Installation guide

Replacing Memory in Cisco 4000 Series Routers C-7
Replacing Main Memory SIMMs
Step 5 Hold the SIMM by the edges with your thumb and index finger and lift it out of
the socket. Place the removed SIMM in an antistatic bag to protect it from ESD
damage.
Step 6 Repeat Step 2 through Step 5 for each main memory SIMM card.
Proceed to the next section, “Installing Main Memory SIMMs.”
Installing Main Memory SIMMs
Take the following steps to install main memory SIMMs:
Step 1 Put on 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 On the motherboard, locate the main memory SIMM card sockets shown in the
upper right corner of Figure C-1 for the Cisco 4000-M and Figure C-2 for the
Cisco 4500-M and Cisco 4700-M. All of the sockets should be empty. If not,
follow the steps in the section “Removing Main Memory SIMMS” earlier in this
chapter.
Caution Handle SIMMs by the card edges only. SIMMs are ESD-sensitive components
and can be damaged by mishandling.
Step 3 Hold the SIMM with the polarization notch on the right and the component side
away from you with the connector edge at the bottom. (See Figure C-3.)
Step 4 Beginning with the SIMM nearest the edge of the motherboard, insert the main
memory SIMM card at a 45-degree angle and rock it into its vertical position (see
Figure C-5), using the minimum amount of force required. When the SIMM is
properly seated, the socket guide posts will insert through the alignment holes, and
the connector springs will click into place.
Step 5 Ensure that each SIMM is straight and that the alignment holes (as shown in
Figure C-5) line up with the plastic socket guides on the socket.