Cisco Systems OL-2056-02 manual Locate the ROM on the mainboard. See -19through Figure

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Chapter 5 Installing Memory in the Router

Replacing the ROM

Follow this procedure to replace the ROM:

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 backplane of the chassis, avoiding contact with the connectors.

Step 2 Access the mainboard by following the procedures in one of the following sections:

•Removing the Cisco 3620 or Cisco 3640 Router Cover, page 5-2

•Removing the Cisco 3660 Mainboard Tray, page 5-5

Caution Correct placement of the ROM is crucial. If improperly positioned, the new component could be damaged when the router is powered on. Read all instructions before proceeding. To prevent damage to the ROM from ESD (when handling the router and its components), follow the ESD procedures described in the “Preventing Electrostatic Discharge Damage” section on page 2-2 . Be careful not to damage or scratch the printed circuit card under the ROM.

Step 3 Locate the ROM on the mainboard. (See Figure 5-19through Figure 5-21.)

Figure 5-19 ROM Location on the Cisco 3620 Mainboard

H7319

ROM

Cisco 3600 Series Hardware Installation Guide

	OL-2056-02	5-25

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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 InstallationSelect the ROM image for next reboot Reboot the router using the new ROM imageRouter # upgrade rom-monitor preference readonly upgrade Verify the ROM version24 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 Router# configure terminal Enter global configuration modeRouterconfig# partition slot1 1 2 Partitioning a Flash Memory CardDisplaying 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 CoverSafety Information document that accompanied this device Formatting Procedures for Compact Flash Memory CardsROM monitor to recognize and boot the Flash Determining the File System on a Compact Flash Memory CardFormatting Compact Flash Memory as a DOS File System CommandClass B Flash file system Router# format flashProcedures for Use with DOS File System File and Directory ProceduresRouter# copy flashmy-config2 running-config File OperationsDisplay 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