Cisco 2525 Guia do Utilizador descarregar pdf (Página 121)

Maintaining the Cisco 2524 and Cisco 2525 Routers A-9

Upgrading the DRAM SIMM

This line shows how much memory is installed (in this example, 4092K/2048K). The ﬁrst

number represents primary memory and the second number represents shared memory.

Tools and Equipment Required

You will need the following tools to remove and replace the DRAM SIMM on the router:

• Medium-size ﬂat-blade screwdriver (1/4 inch [0.625 cm])

• ESD-preventive wrist strap

• The DRAM SIMM required for your planned upgrade

DRAM SIMM Installation

Take the following steps to install the DRAM SIMMs:

Step 1 Turn OFF power to the router, but to channel ESD voltages to ground, do not

unplug the power cord.

Step 2 Attach an ESD-preventive wrist strap.

Step 3 Open the cover following the instructions in the section “Opening the Chassis”

earlier in this appendix.

Step 4 Orient the chassis as shown in Figure A-3, with the primary-memory DRAM

SIMM socket toward you.

Step 5 Remove the existing DRAM SIMM by pulling outward on the connectors to

unlatch them, as shown in Figure A-4. Be careful not to break the holders on the

SIMM connector.

Caution To prevent damage, do not press on the center of the SIMMs. Handle each SIMM

carefully.

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Cisco 2525 Guia do Utilizador Página 121