, go to step 9 on page 46. For Models 7x1, continue with the
steps.
Figure 33. Processor fan and levers
Updated July 14, 2008
Chapter 2. Removal and replacement procedures 45
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