Enterasys Networks DFE-256MB-UGK User Manual

Memory Upgrade Kit (DFE-256MB-UGK)

Before You Begin

Caution: Only authorized personnel should install the DFE Series Module Memory Upgrade Kit

(DFE-256MB-UGK).

These installation instructions describe how to upgrade the Dual-Inline Memory Module (DIMM)
on a DFE series module from 128 MB to 256 MB using the 256 MB SDRAM DIMM included in this
DFE-256MB-UGK

Note: Access to advanced routing features, such as Protocol Independent Multicasting

(PIM) and Load Share Network Address Translation (LSNAT) currently require memory
greater than 128 MB. Please consult the Release Notes to see which additional features
require this memory upgrade.

To help eliminate any potential problems during or after installation, read and understand all of
the instructions in this document and in the release notes supplied with the DFE-256MB-UGK
upgrade kit.

DFE Series Module

Installation Instructions

kit.

If there are missing or damaged parts, or you need help installing the DIMM, contact Enterasys
Networks for assistance. (Refer to “Getting Help” at the end of this document.)

Kit Parts

Qty Item

1 256 MB SDRAM DIMM assembly

1 URL Location Card

1 This document (PN 9033946)

Required Tools

Qty Item

1 Antistatic wrist strap (not supplied)

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Preparation

Preparation

Caution: To prevent damage from static discharge, use an antistatic wrist strap, and observe all

static precautions during this procedure. Failure to do so could result in damage to the DIMM,
module, or both.

The DIMM is located on the main pc board assembly of the DFE Series Module. In some cases,
depending on the module to be upgraded, it may be necessary to remove a daughter board to gain
access to the existing DIMM. For information about the location and instructions to gain access to
the DIMM, refer to the associated DFE Series Module installation guide.

Before installing the DIMM, proceed as follows:

1. Notify the system administrator before starting any work on the system.

Tip: Before performing step 2, mark the cables connected to the DFE Series Module according to

9

2. If the DFE module is already installed in an E7, N7, or N3 chassis, disconnect any attached

their associated port numbers. This is recommended for ease of reinstallation.

cables, then remove it from the chassis.

Note: If you are not familiar with the DFE module removal and installation procedures, refer to the
associated module installation guide.

3. Place the DFE module on a flat non-static surface with the main board facing upward.

4. Locate the DIMM to be replaced on the main board.

Note: Depending on the DFE series module being upgraded, the daughter board may not be a
field-replaceable part. Refer to the associated DFE series module installation guide to determine if
the daughter board is a field-replaceable part.

There are two types of DIMM connectors used on the DFE series module. Depending on the
module, the DIMM is installed either at an angle or vertically. The replacement procedure in this
document applies to both types.

5. If the DIMM is under a daughter board, refer to the module installation guide for instructions
to remove the daughter board. To replace a DIMM, proceed to “DIMM Replacement

Procedure” below.

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DIMM Replacement Procedure

Although the following replacement procedure describes how to replace a DIMM in an angled
connector, the procedure also applies to DIMM replacement in a vertical connector.

Removing the Existing DIMM

Caution: Observe all antistatic precautions when handling sensitive electronic equipment.

Refer to Figure 1 and proceed as follows:

DIMM Replacement Procedure

1. Push the connector arms

2. Remove the module from the connector

Figure 1 Removing the Existing DIMM

Connector arms

➀

Installing the DIMM

➀ away from the DIMM ➁ to release it from the connector ➂.

➂.

À

Á

Â

À

➁

DIMM

Connector

➂

Caution: Observe all antistatic precautions when handling sensitive electronic equipment.

To install the memory module, refer to Figure 2 and proceed as follows:

1. With the connector arms
connector fingers

Caution: The connectors on different DFE modules may have the keys inside the connector
reversed. To prevent damaging the DIMM and main pc board, make sure that key slots
positioned to match those in the connectors. Otherwise, the DIMM and pc board will be damaged.

2. Push the memory module into the connector until the tabs on the two connector arms pull in
towards the DIMM alignment notches

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➂.

➀ set in the open position, insert the DIMM ➁ between the

➃ are

➄.

Completing the Installation

3. Push the DIMM ➁ further into the connector until the two DIMM alignment notches ➄ and

Figure 2 Installing the DIMM

the tabs on the two connector arms

Caution: If the DIMM is not firmly locked into position, the connector arms could be damaged when
installing the DFE module back into the chassis.

➀ lock the DIMM into place.

Ä

Connector arms

➀

DIMM

➁

Completing the Installation

To complete the installation, proceed as follows:

1. Notify the system administrator before installing the DFE module into the chassis.

2. Install the DFE module. If you are not familiar with the proper procedure to install a DFE
module, refer to the DFE Installation Guide for module installation instructions.

3. Disconnect the antistatic wrist strap ground lead.

À

Ã

Â

Connector fingers

➂

Key alignment slots

➃

Ã

Á

Ä

À

DIMM alignment notches (2)

➄

4. Note the cable labeling done before removing the cables, and reconnect the cables accordingly.

5. The upgraded memory module is now ready for operation.

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Getting Help

For additional support related to the module or this document, contact Enterasys Networks using
one of the following methods:

/

World Wide Web http://www.enterasys.com/support

Phone [phone]

Internet mail [e-mail]

To send comments or suggestions concerning this document to the Technical Writing
Department: [e-mail]

Make sure to include the document Part Number in the email message.

Before contacting Enterasys Networks for technical support, have the following information
ready:

• Your Enterasys Networks service contract number

Getting Help

1-800-872-8440 (toll-free in U.S. and Canada)

For the Enterasys Networks Support toll-free number in your country:

http://www.enterasys.com/support/gtac-all.html

To expedite your message, type [eth] in the subject line.

• A description of the failure

• A description of any action(s) already taken to resolve the problem (e.g., changing mode
switches, rebooting the unit, etc.)

• The serial and revision numbers of all involved Enterasys Networks products in the network

• A description of your network environment (layout, cable type, etc.)

• Network load and frame size at the time of trouble (if known)

• The device history (i.e., have you returned the device before, is this a recurring problem, etc.)

• Any previous Return Material Authorization (RMA) numbers

Enterasys Networks, Inc.
50 Minuteman Road
Andover, MA 01810

 2004 Enterasys Networks, Inc. All rights reserved.

Part Number: 9033946 February 2004

ENTERASYS NETWORKS, ENTERASYS MATRIX, LANVIEW, WEBVIEW, and any logos associated therewith, are trademarks
or registered trademarks of Enterasys Networks, Inc. in the United States and other countries.

All other product names mentioned in this manual may be trademarks or registered trademarks of their respective companies.

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