Cisco 1600 series Manual de usuario

Doc. No.

Cisco Systems, Inc.

170 West Tasman Drive

San Jose, CA 95134-1706

USA

Cisco Systems, Inc.

Corporate Headquarters

Installing or Replacing the DRAM SIMM

in Cisco 1600 Series Routers

Text Part Number: 78-3922-01

Cisco Product Numbers:

MEM1600-2D=

MEM1600-4D=

MEM1600-8D=

MEM1600-16D=

CPA016-MEM2D=

CPA016-MEM4D=

CPA016-MEM8D=

CPA016-MEM16D=

This document describes how to install or replace the dynamic random-access memory (DRAM)

single in-line memory module (SIMM) in Cisco 1600 series routers. You might need to upgrade the

DRAM SIMM for some Cisco Internetwork Operating System (Cisco IOS) feature sets or if the

router is storing large routing or spooﬁng tables.

This document contains the following sections:

•Tools and Equipment Required, page 2

•Preventing Electrostatic Discharge Damage, page 2

•Removing the Router Cover, page 3

•Installing or Replacing the DRAM SIMM, page 5

•Replacing the Router Cover, page 6

•Checking the DRAM SIMM Installation, page 7

•Obtaining Service and Support, page 8

•Cisco Connection Online, page 8

78-3922-01

2Installing or Replacing the DRAM SIMM in Cisco 1600 Series Routers

Tools and Equipment Required

The following tools are required to upgrade the router’s DRAM SIMM:

•Number 1 Phillips screwdriver

•One DRAM SIMM

Table 1 lists the DRAM SIMMs available for Cisco 1600 series routers.

Table 1 DRAM SIMMs for Cisco 1600 Series Routers

Note The DRAM SIMMs listed in Table 1 are nonparity SIMMs. You can install a parity SIMM in

the router; however, doing so will disable the 2 MB of DRAM that is stored on the ﬁxed memory

chips in the router.

Preventing Electrostatic Discharge Damage

Before installing a DRAM SIMM, read the electrostatic discharge (ESD) instructions in this section

to prevent damage to the equipment. ESD is a discharge of stored static electricity that can damage

equipment and impair electrical circuitry. It occurs when electronic components are improperly

handled and can result in complete or intermittent failures.

Following are guidelines for preventing ESD damage:

•Before opening the chassis, ensure that power to the router is off. Disconnect the power cable to

turn off power to the router.

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

•Avoid contact between equipment and clothing. The wrist or ankle strap only protects the

equipment from ESD voltages on the body; ESD voltages on clothing can still cause damage.

•Handle printed circuit cards by the edges only; avoid touching the components, traces, or any

connector pins.

•Place a removed card component side up on an antistatic surface or in a static shielding bag.

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

Caution To avoid damaging the equipment, periodically check the resistance value of the antistatic

strap. The measurement should be between 1 and 10 megohms (Mohms).

Cisco Product Number Amount of DRAM

MEM1600-2D=

CPA016-MEM2D= 2 MB

MEM1600-4D=

CPA016-MEM4D= 4 MB

MEM1600-8D=

CPA016-MEM8D= 8 MB

MEM1600-16D=

CPA016-MEM16D= 16 MB

Installing or Replacing the DRAM SIMM in Cisco 1600 Series Routers 3

Removing the Router Cover

Take the following steps to remove the router cover:

Step 1 Turn OFF the power by pressing the power switch on the rear panel to the off ( O )

position.

Step 2 Disconnect all cables from the rear panel.

Step 3 Place the router upside down a ﬂat, secure surface, such as a desk or table.

Step 4 Using the Phillips screwdriver, remove the screw at the center of the underside of the

router, as shown in Figure 1. Put the screw in a safe place.

Figure 1 Removing the Screw from the Bottom of the Router

Step 5 Using both hands to hold the top and bottom of the router together, turn the router over

so that it is right side up on the ﬂat surface and the rear panel is facing toward you.

Step 6 Using the Phillips screwdriver, remove the two screws from the rear panel of the router,

as shown in Figure 2. Put the screws in a safe place.

Figure 2 Removing the Screws from the Rear Panel

Bottom of router

H8610

DO NOT INSTALL ANY WAN

MODULE WITH POWER ON

H8626

Rear panel screws

4Installing or Replacing the DRAM SIMM in Cisco 1600 Series Routers

Removing the Router Cover

Step 7 Turn the router so that the rear panel is facing away from you, then use one hand to hold

the bottom half of the router in place on the ﬂat surface, as shown in Figure 3.

Step 8 Place the other hand on top of the router. With your ﬁngers, grasp the lip of the cover that

hangs over the rear panel of the router and gently pull the cover up and away from the

bottom section of the router. (See Figure 3.)

Set the router cover in a safe place.

Figure 3 Removing the Router Cover

Proceed with the next section, “Installing or Replacing the DRAM SIMM.”

DO NOT INSTALL ANY WAN

MODULE WITH POWER ON

H8609

Installing or Replacing the DRAM SIMM in Cisco 1600 Series Routers 5

Installing or Replacing the DRAM SIMM

Take the following steps to install or replace the DRAM SIMM:

Step 1 If the router has a DRAM SIMM already installed, locate it on the system card. With the

rear panel of the router facing you, the DRAM SIMM is located in the upper left corner

of the system card, as shown in Figure 4. If there is no DRAM SIMM installed the router,

proceed to Step 3 to install a DRAM SIMM in the location shown in Figure 4.

Figure 4 DRAM SIMM Location—Cisco 1600 Series Routers

Step 2 Remove any existing DRAM SIMM. While pulling outward on the tabs to unlatch them,

raise the SIMM to the vertical position and remove it from the SIMM socket.

(See Figure 5.)

Caution To prevent damage, do not push on the center of the DRAM SIMM. Handle the DRAM

SIMM carefully.

H8611

DRAM SIMM

Rear panel of router

6Installing or Replacing the DRAM SIMM in Cisco 1600 Series Routers

Replacing the Router Cover

Figure 5 Replacing the DRAM SIMM

Step 3 With the rear panel of the router still facing you, position the new DRAM SIMM so that

the polarization notch is located at the right end of the SIMM socket.

Caution To prevent damage, note that some DRAM SIMMs have the components mounted on the

rear side; therefore, when you insert the SIMM, always use the polarization notch as a reference, not

the position of the components on the SIMM.

Step 4 Insert the new DRAM SIMM by sliding the end with the metal ﬁngers into the SIMM

socket at approximately a 45-degree angle to the system card. Gently rock the SIMM

back into place until the latch on either side snaps into place. Do not use excessive force

because the connector could break.

Proceed with the next section “Replacing the Router Cover.”

Replacing the Router Cover

Take the following steps to replace the router cover:

Step 1 Align the top and bottom sections of the router.

Step 2 Close the cover by slowly pressing the top and bottom sections together. (See Figure 6.)

Polarization notch

DRAM SIMM card

H5839

Pull the tabs away with 

your thumbs, bracing your 

forefingers against the 

posts. Raise the SIMM 

to a vertical position.

Connector edge of 

the system card

Installing or Replacing the DRAM SIMM in Cisco 1600 Series Routers 7

Checking the DRAM SIMM Installation

Figure 6 Replacing the Cover

Step 3 Turn the router so that the rear panel is facing you, and replace the two screws that you

removed from the rear panel earlier.

Step 4 Using both hands to hold the router top and bottom together, turn the router upside down

so that the top of the router is resting on the ﬂat surface. Replace the screw that you

removed earlier from the underside of the router.

Step 5 Place the router right side up on the ﬂat surface and reconnect all cables to the router.

Step 6 Turn ON the power by pressing the power switch to the on ( | ) position.

Proceed with the next section, “Checking the DRAM SIMM Installation.”

Checking the DRAM SIMM Installation

After installing the DRAM SIMM, you should verify the installation by reading the messages the

router displays when you power it on:

If the DRAM SIMM is installed correctly, a message similar to the following will be displayed:

Cisco Internetwork Operating System Software

IOS (tm) 1600 Software (C1600-Y-L), Version 11.1(16539)

Compiled Tue 29-Oct-96 21:30 by xxxxx

Image text-base: 0x08019CB4, data-base: 0x02005000

cisco 1600 (68360) processor (revision C) with 9728K/512K bytes of memory.

Processor board ID 01335537

Bridging software.

X.25 software, Version 2.0, NET2, BFE and GOSIP compliant.

Basic Rate ISDN software, Version 1.0.

Noticethatthedisplayshown in bold textindicateshowmuchmainmemoryisinstalledintherouter.

In this example, the router has 10 MB of main memory—the memory stored in the DRAM SIMM

(8 MB) plus the memory stored in the ﬁxed memory chips (2 MB).

DO NOT INSTALL ANY WAN

MODULE WITH POWER ON

H8612

8Installing or Replacing the DRAM SIMM in Cisco 1600 Series Routers

Obtaining Service and Support

If the DRAM SIMM in not installed correctly or is defective, the memory amount stored in the

DRAM SIMM is not reﬂected in the message display. In the following display, an 8 MB

DRAM SIMM has been installed incorrectly in the router:

Cisco Internetwork Operating System Software

IOS (tm) 1600 Software (C1600-Y-L), Version 11.1(16539)

Compiled Tue 29-Oct-96 21:30 by xxxxx

Image text-base: 0x08019CB4, data-base: 0x02005000

cisco 1600 (68360) processor (revision C) with 1536K/512K bytes of memory.

Processor board ID 01335537

Bridging software.

X.25 software, Version 2.0, NET2, BFE and GOSIP compliant.

Basic Rate ISDN software, Version 1.0.

Notice that the line listing the main memory (shown in bold) shows only the 2 MB of memory that

is stored in the ﬁxed memory chips.

If the DRAM SIMM memory is not reﬂected in the display, repeat the DRAM SIMM upgrade

procedure to reinstall the DRAM SIMM. Make sure the DRAM SIMM is completely seated in the

SIMM socket. If display still does not reﬂect the additional memory stored in the DRAM SIMM, the

DRAM SIMM might be defective.

Obtaining Service and Support

For service and support for a product purchased from a reseller, contact the reseller. Resellers offer

a wide variety of Cisco service and support programs, which are described in the section “Service

and Support” in the information packet that shipped with your chassis.

Note If you purchased your product from a reseller, you can access Cisco Connection Online

(CCO) as a guest. CCO is Cisco Systems’ primary, real-time support channel.Your reseller offers

programs that include direct access to CCO’s services.

For service and support for a product purchased directly from Cisco, use CCO.

Cisco Connection Online

CCO is Cisco Systems’ primary, real-time support channel. SMARTnet customers and partners can

self-register on CCO to obtain additional content and services.

Note If you purchased your product from a reseller, you can access CCO as a guest. Your reseller

offers programs that include direct access to CCO’s services.

Available 24 hours a day, 7 days a week, CCO provides a wealth of standard and value-added

services to Cisco’s customers and business partners. CCO services include product information,

software updates, release notes, technical tips, the Bug Navigator, conﬁguration notes, brochures,

descriptions of service offerings, and download access to public and authorized ﬁles.

Installing or Replacing the DRAM SIMM in Cisco 1600 Series Routers 9

Cisco Connection Online

CCO serves a wide variety of users through two interfaces that are updated and enhanced

simultaneously—a character-based version and a multimedia version that resides on the World Wide

Web (WWW). The character-based CCO supports Zmodem, Kermit, Xmodem, FTP, and Internet

e-mail, and is excellent for quick access to information over lower bandwidths. The WWW version

of CCO provides richly formatted documents with photographs, ﬁgures, graphics, and video, as well

as hyperlinks to related information.

You can access CCO in the following ways:

•WWW: http://www.cisco.com.

•WWW: http://www-europe.cisco.com.

•WWW: http://www-china.cisco.com.

•Telnet: cco.cisco.com.

•Modem: From North America,408 526-8070; from Europe,33 1 64 46 40 82. Use the

following terminal settings: VT100 emulation; databits: 8; parity: none; stop bits: 1; and baud

rates up to 14.4 kbps.

For a copy of CCO’s Frequently Asked Questions (FAQ), contact [email protected]. For

additional information, contact [email protected].

Note If you need technical assistance with a Cisco product that is under warranty or covered by a

Cisco maintenance contract, contact Cisco’s Technical Assistance Center (TAC) at 800 553-2447,

408 526-7209, or [email protected].

Please use CCO to obtain general information about Cisco Systems, Cisco products, or upgrades. If

CCO is not accessible, contact 800 553-6387, 408 526-7208, or [email protected].

This document is to be used in conjunction with the Cisco 1600 Series Router Installation and Conﬁguration Guide and the NetBeyond Cisco 1600 Series Router Installation and

Conﬁguration Guide publications.

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Director, Workgroup Stack, and XCI are trademarks; Access by Cisco, Bringing the Power of Internetworking to Everyone, Enter the Net with MultiNet, and The Network Works.

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trademarks, or registered service marks mentioned in this document are the property of their respective owners.

969R

10 Installing or Replacing the DRAM SIMM in Cisco 1600 Series Routers

Cisco Connection Online

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