Cisco Systems 3620 manual Removing Screws from the Motherboard

Installing the Fan-Speed Controller

Figure 4 Removing Screws from the Motherboard

Remove 2 screws

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Step 3 Connect the two fan connectors to the two fan-speed controller connectors. (See Figure 5.)

Note You can connect either fan connector to either fan-speed controller connector. They are interchangeable.

Step 4 Connect any one of the two power supply connectors to the single fan-speed controller power connector. (See Figure 5.)

Note Only one power supply connector is attached to the fan-speed controller. The second power supply connector is not used, and does not affect system operation.

Installing a Fan-Speed Controller in Cisco 3620 Routers 9