Cisco 3825 Series Installation And Upgrades page 14

Upgrading the Cisco 3825 Fan Unit
Removing the Fan Unit
After you remove the router cover, follow these steps to remove the fan unit.
Before you begin, read the safety warnings as described in the "Safety Warnings and Guidelines" section
Note
on page 2.
Locate the three fan connectors on the motherboard and remove them by lifting the connector away from
Step 1
the receptacle, as shown in Figure 3.
Figure 3 Lifting the Connector from the Receptacle
Installing and Upgrading Fans in the Cisco 3825 Series Routers
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