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Installing Memory in the Router
This chapter describes procedures for adding and replacing memory in Cisco 3600 series routers, and
contains the following sections:
Only trained and qualified personnel should be allowed to install or replace this equipment. To see
Warning
translations of the warnings that appear in this publication, refer to the Regulatory Compliance
and Safety Information document that accompanied this device.
Before performing any procedures described in this chapter, review these sections:
Caution
"Safety Recommendations" section on page 2-1
"General Site Requirements" section on page 2-3
"Installation Checklist" section on page 2-5
"Required Tools and Equipment for Installation and Maintenance" section on page 2-7
Note
When a procedure refers to the left side or right side of the chassis, it means as viewed from the front.
OL-2056-02
C H A P T E R
Cisco 3600 Series Hardware Installation Guide
5
5-1

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   Summary of Contents for Cisco 3600 Series

  • Page 1: Table Of Contents

    C H A P T E R Installing Memory in the Router This chapter describes procedures for adding and replacing memory in Cisco 3600 series routers, and contains the following sections: Accessing the Mainboard, page 5-2 • • Replacing DRAM and SDRAM, page 5-6 Replacing Flash Memory SIMMs, page 5-19 •...

  • Page 2: Accessing The Mainboard

    Lift the cover until it is free from the chassis and set it aside. Step 6 When you are ready to replace the cover, see the “Replacing the Cover on a Cisco 3620 or Cisco 3640 Router” section on page 5-30.

  • Page 3

    Removing the Cisco 3631 Router Cover Perform the following procedure to remove the chassis cover: Power OFF the router. However, to channel ESD voltages to ground, do not unplug the power cable. Step 1 Cisco 3600 Series Hardware Installation Guide OL-2056-02...

  • Page 4

    Step 4 Slide the cover to the side until the tabs are free from the slots. (See Figure 5-3.) Step 5 Figure 5-3 Removing the Cisco 3631 Router Cover Lift cover Slide cover Cisco 3600 Series Hardware Installation Guide OL-2056-02...

  • Page 5

    Installing Memory in the Router Accessing the Mainboard Removing the Cisco 3660 Mainboard Tray In this publication, references to Cisco 3660 routers include both Cisco 3661 and Cisco 3662 models. Note Use the following procedure to remove the mainboard tray: Power OFF the router.

  • Page 6: Replacing Dram And Sdram

    “Replacing the Cisco 3660 Mainboard Tray” section on page 5-33. Replacing DRAM and SDRAM Cisco 3600 series routers use two types of dynamic random access memory (DRAM): • DRAM SIMMs (Used in Cisco 3620 and Cisco 3640 Routers), page 5-7 •...

  • Page 7

    • protocol translations. The Cisco 3620 and Cisco 3640 routers each contain four 72-pin SIMM sockets (or banks) for DRAM. Each socket can be filled with a single 32-bit-wide, 72-pin DRAM SIMM. You can configure DRAM as a mixture of primary or main memory, which is reserved for the CPU, and shared memory, which is used for data transmitted or received by modules and WAN interface cards.

  • Page 8

    Chapter 5 Installing Memory in the Router Replacing DRAM and SDRAM Figure 5-5 DRAM SIMM Locations in the Cisco 3620 Router DRAM SIMMs Figure 5-6 DRAM SIMM Locations in the Cisco 3640 Router DRAM SIMMs Cisco 3600 Series Hardware Installation Guide...

  • Page 9

    Chapter 5 Installing Memory in the Router Replacing DRAM and SDRAM Table 5-1 32-Bit DRAM Configuration for Cisco 3620 Routers Bank 0 Bank 1 Bank 2 Bank 3 Total (SIMM 0) (SIMM 1) (SIMM 2) (SIMM 3) Memory 4 MB...

  • Page 10

    Chapter 5 Installing Memory in the Router Replacing DRAM and SDRAM Table 5-2 32-Bit DRAM Configuration for Cisco 3640 Routers Bank 0 (SIMM Bank 1 Bank 2 Bank 3 Total (SIMM 1) (SIMM 2) (SIMM 3) Memory 4 MB 4 MB...

  • Page 11

    Chapter 5 Installing Memory in the Router Replacing DRAM and SDRAM Table 5-3 64-Bit DRAM Configuration for Cisco 3640 Routers (continued) Bank 0 Bank 1 Bank 2 Bank 3 Total (SIMM 0) (SIMM 1) (SIMM 2) (SIMM 3) Memory 16 MB...

  • Page 12

    Hold the SIMM by the edges with your thumb and index finger and lift it out of the socket. Place the Step 4 removed SIMM in an antistatic bag to protect it from ESD damage. Step 5 Repeat Step 3 Step 4 for each SIMM. Cisco 3600 Series Hardware Installation Guide 5-12 OL-2056-02...

  • Page 13

    Repeat Step 3 through Step 5 for each SIMM. When you finish replacing SIMMs, proceed to the “Replacing the Cover on a Cisco 3620 or Cisco 3640 Router” section on page 5-30. Cisco 3600 Series Hardware Installation Guide 5-13 OL-2056-02...

  • Page 14

    SDRAM DIMMs Used in the Cisco 3631 and Cisco 3660 Router This section describes how to upgrade synchronous dynamic random access memory (SDRAM) dual in-line memory modules (DIMMs) in the Cisco 3631 and Cisco 3660 routers. You might need to upgrade the SDRAM DIMMs for the following reasons: •...

  • Page 15

    Chapter 5 Installing Memory in the Router Replacing DRAM and SDRAM Figure 5-10 SDRAM DIMM Locations in the Cisco 3631 Router SDRAM DIMMs Table 5-4 SDRAM Configurations for Cisco 3631 Routers Bank 0 (SIMM 0) Bank 1 (SIMM 1) Total Memory...

  • Page 16

    Chapter 5 Installing Memory in the Router Replacing DRAM and SDRAM Figure 5-11 SDRAM DIMM Locations in the Cisco 3660 Router SDRAM DIMMs Table 5-5 SDRAM Configurations for Cisco 3660 Routers Bank 0 (SIMM 0) Bank 1 (SIMM 1) Total Memory...

  • Page 17: Sdram Dimm Orientation

    To avoid damaging ESD-sensitive components, observe all ESD precautions. To avoid damaging the Caution underlying mainboard, do not use excessive force when you remove or replace DIMMs. Figure 5-12 SDRAM DIMM Connector edge Polarization notches Alignment holes Cisco 3600 Series Hardware Installation Guide 5-17 OL-2056-02...

  • Page 18: Removing Sdram Dimms

    Hold the DIMM by the edges with your thumb and index finger and lift it out of the socket. Place the Step 4 removed DIMM in an antistatic bag to protect it from ESD damage. If necessary, repeat Step 3 Step 4 for the other DIMM. Step 5 Cisco 3600 Series Hardware Installation Guide 5-18 OL-2056-02...

  • Page 19: Replacing Flash Memory Simms

    5-33. Replacing Flash Memory SIMMs This section describes how to upgrade the Flash memory SIMMs. The system code (Cisco IOS software) is stored in the Flash memory SIMMs. You might need to replace or add Flash memory SIMMs to upgrade to a new Cisco IOS software feature set.

  • Page 20

    SIMMs. Figure 5-14, Figure 5-15, and Figure 5-16 show the location of the Flash memory SIMMs on your router’s mainboard. Cisco 3600 Series Hardware Installation Guide 5-20 OL-2056-02...

  • Page 21

    Chapter 5 Installing Memory in the Router Replacing Flash Memory SIMMs Figure 5-14 Flash Memory SIMM Locations on the Cisco 3620 Mainboard Flash memory SIMMs Figure 5-15 Flash Memory SIMM Locations on the Cisco 3640 Mainboard Flash memory SIMMs Cisco 3600 Series Hardware Installation Guide...

  • Page 22

    Chapter 5 Installing Memory in the Router Replacing Flash Memory SIMMs Figure 5-16 Flash Memory SIMM Locations on the Cisco 3660 Mainboard Flash memory SIMMs Removing Flash Memory SIMMs Perform this procedure to remove a Flash memory SIMM from a mainboard: Step 1 Attach an ESD-preventive wrist strap and ensure that it makes good contact with your skin.

  • Page 23

    5-18.) Rock the SIMM into a vertical position using the minimum amount of force required. When the SIMM is properly seated, the socket guide posts fit in the alignment holes, and the locking springs click into place. Use a minimum of force. Cisco 3600 Series Hardware Installation Guide 5-23 OL-2056-02...

  • Page 24: Replacing The Rom

    You will need the following tools: ROM extraction tool or a small flat-blade screwdriver • Needlenose pliers • One 32-pin plastic leaded chip carrier (PLCC) for removing the ROM chip from the Cisco 3660 • mainboard Cisco 3600 Series Hardware Installation Guide 5-24...

  • Page 25

    Access the mainboard by following the procedures in one of the following sections: Step 2 Removing the Cisco 3620 or Cisco 3640 Router Cover, page 5-2 • Removing the Cisco 3660 Mainboard Tray, page 5-5 •...

  • Page 26

    Figure 5-20 ROM Location on the Cisco 3640 Mainboard Figure 5-21 ROM Location on the Cisco 3660 Mainboard If you have a Cisco 3620 or Cisco 3640 router, gently remove the old ROM with a ROM extraction tool Step 4 or a small flat-blade screwdriver, and set it aside.

  • Page 27

    ROM socket Step 5 For a Cisco 3620 or Cisco 3640 router, orient and insert the new ROM in its socket (shown in Figure 5-19 Figure 5-20), being careful to not bend or crush any of the bottom pins. To straighten out a bent pin, use needlenose pliers.

  • Page 28: Testing Rom Installation

    You can configure the router to boot from either image. In order to upgrade the ROM on the Cisco 3631, you will need to have a ROM image file available to copy from a remote server or internal flash memory.

  • Page 29: Closing The Router

    Chapter 5 Installing Memory in the Router Closing the Router Copyright (c) 2001 by cisco Systems, Inc. c3745 processor with 131072 Kbytes of main memory Main memory is configured to 64 bit mode with parity disabled Upgrade ROMMON initialized Reboot the router using the new ROM image:...

  • Page 30

    Chapter 5 Installing Memory in the Router Closing the Router Replacing the Cover on a Cisco 3620 or Cisco 3640 Router This section describes how to replace the router cover. You need a number 2 Phillips screwdriver to perform this procedure: Place the chassis so the front panel faces you.

  • Page 31

    Regulatory Compliance and Safety Information document that accompanied this device. Replacing the Cover on a Cisco 3631 Router Caution Before reinstalling the cover on the router, make sure that all cables are securely tucked in and are not in danger of being pinched or cut.

  • Page 32

    Chapter 5 Installing Memory in the Router Closing the Router Figure 5-26 Replacing the Cisco 3631 Router Cover Insert tabs and slide cover Close cover Reinstall the cover screws. Step 4 Reinstall the chassis on a rack or desktop. Step 5 Reconnect network interface cables.

  • Page 33

    Hold the tray so that the tabs at the tray’s lower corners are aligned with the ledge in the chassis opening. Step 2 (See part 1 of Figure 5-27.) Figure 5-27 Replacing the Cisco 3660 Mainboard Tray Step 3 Slide the mainboard tray into the chassis until firm contact is made with the backplane. (See part 2 in Figure 5-27.) Push the levers at the lower corners of the mainboard inward.

  • Page 34: Installing A Flash Memory Card

    Installing and Configuring Flash Memory Cards in Cisco 3620, Cisco 3640, and Cisco 3660 Routers This section describes how to install Flash memory cards in the Cisco 3620, Cisco 3640, and Cisco 3660 routers and includes selected configuration examples for common procedures. For further configuration information, refer to the Cisco IOS configuration guides and command references.

  • Page 35: Installing And Configuring Flash Memory Cards In Cisco 3620, Cisco 3640, And Cisco 3660 Routers

    PCMCIA slots until the card is seated in the connector. (See Figure 5-29.) In Cisco 3620 and Cisco 3640 routers, the card does not fit completely into the router; part of the Note card projects from the slot.

  • Page 36

    Chapter 5 Installing Memory in the Router Installing and Configuring Flash Memory Cards in Cisco 3620, Cisco 3640, and Cisco 3660 Routers Figure 5-29 Installing a Flash Memory Card in a Cisco 3620 or Cisco 3640 Router PCMCIA slots Flash memory card...

  • Page 37: Removing A Flash Memory Card

    Do not remove the Flash memory card while it is performing a read or write operation, because the router will shut down. Perform this procedure to remove a Flash memory card: On Cisco 3620 and Cisco 3640 routers, grasp the card near the slot and pull it straight out. (See Step 1 Figure 5-31.)

  • Page 38

    Chapter 5 Installing Memory in the Router Installing and Configuring Flash Memory Cards in Cisco 3620, Cisco 3640, and Cisco 3660 Routers Figure 5-32 Removing a Flash Memory Card from a Cisco 3660 Router PCMCIA slots Slot buttons Partitioning a Flash Memory Card Flash memory cards ordered from Cisco Systems ship blank (without software installed).

  • Page 39

    Copying a File from System Flash Memory to a Flash Memory Card You can use a Flash memory card to store a backup copy of a Cisco IOS image or other file. Follow these steps to copy a file from system (onboard) Flash memory to a Flash memory card:...

  • Page 40

    Installing Memory in the Router Installing and Configuring Flash Memory Cards in Cisco 3620, Cisco 3640, and Cisco 3660 Routers Press Return or type y to erase the current contents of the partition, or enter n to save the contents. Then...

  • Page 41

    Chapter 5 Installing Memory in the Router Installing and Configuring Flash Memory Cards in Cisco 3620, Cisco 3640, and Cisco 3660 Routers Copying a File from a Flash Memory Card to System Flash Memory You can copy files from a Flash memory card to system (onboard) Flash memory (for instance, when restoring a backup).

  • Page 42

    Booting from a Flash Memory Card You can configure the router to boot from a Cisco IOS image on the Flash memory card, rather than from system Flash memory. The router boots the image on the Flash memory card, copies the image to onboard DRAM, and then executes the image from DRAM.

  • Page 43

    Chapter 5 Installing Memory in the Router Installing and Configuring Flash Memory Cards in Cisco 3620, Cisco 3640, and Cisco 3660 Routers Enter the boot system flash {slot0: | slot1:}[partition:filename] command to specify the boot image Step 3 location and name. In the following example, the boot image is located on the Flash memory card in the 0 slot, partition 3, and the filename is new.image:...

  • Page 44: Installing And Formatting Compact Flash Memory Cards In Cisco 3631 Routers

    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.

  • Page 45: Compact Flash Memory Card Installation And Removal

    Chapter 5 Installing Memory in the Router Installing and Formatting Compact Flash Memory Cards in Cisco 3631 Routers Compact Flash Memory Card Installation and Removal Perform the procedure below for installing or removing a Compact Flash memory card mounted internally on the router CPU/mainboard. To access the internal Compact Flash memory card, you need to remove the chassis cover.

  • Page 46

    Chapter 5 Installing Memory in the Router Installing and Formatting Compact Flash Memory Cards in Cisco 3631 Routers Figure 33 Removing the Cover from a Cisco 3631 Lift cover Slide cover Removing the Compact Flash Memory Card After removing the chassis cover as described in the “Removing the Cisco 3631 Router Cover”...

  • Page 47: Installing The Compact Flash Memory Card

    Chapter 5 Installing Memory in the Router Installing and Formatting Compact Flash Memory Cards in Cisco 3631 Routers Figure 34 Compact Flash Memory Card Location in a Cisco 3631 Compact Flash memory card Retention screw Remove the retention screw that retains the Compact Flash memory card by using the Phillips Step 2 screwdriver;...

  • Page 48: Reinstalling The Cover

    Chapter 5 Installing Memory in the Router Installing and Formatting Compact Flash Memory Cards in Cisco 3631 Routers Reinstalling the Cover Before reinstalling the cover on the router, make sure that all cables are securely tucked in and are Caution not in danger of being pinched or cut.

  • Page 49: Formatting Procedures For Compact Flash Memory Cards

    ROM monitor. Determining the File System on a Compact Flash Memory Card To determine the file system of a Compact Flash memory card in a Cisco 3631, enter the show flash: command. If the content of the Compact Flash memory card displays, the card was formatted with a Class B Flash file system.

  • Page 50: Formatting Compact Flash Memory As A Class B Flash File System

    Chapter 5 Installing Memory in the Router Installing and Formatting Compact Flash Memory Cards in Cisco 3631 Routers Base FAT Sector Base Data Sector Please use "dir" command to display the contents of the card. The following example shows output for an internal Compact Flash memory card formatted with a...

  • Page 51: File And Directory Procedures

    Chapter 5 Installing Memory in the Router Installing and Formatting Compact Flash Memory Cards in Cisco 3631 Routers eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee ...erased Erase of flash: complete File and Directory Procedures The following sections describe file and directory procedures for internal Compact Flash memory cards.

  • Page 52

    Delete Files from Compact Flash Memory To delete a file from a Compact Flash memory card, use the delete flash: filename command. The following example shows output for deleting a Cisco IOS file from a Compact Flash memory card: Router# delete flash:c3725-i-mz.tmp Delete filename [c3725-i-mz.tmp]?

  • Page 53

    Rename a File in Flash To rename a file in a Compact Flash memory card, use the rename flash: original-filename flash: new-filename command. The following example shows output for renaming a Cisco IOS file in an internal Compact Flash memory card: Router# dir flash:...

  • Page 54: Directory Operations

    Chapter 5 Installing Memory in the Router Installing and Formatting Compact Flash Memory Cards in Cisco 3631 Routers Directory Operations Create a New Directory To create a directory in Compact Flash memory, use the mkdir flash:/directory-name command. The following example shows output for first displaying the contents of an internal Compact Flash...

  • Page 55: File Operations

    Chapter 5 Installing Memory in the Router Installing and Formatting Compact Flash Memory Cards in Cisco 3631 Routers Enter a Directory and Determine Which Directory You Are In To enter a directory in Compact Flash memory, use the cd flash:/directory-name command.

  • Page 56

    Chapter 5 Installing Memory in the Router Installing and Formatting Compact Flash Memory Cards in Cisco 3631 Routers The following example shows output for copying a configuration file to the running configuration in an internal Compact Flash memory card (...

  • Page 57

    Installing Memory in the Router Installing and Formatting Compact Flash Memory Cards in Cisco 3631 Routers The following example shows output for deleting a Cisco IOS file from a Compact Flash memory card, and then releasing the memory space originally occupied by the file:...

  • Page 58

    Chapter 5 Installing Memory in the Router Installing and Formatting Compact Flash Memory Cards in Cisco 3631 Routers Cisco 3600 Series Hardware Installation Guide 5-58 OL-2056-02...

This manual also for:

3620, 3640

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