Cisco Systems MEMCUE-256D User Manual

Installing the NM-CUE 256-MB SDRAM DIMM
Memory Card

Product Number: MEMCUE-256D=

This document describes how to install a 256-MB SDRAM DIMM memory card in the NM-CUE
network module .

This document is intended for the network module installer, who should be familiar with electronic
circuitry and wiring practices and have experience as an electronic or electromechanical technician. Use
this document in conjunction with the Regulatory Compliance and Safety Information document for your
router.

Note For complete installation instructions for network module installation in Cisco 2600 series, Cisco 3600

series, and Cisco 3700 series routers, see the online document Installing Advanced Integration Modules
in Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Routers at the following URL:

http://www.cisco.com/en/US/docs/routers/access/2600/hardware/module/installation/guide/aims_ins.ht
ml

Note For complete installation instructions for network module installation in Cisco 2800 series integrated

services routers, see the online document Installing and Upgrading Internal Modules in Cisco 2800
Series Routers at the following URL:

http://www.cisco.com/univercd/cc/td/doc/product/access/acs_mod/2800/hw/10_hw.htm#wp1028352

Note For complete installation instructions for network module installation in Cisco 3800 Series Integrated

Services Routers, see the online document Installing and Upgrading Internal Components in Cisco 3800
Series Routers at the following URL:

http://cisco.com/en/US/docs/routers/access/3800/hardware/installation/guide/hw.html

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Copyright © 2005 Cisco Systems, Inc. All rights reserved.

Installing a 256-MB SDRAM DIMM Memory Card in the NM-CUE Network Module

NM-CUE network modules have 256 MB of SDRAM installed on the system board. You can install an
additional SDRAM DIMM in the SDRAM DIMM connector to expand system memory to a maximum
of 512 MB.

Caution When you remove or install DIMMs, always wear 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 part of the
chassis.

Caution Handle SDRAM DIMMs by the edges only. DIMMs are ESD-sensitive components and can be damaged

by mishandling.

SDRAM DIMMs have a polarization notch on the mating edge to prevent incorrect insertion. Figure 2
shows the polarization notch on an SDRAM DIMM.

To install a 256-MB SDRAM DIMM memory card in the NM-CUE network module, follow these steps:

Step 1 Remove the daughter card from the NM-CUE system board. (See Figure 1.)

Installing the NM-CUE 256-MB SDRAM DIMM Memory Card

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Figure 1 NM-CUE System Board with Daughter Card

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2

4

3

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1 Daughter card screws 3 NM-CUE module screws

2 Daughter card 4 256-MB SDRAM DIMM

Step 2

Step 3 Make sure that both latches on the SDRAM DIMM connector are in the open position.

Step 4 Orient the SDRAM DIMM so that the polarization notch lines up with the polarization key on the

Locate the existing 256-MB SDRAM DIMM memory card socket on the NM-CUE. (See Figure 1.)

connector. (See Figure 2.)

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Installing the NM-CUE 256-MB SDRAM DIMM Memory Card

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