Cisco Systems OL-2056-02 Preventing Electrostatic Discharge Damage, Tools and Equipment Needed

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Chapter 5 Installing Memory in the Router

Installing and Formatting Compact Flash Memory Cards in Cisco 3631 Routers

Installing and Formatting Compact Flash Memory Cards in Cisco 3631 Routers

This section describes how to install Compact Flash memory cards in Cisco 3631 routers, how to format the cards into a Class B Flash file system (low end file system) or a Class C Flash file system (similar to DOS), and how to perform file and directory operations in each file system. In Cisco 3631 routers, the Compact Flash memory card mounts on a connector on the CPU/mainboard. You can install a Compact Flash memory card with 32-, 64-, or 128-MB of memory.

This document contains the following sections:

•Preventing Electrostatic Discharge Damage, page 5-44

•Tools and Equipment Needed, page 5-44

•Compact Flash Memory Card Installation and Removal, page 5-45

•Formatting Procedures for Compact Flash Memory Cards, page 5-49

•File and Directory Procedures, page 5-51

Preventing Electrostatic Discharge Damage

Compact Flash memory cards are sensitive to electrostatic discharge (ESD) damage. ESD damage, which can occur when electronic cards or components are handled improperly, results in complete or intermittent failures.

Follow these guidelines to prevent ESD damage:

•Always use an ESD wrist or ankle strap and ensure that it makes good skin contact.

•Connect the equipment end of the strap to an unfinished chassis surface.

•Place a removed Compact Flash memory card on an antistatic surface or in a static shielding bag. If the card will be returned to the factory, immediately place it in a static shielding bag.

•Avoid contact between the card and clothing. The wrist strap protects the card from ESD voltages on the body only; ESD voltages on clothing can still cause damage.

•Do not remove the wrist strap until the installation is complete.

Caution For safety, periodically check the resistance value of the antistatic strap. The measurement should be between 1 and 10 megohms (Mohms).

Tools and Equipment Needed

You need the following tools and equipment to remove and install Compact Flash memory cards:

•ESD-preventive wrist strap

•Antistatic bag or mat

•Number 2 Phillips screwdriver or flat blade screwdriver

Cisco 3600 Series Hardware Installation Guide

5-44	OL-2056-02

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Contents Installing Memory in the Router Accessing the Mainboard Removing the Cisco 3620 or Cisco 3640 Router CoverPerform the following procedure to remove the chassis cover Removing the Cisco 3631 Router CoverLift cover Slide cover Removing the Cisco 3631 Router CoverRemoving the Cisco 3660 Mainboard Tray Replacing Dram and Sdram Dram SIMMs Used in Cisco 3620 and Cisco 3640 Routers Dram Simm Locations in the Cisco 3620 Router Bank Total Simm Memory 16 MBNot installed 16 MB MB-Dual2 24 MB 32 MB 40 MB 48 MB Bank 0 Simm Total MemoryDram Simm Orientation Dram SimmRemoving Dram Simms Top view Front of chassisInstalling Dram SIMMs Repeat through for each SimmSdram DIMMs Used in the Cisco 3631 and Cisco 3660 Router 64 MB Not installed 32 MB 96 MB 128 MB 160 MB 192 MB 256 MB Bank 0 Simm Bank 1 Simm Total Memory11 Sdram Dimm Locations in the Cisco 3660 Router Sdram Dimm Orientation 12 Sdram Dimm13 Removing and Installing Sdram DIMMs Removing Sdram DimmsInstalling Sdram DIMMs Replacing Flash Memory SIMMs16 MB 20 MB 12 MB 24 MB 32 MB 64 MB Bank12 MB 14 Flash Memory Simm Locations on the Cisco 3620 Mainboard Removing Flash Memory SIMMs 16 Flash Memory Simm Locations on the Cisco 3660 MainboardInstalling Flash Memory SIMMs 17 Removing Flash Memory SIMMsReplacing the ROM Cisco 3620, Cisco 3640, and CiscoLocate the ROM on the mainboard. See -19through Figure 19 ROM Location on the Cisco 3620 Mainboard20 ROM Location on the Cisco 3640 Mainboard 22 Removing the ROM from the Cisco 3660 Mainboard Testing ROM Installation CiscoReboot the router using the new ROM image Select the ROM image for next rebootRouter # upgrade rom-monitor preference readonly upgrade Verify the ROM versionReplacing the Cover on a Cisco 3620 or Cisco 3640 Router 24 Replacing the Cisco 3620 Router CoverReplacing the Cover on a Cisco 3631 Router Insert tabs and slide cover Close cover 26 Replacing the Cisco 3631 Router CoverReplacing the Cisco 3660 Mainboard Tray 27 Replacing the Cisco 3660 Mainboard TrayInstalling a Flash Memory Card 28 Setting the Write-Protect Switch 30 Installing a Flash Memory Card in a Cisco 3660 Router Removing a Flash Memory Card Enter global configuration mode Router# configure terminalRouterconfig# partition slot1 1 2 Partitioning a Flash Memory CardDisplaying the Contents of a Flash Memory Card Copying a Running Configuration File to a Flash Memory Card Router# copy running-config slot03myconfigRouter# copy slot03TESTFILE flash2TESTFILE2 Enter privileged Exec mode as followsCopying a File Between Slots Booting from a Flash Memory Card Router# copy slot03TESTFILE slot1Erasing the Contents of a Flash Memory Card Preventing Electrostatic Discharge Damage Tools and Equipment NeededCompact Flash Memory Card Installation and Removal Removing the Chassis CoverRemoving the Compact Flash Memory Card Removing the Cover from a CiscoInstalling the Compact Flash Memory Card Instructions on formatting the Compact Flash memory cardReinstalling the Cover Replacing the Cover on a CiscoFormatting Procedures for Compact Flash Memory Cards Safety Information document that accompanied this deviceROM monitor to recognize and boot the Flash Determining the File System on a Compact Flash Memory CardCommand Formatting Compact Flash Memory as a DOS File SystemClass B Flash file system Router# format flashFile and Directory Procedures Procedures for Use with DOS File SystemRouter# copy flashmy-config2 running-config File OperationsDelete Files from Compact Flash Memory Display the Contents of a Compact Flash CardDisplay Geometry and Format Information Display the Contents of a File Rename a File in FlashRemove a Directory Directory OperationsCreate a New Directory Procedures for Use with Class B Flash File System Enter a Directory and Determine Which Directory You AreDisplay the Contents of a Compact Flash Memory Card Router# squeeze flash Router# more flashc3725-i-mzOL-2056-02