Name: Cisco 12000 Series
Brand: Cisco
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Cisco 12000 Series Router Memory Replacement Instructions

78-4338-16

Replacing and Upgrading Route Processor Route Memory

Required Tools and Equipment

You will need the following tools and parts to install or replace memory on the Cisco 12000 Series

Router GRP, PRP, or line cards:

• Flat-blade or Number 2 Phillips screwdriver.

Some early models of the GRP and line cards are equipped with slotted-head captive screws that

fasten the card in the card cage. Later models of the GRP, PRP, and line cards are equipped with

combination-head captive screws, which can take either a flat-bladed screwdriver or a Phillips

screwdriver.

• Your own ESD-prevention equipment or the disposable grounding wrist strap included with all

upgrade kits, field-replaceable units (FRUs), and spares for the Cisco 12000 Series Routers.

• Antistatic mat or surface.

• The DIMM modules for configuring the GRP, PRP, or line card memory (for the GRP, see Table 1;

for the PRP see Table 2; for line cards, see Table 4 and Table 6).

Replacing and Upgrading Route Processor Route Memory

This section describes how to replace or upgrade the route memory DRAM DIMMs on the GRP and the

SDRAM DIMMs on the PRP. Unless otherwise stated, throughout the remainder of this publication the

GRP and the PRP are called an RP.

Note If the router is equipped with a single RP, you must power down the router before removing the RP to

replace or upgrade processor memory DIMMs on the RP. If the router is equipped with an optional,

redundant RP, you can remove one of the RPs while the router is running without affecting router

operation. Redundant RPs should both have the same memory size.

This section contains the following procedures:

• Removing Route Memory DIMMs from an RP

• Installing Route Memory DIMMs on an RP

• Checking the Installation of RP Memory

If you are upgrading memory by adding a matching DIMM to an existing single-DIMM configuration,

use the procedure in the “Installing Route Memory DIMMs on an RP” section on page 21.

If you are replacing a defective DIMM or performing a memory upgrade that requires the existing

DIMMs to be removed, you must first remove the existing DIMMs. In that case, use the procedure in the

“Removing Route Memory DIMMs from an RP” section on page 20. After you have removed the DIMM

from the RP, proceed to the “Installing Route Memory DIMMs on an RP” section on page 21.

Cisco 12000 Series Replacement Instructions

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