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)

PN 9033946 Page 1 of 5

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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