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Cisco Systems 3745 Series, 3600 Series, 3725 Series manual Removing the Cisco 3725 Router Cover

Models: 3745 Series 3725 Series 3600 Series

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Removing the Cisco 3725 Router Cover

Upgrading System Memory in Cisco 3725 Routers

Removing the Cisco 3725 Router Cover

To remove the router cover, follow these steps:

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 Turn off the power and unplug the power cord.

Warning Before opening the unit, disconnect the telephone-network cables to avoid contact with telephone-network voltages. Statement 1041

Step 3 Disconnect all network-interface cables from the rear panel.

Step 4 Place the chassis so that the rear panel faces you.

Step 5 Remove the six screws located on top of the cover. Set the screws aside in a safe place.

Step 6 Lift the front edge of the cover up to a 45-degree angle so that it clears the front of the chassis. (See Figure 1 part 1.)

Step 7 Slide the cover to the side, away from the side with the fans, until the tabs are free from the slots. (See Figure 1 part 2.)

Upgrading System Memory in Cisco 3700 Series Routers

	OL-5423-02	11

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Cisco Systems 3745 Series, 3600 Series, 3725 Series manual Removing the Cisco 3725 Router Cover

Contents

Upgrading System Memory in Cisco 3700 Series Routers Product NumbersMEM3725-64D=, MEM3725-128D= Memory Capacities Memory Capacities, page Memory Configurations, pageSafety Recommendations, page Tools and Equipment Needed, page Recovering Compact Flash Memory and System Images, pageDynamic Memory Memory ConfigurationsTotal Memory Safety RecommendationsCompact Flash Memory DIMM or SODIMMNote SAVE THESE INSTRUCTIONS Safety WarningsWarning IMPORTANT SAFETY INSTRUCTIONS Warning DefinitionHinweis BEWAHREN SIE DIESE SICHERHEITSANWEISUNGEN AUF Attention IMPORTANTES INFORMATIONS DE SÉCURITÉRemarque CONSERVEZ CES INFORMATIONS Warnung WICHTIGE SICHERHEITSANWEISUNGENNota GUARDE ESTAS INSTRUÇÕES Advarsel VIKTIGE SIKKERHETSINSTRUKSJONERMerk TA VARE PÅ DISSE INSTRUKSJONENE Aviso INSTRUÇÕES IMPORTANTES DE SEGURANÇAWarning Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement Safety with Electricity Preventing Electrostatic Discharge Damage Tools and Equipment NeededUpgrading System Memory in Cisco 3725 Routers Removing the Cisco 3725 Router Cover SDRAM DIMM Location and Orientation Replacing Cisco 3725 SDRAMFigure 3 SDRAM DIMM Orientation in the Cisco 3725 Router Removing SDRAM DIMMsFigure 2 SDRAMM DIMM Locations in the Cisco 3725 Router Step 5 If necessary, repeat Step 3 and Step 4 for the other DIMM Step 6 Proceed to the “Installing SDRAM DIMMs” section on page“Replacing the Cisco 3725 Cover” section on page Installing SDRAM DIMMsReplacing CompactFlash Memory Cards “Replacing CompactFlash Memory Cards” section on pageReplacing the Cisco 3725 Cover Removing the Cisco 3745 Mainboard Tray Upgrading System Memory in Cisco 3745 RoutersReplacing Connections to the Router OL-5423-02 Figure 6 Captive Screws on a Cisco 3745 RouterUpgrading System Memory in Cisco 3745 Routers Upgrading System Memory in Cisco 3700 Series RoutersFan tray Figure 7 Removing the Front Panel from a Cisco 3745 RouterHinges SDRAM SODIMM Location and Orientation Replacing Cisco 3745 SDRAMFigure 9 SDRAMM SODIMM Location in the Cisco 3745 Router Removing SDRAM SODIMMsMemory module Installing SDRAM SODIMMsStep 6 Proceed to the “Installing SDRAM DIMMs” section on page “Replacing CompactFlash Memory Cards” section on page “Replacing the Cisco 3745 Mainboard” section on pageReplacing CompactFlash Memory Cards Step 7 Proceed to either of the following as appropriateReplacing the Cisco 3745 Mainboard Front panel Figure 13 Installing the Front Panel on a Cisco 3745 RouterAccess door HingesFigure 14 Captive Screws on a Cisco 3745 Router Replacing Connections to the RouterRecovering Compact Flash Memory and System Images Using the xmodem CommandObtaining Documentation Cisco.comCisco Technical Support Website Documentation FeedbackObtaining Technical Assistance Ordering DocumentationObtaining Additional Publications and Information Submitting a Service RequestDefinitions of Service Request Severity http//cisco.com/univercd/cc/td/doc/pcat