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Corporate Headquarters:
Copyright © 2002. Cisco Systems, Inc. All rights reserved.
Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA
Upgrading System Memory in Cisco 3600 Series
Routers
Product Numbers:
MEM3600-4FS=, MEM3600-8FS=, MEM3600-16FS=, MEM3600-32FS=, MEM3620-4D=, MEM3620-8D=,
MEM3620-16D=, MEM3631-32CF-INCL, MEM3631-32U64CF, MEM3631-32U128CF, MEM3631-64CF=,
MEM3631-128CF=, MEM3631-64D-INCL, MEM3631-64U128D, MEM3631-64U192D, MEM3631-64U256D,
MEM3631-64D=, MEM3631-128D=, MEM3640-2X4D=, MEM3640-2X8D=, MEM3640-2X16D=, MEM3640-2X32D=,
MEM3660-16D=, MEM3660-32D=, MEM3660-64D=, MEM3660-128D=, BOOT-3600=
This document describes how to upgrade the following in a Cisco 3600 series router:
Dynamic random-access memory (DRAM) single in-line memory modules (SIMMs)
Synchronized dynamic random-access memory (SDRAM) dual in-line memory modules (DIMMs)
Cisco Flash memory SIMMs
Read-only memory (ROM)
Note In this document, the term “Cisco 3600 series” represents the following router models: Cisco 3620
router, Cisco 3631 router, Cisco 3640 router, and Cisco 3660 router.
Use this document in conjunction with the following:
Cisco 3600 Series Hardware Installation Guide and the Regulatory Compliance and Safety
Information document for your router, both available online at
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_mod/cis3600/hw_inst/
Installing and Configuring Cisco Flash Memory Cards in Cisco 3600 Series Routers, available
online at
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_mod/cis3600/hw_inst/hw_notes/inde
x.htm
If you have questions or need help, see the “Obtaining Documentation” section on page 38 and the
“Obtaining Technical Assistance” section on page 39 for further information.
This document contains the following sections:
Memory Capacities, page 2
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Résumé du contenu

Page 1 - Corporate Headquarters:

Corporate Headquarters:Copyright © 2002. Cisco Systems, Inc. All rights reserved.Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 U

Page 2 - Memory Capacities

10Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Safety RecommendationsWarningMeansdanger. You are in a situation that could cause bodi

Page 3 - Memory Configurations

11Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Safety RecommendationsWarningRead the installation instructions before you connect the

Page 4

12Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Safety RecommendationsWarningBefore performing any of the followingprocedures,ensure t

Page 5

13Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Safety RecommendationsWarningHazardous network voltages are present in WAN ports regar

Page 6

14Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Tools and Equipment NeededCaution For safety, periodically check the resistance value

Page 7 - Cisco Flash Memory

15Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Opening the RouterRemoving the Router Cover (Cisco 3620, Cisco 3631, Cisco 3640)Follow

Page 8

16Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Opening the RouterFigure 2 Removing the Cisco 3631 Router CoverFigure 3 Removing the C

Page 9

17Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Opening the RouterStep 3 Turn OFF the power and unplug the power cord.WarningBefore op

Page 10 - Safety Recommendations

18Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Replacing DRAM and SDRAMFigure 4 Removing the Cisco 3660 Mainboard TrayCaution The mai

Page 11 - Safety with Electricity

19Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Replacing DRAM and SDRAMFigure 5 DRAM SIMM Locations in the Cisco 3620 RouterFigure 6

Page 12

2Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Memory Capacities• Memory Configurations, page 3• Safety Recommendations, page 9• Tools

Page 13

20Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Replacing DRAM and SDRAMSIMMs are manufactured with a polarization notch to ensure pro

Page 14 - Opening the Router

21Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Replacing DRAM and SDRAMFigure 8 Removing DRAM SIMMsStep 4 Hold the SIMM by the edges

Page 15

22Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Replacing DRAM and SDRAMFigure 9 Installing DRAM SIMMsStep 5 Ensure that each SIMM is

Page 16

23Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Replacing DRAM and SDRAMFigure 10 SDRAM DIMM Locations in the Cisco 3631 RouterFigure

Page 17

24Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Replacing DRAM and SDRAMDIMMs are manufactured with polarization notches to ensure pro

Page 18 - Replacing DRAM and SDRAM

25Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Replacing DRAM and SDRAMStep 1 Attach an ESD-preventive wrist strap and ensure that it

Page 19

26Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Replacing Cisco Flash Memory SIMMsInstalling SDRAM DIMMsFollow these steps to install

Page 20 - Removing DRAM SIMMs

27Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Replacing Cisco Flash Memory SIMMsFigure 15 Cisco Flash Memory SIMM Locations on the C

Page 21 - Installing DRAM SIMMs

28Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Replacing Cisco Flash Memory SIMMsFigure 17 Cisco Flash Memory SIMM Locations on the C

Page 22

29Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Replacing Cisco Flash Memory SIMMsStep 4 Remove the SIMM from its socket by pulling th

Page 23

3Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Memory ConfigurationsMemory ConfigurationsFor information on configuring dynamic (DRAM

Page 24 - Removing SDRAM DIMMs

30Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Replacing ROMStep 4 Beginning with bank 0, insert the Cisco Flash memory SIMM at an an

Page 25

31Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Replacing ROMStep 1 Attach an ESD-preventive wrist strap and ensure that it makes good

Page 26 - Installing SDRAM DIMMs

32Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Replacing ROMFigure 21 ROM Location on the Cisco 3640 MainboardFigure 22 ROM Location

Page 27 - Flash memory SIMMs

33Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Replacing ROMFigure 23 Removing the ROM from the Cisco 3660 MainboardStep 5 Orient and

Page 28

34Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Closing the RouterClosing the RouterBefore closing the router, make sure that all cabl

Page 29

35Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Closing the RouterFigure 26 Replacing the Cisco 3631 Router CoverFigure 27 Replacing t

Page 30 - Replacing ROM

36Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Closing the RouterStep 5 Lower the front of the cover onto the chassis, making sure th

Page 31

37Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Replacing Connections to the RouterFigure 28 Replacing the Cisco 3660 Mainboard TraySt

Page 32

38Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Testing ROM InstallationWarningRead the installation instructions before you connect t

Page 33

39Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Obtaining DocumentationUsing the xmodem CommandIf the system image is erased from Cisc

Page 34 - Closing the Router

4Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Memory Configurations–Have the same access time (in nanoseconds).• SIMMs in banks 2 and

Page 35

40Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Obtaining Technical AssistanceDocumentation FeedbackIf you are reading Cisco product d

Page 36 - Information

41Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Obtaining Technical Assistance• Priority level 4 (P4)—You need information or assistan

Page 37

42Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Obtaining Technical Assistance

Page 38 - Testing ROM Installation

43Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Obtaining Technical AssistanceThis document is to be used in conjunction with Cisco 36

Page 39 - Obtaining Documentation

44Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Obtaining Technical Assistance

Page 40 - Technical Assistance Center

5Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Memory ConfigurationsTable 3 32-Bit DRAM Configuration for Cisco 3640 RoutersBank 0 (SIM

Page 41 - Cisco TAC Escalation Center

6Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Memory ConfigurationsSDRAM DIMMs (Cisco 3631 and Cisco 3660 Routers)Cisco 3631 and Cisc

Page 42

7Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Memory ConfigurationsCisco Flash MemoryCisco IOS software on Cisco 3600 routers is stor

Page 43

8Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Memory ConfigurationsStep 1 To see how much Cisco Flash memory is currently installed i

Page 44

9Upgrading System Memory in Cisco 3600 Series Routers78-3636-05Safety RecommendationsSafety RecommendationsFollow these guidelines to ensure general s

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