Installation guide

Replacing Memory in Cisco 4000 Series Routers C-9
Replacing Shared-Memory SIMMs
Caution You will feel some resistance, but do not use excessive force on the SIMM and
do not touch the surface components to avoid damaging them.
Step 6 Repeat Step 2 through Step 5 for each main memory SIMM.
If you are done with all SIMM replacement procedures, proceed to the section “Replacing
Network Processor Modules” in the chapter “Configuring the Cisco 4000 Series Chassis.”
Replacing Shared-Memory SIMMs
Use the following procedures to replace shared-memory SIMMs in a Cisco 4000-M,
Cisco 4500-M, or Cisco 4700-M.
Removing Shared-Memory SIMMs
Take the following steps to remove the shared-memory SIMMs:
Step 1 Unplug the chassis power cord and network connections.
Step 2 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 3 Remove the chassis cover as described in the section “Accessing the Internal
Components of the Router” in the chapter “Configuring the Cisco 4000 Series
Chassis.”
Step 4 Remove and safely store all the network processor modules present as described
in the “Replacing Network Processor Modules” section in the chapter
“Configuring the Cisco 4000 Series Chassis.”
Step 5 Locate the shared-memory SIMM card socket shown on the left of the
motherboard as shown in Figure C-1 (for the Cisco 4000-M) and Figure C-2 (for
the Cisco 4500-M and Cisco 4700-M).
Step 6 Turn the chassis so that the rear of the chassis is closest to you.