Installation guide

Upgrading System Memory in Cisco 3700 Series Routers

OL-5423-02

Upgrading System Memory in Cisco 3725 Routers

Removing the Cisco 3725 Router Cover

To remove the router cover, follow these steps:

Step 1 Attach an ESD-preventive wrist strap and ensure that it makes good contact with your skin. Connect the

equipment end of the wrist strap to the metal back plate of the chassis, avoiding contact with the

connectors.

Step 2 Turn off the power and unplug the power cord.

Warning

Before opening the unit, disconnect the telephone-network cables to avoid contact with

telephone-network voltages.

Statement 1041

Step 3 Disconnect all network-interface cables from the rear panel.

Step 4 Place the chassis so that the rear panel faces you.

Step 5 Remove the six screws located on top of the cover. Set the screws aside in a safe place.

Step 6 Lift the front edge of the cover up to a 45-degree angle so that it clears the front of the chassis. (See

Figure 1 part 1.)

Step 7 Slide the cover to the side, away from the side with the fans, until the tabs are free from the slots. (See

Figure 1 part 2.)