Cisco Systems OL-2056-02 manual Replacing Flash Memory SIMMs, Installing Sdram DIMMs

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Chapter 5 Installing Memory in the Router

Replacing Flash Memory SIMMs

Installing SDRAM DIMMs

Perform this procedure to install SDRAM DIMMs:

Step 1 Attach an ESD-preventive wrist strap and ensure that it makes good contact with your skin. Connect the equipment end of the wrist strap to the metal back plate of the chassis, avoiding contact with the connectors.

Step 2 On the mainboard, locate the SDRAM DIMM sockets shown in Figure 5-11.

Caution Handle DIMMs by the non-connector edges only. DIMMs are ESD-sensitive components and can be damaged by mishandling.

Step 3 Hold the DIMM with the polarization notch on the right, near the rear of the chassis, and with the connector edge at the bottom.

Step 4 Beginning with socket 0, insert the DIMM perpendicular to the socket. Push firmly into place (see Figure 5-13), using the minimum amount of force required. When the DIMM is properly seated, the socket guide posts fit through the alignment holes, and the locking spring clips click into place.

Step 5 Ensure that each DIMM is straight (perpendicular to the socket). (See Figure 5-13.)

Caution It is normal to feel some resistance when installing a DIMM, but do not use excessive force on the DIMM, and do not touch the surface components.

Step 6 Repeat Step 3 through Step 5 for each DIMM.

When you finish replacing DIMMs, and have installed all internal components, proceed to the “Replacing the Cisco 3660 Mainboard Tray” section on page 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.

The router contains one or two 80-pin Flash memory SIMMs. You can upgrade Flash memory by replacing the existing 4-MB SIMM with an 8- or 16-MB SIMM, or by adding a SIMM to the second Flash memory socket. You can install from 4 to 32 MB of Flash memory. The size of the SIMMs in the two Flash memory sockets need not be the same.

Note Flash memory SIMMs are not interchangeable with DRAM SIMMs (used in Cisco 3620 and Cisco 3640 routers) or SDRAM DIMMs (used in Cisco 3631 and Cisco 3660 routers).

Each Flash memory SIMM socket corresponds to one bank of memory. Fill banks starting with 0, and empty banks starting with 1. Bank 0 must always be filled first and emptied last.

Table 5-6lists possible Flash memory SIMM configurations and the resulting total Flash memory.

Cisco 3600 Series Hardware Installation Guide

 

OL-2056-02

5-19

 

 

 

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Contents Installing Memory in the Router Removing the Cisco 3620 or Cisco 3640 Router Cover Accessing the MainboardRemoving the Cisco 3631 Router Cover Perform the following procedure to remove the chassis coverRemoving the Cisco 3631 Router Cover Lift cover Slide 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 16 MB Bank Total Simm MemoryBank 0 Simm Total Memory Not installed 16 MB MB-Dual2 24 MB 32 MB 40 MB 48 MBDram Simm Dram Simm OrientationTop view Front of chassis Removing Dram SimmsRepeat through for each Simm Installing Dram SIMMsSdram DIMMs Used in the Cisco 3631 and Cisco 3660 Router Bank 0 Simm Bank 1 Simm Total Memory 64 MB Not installed 32 MB 96 MB 128 MB 160 MB 192 MB 256 MB11 Sdram Dimm Locations in the Cisco 3660 Router 12 Sdram Dimm Sdram Dimm OrientationRemoving Sdram Dimms 13 Removing and Installing Sdram DIMMsReplacing Flash Memory SIMMs Installing Sdram DIMMs12 MB Bank16 MB 20 MB 12 MB 24 MB 32 MB 64 MB 14 Flash Memory Simm Locations on the Cisco 3620 Mainboard 16 Flash Memory Simm Locations on the Cisco 3660 Mainboard Removing Flash Memory SIMMs17 Removing Flash Memory SIMMs Installing Flash Memory SIMMsCisco 3620, Cisco 3640, and Cisco Replacing the ROM19 ROM Location on the Cisco 3620 Mainboard Locate the ROM on the mainboard. See -19through Figure20 ROM Location on the Cisco 3640 Mainboard 22 Removing the ROM from the Cisco 3660 Mainboard Cisco Testing ROM InstallationVerify the ROM version Reboot the router using the new ROM imageSelect the ROM image for next reboot Router # upgrade rom-monitor preference readonly upgrade24 Replacing the Cisco 3620 Router Cover Replacing the Cover on a Cisco 3620 or Cisco 3640 RouterReplacing the Cover on a Cisco 3631 Router 26 Replacing the Cisco 3631 Router Cover Insert tabs and slide cover Close cover27 Replacing the Cisco 3660 Mainboard Tray 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 Partitioning a Flash Memory Card Enter global configuration modeRouter# configure terminal Routerconfig# partition slot1 1 2Displaying the Contents of a Flash Memory Card Router# copy running-config slot03myconfig Copying a Running Configuration File to a Flash Memory CardCopying a File Between Slots Enter privileged Exec mode as followsRouter# copy slot03TESTFILE flash2TESTFILE2 Router# copy slot03TESTFILE slot1 Booting from a Flash Memory CardErasing the Contents of a Flash Memory Card Tools and Equipment Needed Preventing Electrostatic Discharge DamageRemoving the Chassis Cover Compact Flash Memory Card Installation and RemovalRemoving the Cover from a Cisco Removing the Compact Flash Memory CardInstructions on formatting the Compact Flash memory card Installing the Compact Flash Memory CardReplacing the Cover on a Cisco Reinstalling the CoverDetermining the File System on a Compact Flash Memory Card Formatting Procedures for Compact Flash Memory CardsSafety Information document that accompanied this device ROM monitor to recognize and boot the FlashRouter# format flash CommandFormatting Compact Flash Memory as a DOS File System Class B Flash file systemFile Operations File and Directory ProceduresProcedures for Use with DOS File System Router# copy flashmy-config2 running-configDisplay Geometry and Format Information Display the Contents of a Compact Flash CardDelete Files from Compact Flash Memory Rename a File in Flash Display the Contents of a FileCreate a New Directory Directory OperationsRemove a Directory Enter a Directory and Determine Which Directory You Are Procedures for Use with Class B Flash File SystemDisplay the Contents of a Compact Flash Memory Card Router# more flashc3725-i-mz Router# squeeze flashOL-2056-02
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