Closing The Chassis; Tools Required - Cisco 2500 Series Installation And Configuration Manual

Maintaining the Router
If you are installing system-code SIMMs in both sockets (CODE0 and CODE1), both SIMMs must be the
same size. For example, if a 4-MB system-code SIMM is already installed in your router, the new SIMM must
also be 4 MB. Populate the SIMM socket labeled CODE0 first; then populate CODE1.
Caution To prevent damage, do not press on the center of the SIMMs. Handle each SIMM carefully.
Figure B-4: Removing and Replacing the System-Code SIMM
Step 8 Position the new SIMM so that the polarization notch is located at the left end of the SIMM socket.
Caution To prevent damage, note that some Flash memory SIMMs have the components mounted on
the rear side; therefore, when inserting the SIMM, always use the polarization notch as a reference and
not the position of the components on the SIMM.
Step 9 Insert the new SIMM by sliding the end with the metal fingers into the appropriate SIMM connector
socket (labeled CODE0 or CODE1) at approximately a 45-degree angle to the system card. Gently rock the
SIMM back into place until the latches on both sides snap into place. Do not use excessive force because the
connector may break.
Step 10 Replace the router cover following the procedure in the next section,

Closing the Chassis

This section describes the procedure for closing the chassis by replacing the cover.

Tools Required

You will need the following tools to replace the cover:
Medium-size flat-blade screwdriver (1/4 inch [0.625 cm])
Size M 3.5 hex-head nut driver (optional)
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_fix/cis2500/2520/2520_23/c2520mnt.htm (6 of 7) [10/27/2000 3:08:02 PM]
"Closing the Chassis."